★ SOSA Commercial Scenting
A business with thirty years of trust is not starting from nothing - the risk is changing a room people already recognise
★ ★ ★ ★ ★
★★★★★
"Thirty-four years in Hazratganj. My worry was never the machine, it was our oldest customers walking in and feeling we had become somebody else. SOSA set it so low that nobody remarked on it, which was exactly right."
Quiet Luxury · Hotel Collection
★★★★★
"Bridal families sit with us for two hours. They told us plainly that a two-hour sit means going lower, not deeper, and that the private lounge takes less than the floor, not more."
SOSA Vaayu
★★★★★
"Our chikankari is the thing people come to look at. SOSA agreed the craft stays the hero and the air stays underneath it. No theme, no costume."
White Tea Serenity · Hotel Collection
★★★★★
"The kitchen sits off our lobby. They told us not to scent anywhere the food travels and to fix the extract first. We did, and only then put a unit at the entrance."
SOSA Vaayu
★★★★★
"Patients come to us three times a week. Staff and repeat patients were the whole question, and the answer was a lower level and a switch anyone can turn off."
Boond · Hotel Collection
★★★★★
"Sales gallery with a double-height entrance. The advice was placement low and inward rather than a bigger number, and to wait for the new fit-out to stop off-gassing first."
SOSA Vaayu · Quiet Luxury
★★★★★
"Thirty-four years in Hazratganj. My worry was never the machine, it was our oldest customers walking in and feeling we had become somebody else. SOSA set it so low that nobody remarked on it, which was exactly right."
Quiet Luxury · Hotel Collection
★★★★★
"Bridal families sit with us for two hours. They told us plainly that a two-hour sit means going lower, not deeper, and that the private lounge takes less than the floor, not more."
SOSA Vaayu
★★★★★
"Our chikankari is the thing people come to look at. SOSA agreed the craft stays the hero and the air stays underneath it. No theme, no costume."
White Tea Serenity · Hotel Collection
★★★★★
"The kitchen sits off our lobby. They told us not to scent anywhere the food travels and to fix the extract first. We did, and only then put a unit at the entrance."
SOSA Vaayu
★★★★★
"Patients come to us three times a week. Staff and repeat patients were the whole question, and the answer was a lower level and a switch anyone can turn off."
Boond · Hotel Collection
★★★★★
"Sales gallery with a double-height entrance. The advice was placement low and inward rather than a bigger number, and to wait for the new fit-out to stop off-gassing first."
SOSA Vaayu · Quiet Luxury
✓ Waterless cold-air nebulising · no water, no humidity, no wet residue ✓ Bluetooth app and timer · set it to your trading hours, your season and your quietest level ✓ Talk it through on WhatsApp +91 96192 18531
Founder Diaries · Lucknow Commercial Scenting Guides
What is the question most practices skip? Who owns the setting. Name a person, today, before anything is ordered. A level that belongs to nobody drifts upward within months, and the cause is mechanical rather than careless: the people able to adjust it are the people who have adapted to it and can no longer detect it, so each honest small increase becomes the new baseline. The defence is a written card kept with the unit - unit, register, exact setting, hours, date, who set it - a monthly check by somebody who has been outside ten minutes and does not work in the building, and a rule that lowering is free while raising requires a written reason and a date. If you cannot name that person, the honest answer is not yet.
When is the honest answer to buy nothing? More often than a supplier will admit. When there is no enclosed customer-facing volume - an open front, or a waiting area that is really a widened corridor serving the whole floor. When a source is unresolved - waste, linen, the sluice, drainage, disinfectant dosing, an air conditioning system nobody has serviced, or a fit-out still off-gassing. When nobody will own the setting. When your clinical leadership has not been asked, or has said no. And when the money would do more good on the extract fan, the acoustics or the seating, which in a lot of premium practices it would. Any one of those makes the answer not yet, and not yet is a real answer rather than a polite refusal.
See the SOSA Vaayu ₹11,999 →
Your own building, in that order, and the machine last. This page is written to be worked through rather than read - a document you can take round your practice with a pen, and finish knowing whether to buy something, and what.
It is deliberately arranged so that the product questions come at the end, because in almost every enquiry I receive they come first, and that is why so many installations disappoint the person who paid for them. A machine is the smallest variable in this decision. The connected volume of your reception, which doors genuinely stay shut, what the place already smells of and why, what your air conditioning actually is, who will hold a setting, what your clinical leadership says about every area past reception, and how a patient or a member of staff raises a problem - all of those determine the outcome, and none of them is on a product page.
The checklist has three parts. Part one is your building: volume, doors, the front, what it smells of, and the air conditioning. Part two is your people: who owns the setting, what your clinical leadership has decided, how staff and patients report something, and what happens when they do. Part three is the product, and it is the shortest part of the page.
And I want to say at the start what I will say again at the end, because it is the most useful thing here. Be willing to finish this document and conclude "not yet". Not as a polite refusal and not as a negotiating position - as a real answer. A practice with an unresolved smell, or no enclosed customer-facing volume, or nobody who will own a setting, should not buy a diffuser this year, and the money is better spent on the extract fan, the seating or the acoustics. A supplier who never reaches that conclusion about anybody is selling rather than advising.
The standing limits, stated up front. I will not tell you that a scent affects appointments, enquiries, footfall, patient numbers, referrals, retention or any business result - the honest ceiling is improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes. Fragrance adds scent and never removes odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air or is an infection-control product, a clinical product or a medical device. Nothing here is clinical, facilities, plumbing or HVAC advice. Treatment rooms, procedure rooms and consultation cabins are unscented, and the treating clinician decides what may be in the air anywhere in your building - their decision overrides every line of this checklist.
It is deliberately arranged so that the product questions come at the end, because in almost every enquiry I receive they come first, and that is why so many installations disappoint the person who paid for them. A machine is the smallest variable in this decision. The connected volume of your reception, which doors genuinely stay shut, what the place already smells of and why, what your air conditioning actually is, who will hold a setting, what your clinical leadership says about every area past reception, and how a patient or a member of staff raises a problem - all of those determine the outcome, and none of them is on a product page.
The checklist has three parts. Part one is your building: volume, doors, the front, what it smells of, and the air conditioning. Part two is your people: who owns the setting, what your clinical leadership has decided, how staff and patients report something, and what happens when they do. Part three is the product, and it is the shortest part of the page.
And I want to say at the start what I will say again at the end, because it is the most useful thing here. Be willing to finish this document and conclude "not yet". Not as a polite refusal and not as a negotiating position - as a real answer. A practice with an unresolved smell, or no enclosed customer-facing volume, or nobody who will own a setting, should not buy a diffuser this year, and the money is better spent on the extract fan, the seating or the acoustics. A supplier who never reaches that conclusion about anybody is selling rather than advising.
The standing limits, stated up front. I will not tell you that a scent affects appointments, enquiries, footfall, patient numbers, referrals, retention or any business result - the honest ceiling is improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes. Fragrance adds scent and never removes odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air or is an infection-control product, a clinical product or a medical device. Nothing here is clinical, facilities, plumbing or HVAC advice. Treatment rooms, procedure rooms and consultation cabins are unscented, and the treating clinician decides what may be in the air anywhere in your building - their decision overrides every line of this checklist.
Quick answers — read this first
What should a doctor evaluate first before installing commercial scenting? The building, not the machine, and the first line is arithmetic. Measure the reception and waiting area - floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. A 400 sq ft reception at a 10 ft ceiling is 4,000 cubic feet, about 113 cubic metres; at 700 sq ft and 10 ft it is 7,000 cubic feet, about 198. Then count the doors that genuinely stay shut during working hours, because a coverage rating assumes one connected body of air and fragrance does not travel through a closed door, so each shut door ends one volume and begins another. Then ask what the place already smells of and whether that source is fixed, because a register over an existing smell gives you both at once.What is the question most practices skip? Who owns the setting. Name a person, today, before anything is ordered. A level that belongs to nobody drifts upward within months, and the cause is mechanical rather than careless: the people able to adjust it are the people who have adapted to it and can no longer detect it, so each honest small increase becomes the new baseline. The defence is a written card kept with the unit - unit, register, exact setting, hours, date, who set it - a monthly check by somebody who has been outside ten minutes and does not work in the building, and a rule that lowering is free while raising requires a written reason and a date. If you cannot name that person, the honest answer is not yet.
When is the honest answer to buy nothing? More often than a supplier will admit. When there is no enclosed customer-facing volume - an open front, or a waiting area that is really a widened corridor serving the whole floor. When a source is unresolved - waste, linen, the sluice, drainage, disinfectant dosing, an air conditioning system nobody has serviced, or a fit-out still off-gassing. When nobody will own the setting. When your clinical leadership has not been asked, or has said no. And when the money would do more good on the extract fan, the acoustics or the seating, which in a lot of premium practices it would. Any one of those makes the answer not yet, and not yet is a real answer rather than a polite refusal.
The short answer
Short answer: Evaluate the building before the machine, and finish with the product rather than starting with it. Part one is the building. Measure the reception and waiting area: floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres, so 400 sq ft at a 10 ft ceiling is 4,000 cubic feet or about 113 cubic metres, 700 sq ft at 10 ft is 7,000 cubic feet or about 198, and 1,000 sq ft at 10 ft is 10,000 cubic feet or about 283, against a SOSA Vaayu at Rs 11,999 published for approximately 1000 cubic metres of connected air. Count how many separate volumes the plan really has by marking every door that genuinely stays shut during working hours, because a coverage rating assumes one connected body of air and fragrance does not travel through a closed door. Establish whether the front door or shutter opens onto the street, since the first few feet of an open-fronted space are effectively outdoor air. Ask what the place already smells of and whether the source is fixed, working through waste and how often it leaves the building, sharps and dressing bins, linen, the sluice or utility area and whether its extract has actually been tested, disinfectant dosing and dilution where more product is often the cause rather than the cure, drainage traps that may dry out in a hot dry April and May, and a recent fit-out that may still be off-gassing. Establish what the air conditioning actually is and when it was last serviced, including filters, coils and the condensate tray, which matters in both of this city's damp stretches, the July and August monsoon and the cool damp winter from late November to February when the building is closed up and fog is common in December and January. Part two is the people. Name the person who will own the setting and keep a written card recording unit, register, exact setting, hours, date and who set it, with a monthly check by somebody who has been outside for ten minutes and does not work in the building, asked an open question rather than one that names the fragrance. Establish what the clinical leadership says about every area past reception, remembering that treatment rooms, procedure rooms and consultation cabins are unscented and the treating clinician decides what may be in the air anywhere, overriding every recommendation. Establish how a patient or a member of staff reports a problem, and adopt the rule that any report lowers the level or switches the unit off that day with no justification required, and that anyone on the desk can switch a named unit off without asking a manager. Only then part three, the product, which is the shortest section: an ultrasonic such as a Boond at Rs 899 or a Sukoon at Rs 1,899 running the water-based Hotel Collection from Rs 299, a reed diffuser from Rs 749 with no plug and nothing to schedule, or the Vaayu where the connected customer-facing volume is genuinely large or the app and timer are the real value. Be willing to conclude not yet, which is a real answer. No claim is made that scent affects appointments, enquiries, footfall, retention or any business result; the ceiling is improved evaluations of a space and its service, longer dwell and stronger recall, at moderate effect sizes. Fragrance adds scent and never removes odour, and ventilation is never reduced so a fragrance lasts longer.
The machine: SOSA Vaayu ₹11,999 - waterless cold-air, approx 1000 m3 of connected air, app and timer.
The fragrance: the water-based Hotel Collection from ₹299 for the SOSA ultrasonics.
In this guide
A coverage rating assumes one connected body of air. In a long-established business the hardest question is not which register but how little you can get away with: a room your customers already know is an asset, and the failure mode is a regular walking in and thinking something has changed.
The commercial machine
SOSA Vaayu · ₹11,999
The fragrance
Hotel Collection · from ₹299
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Straight answer
What is the actual checklist, in order, before a premium practice installs anything?
One: measure the volume, in cubic metres, of the part of the building you would actually scent. Not the practice - the reception and waiting area. Floor area multiplied by ceiling height gives cubic feet; divide by 35.3 for cubic metres. A 400 sq ft reception at 10 ft is 4,000 cubic feet, about 113 cubic metres. At 700 sq ft and 10 ft it is 7,000 cubic feet, about 198. A generous waiting floor at 1,000 sq ft and 10 ft is 10,000 cubic feet, about 283. Write the number down, because it is the number every subsequent conversation should be about, and because it usually turns out to be far smaller than the machine somebody wants to sell you. The Vaayu at ₹11,999 is published for approximately 1000 cubic metres of connected air.
Two: count the volumes, by counting the doors that actually stay shut. Walk the plan with a pen and mark every door that is genuinely closed during working hours. Each one ends a volume and begins another, because a coverage rating assumes one connected body of air and fragrance cannot travel through a closed door. This is the step that turns "treatment rooms are unscented" from an intention into a fact. If your consultation cabins and treatment rooms open off a corridor behind a door that closes, you have a real boundary; if reception opens into an unbroken open-plan space that serves the whole floor, you do not, and the whole connected area should be treated the way its strictest part is treated. While you are there, look at the front: if a door or shutter stands open onto the street, the first few feet of your practice are effectively outdoor air, which means placing deeper into the room and expecting nothing at the threshold. It is never a reason to seal anything.
Three: ask what the place already smells of, and whether that source is fixed. Do the morning walk - before staff, before the first patient, before cleaning, before the air conditioning has run - because that is the building at its most honest. If you meet something, the checklist stops here until it is dealt with, and the list to work through is waste and how often it leaves the building rather than just the room, sharps and dressing bins and whether they are changed on a schedule rather than when full, linen in open bags or uncovered trolleys, the sluice or utility area and whether its extract has actually been tested with a tissue at the grille, disinfectant dosing and dilution where more product is very often the cause, drainage traps that may have dried out, and any recent fit-out that may still be off-gassing. Fragrance adds scent and never removes odour, so a register on top of any of that gives you both at once and the combination reads worse than the original.
Four: establish what your air conditioning actually is, and when it was last serviced. Filters, coils, condensate tray, and the date. In a lot of premium practices nobody in the building can answer that, which is itself the finding. It matters here more than in most cities because Lucknow gives a building two damp stretches rather than one - the July and August monsoon, and a genuinely cold and damp winter from late November to February with fog common through December and January - separated by a hot dry April and May when the year's humidity trough falls in the hottest months. A system serviced on somebody else's calendar is doing quite different work across that year. It also matters for placement, because output dropped into a supply airstream is carried away and thinned before it reaches the room, and in a ducted building can be carried where you did not intend.
Five: name the person who owns the setting. Today, before anything is ordered. Their job is a written card kept with the unit - unit, register, exact setting, hours, date, who set it - a monthly check by somebody who has been outside for at least ten minutes and does not work in the building, asked an open question about what they notice rather than one that names the fragrance, and a rule that lowering is free for anybody while raising requires a written reason and a date. If you cannot name that person, stop: the answer is not yet.
Six: ask your clinical leadership about every area past reception, and treat the answer as final. Treatment rooms, procedure rooms and consultation cabins are unscented as a default, and what may be in the air anywhere in your building is the treating clinician's decision rather than a supplier's recommendation. If they extend that to reception as well, that is a legitimate and common outcome and the rest of this document still has value, because most of it is about the room rather than the air.
Seven: decide how a patient or a member of staff reports a problem, and what happens when they do. The rule that works is short: any report from any member of staff or any patient means the level comes down or the unit goes off that day, with no justification required and no discussion afterwards, and anyone on the desk can switch a named unit off without asking a manager. Staff stand in that air eight to ten hours and frequently attending patients accumulate exposure closer to a staff member's than a visitor's, and both groups are poor judges of the level because adaptation is real. A report is a recalibration signal rather than a tolerance problem. Only when all seven are answered is it time to look at a machine at all - and finishing this list and deciding not yet is a real and frequently correct outcome. A portion of every SOSA order supports girl-child education through Nanhi Kali.
Two: count the volumes, by counting the doors that actually stay shut. Walk the plan with a pen and mark every door that is genuinely closed during working hours. Each one ends a volume and begins another, because a coverage rating assumes one connected body of air and fragrance cannot travel through a closed door. This is the step that turns "treatment rooms are unscented" from an intention into a fact. If your consultation cabins and treatment rooms open off a corridor behind a door that closes, you have a real boundary; if reception opens into an unbroken open-plan space that serves the whole floor, you do not, and the whole connected area should be treated the way its strictest part is treated. While you are there, look at the front: if a door or shutter stands open onto the street, the first few feet of your practice are effectively outdoor air, which means placing deeper into the room and expecting nothing at the threshold. It is never a reason to seal anything.
Three: ask what the place already smells of, and whether that source is fixed. Do the morning walk - before staff, before the first patient, before cleaning, before the air conditioning has run - because that is the building at its most honest. If you meet something, the checklist stops here until it is dealt with, and the list to work through is waste and how often it leaves the building rather than just the room, sharps and dressing bins and whether they are changed on a schedule rather than when full, linen in open bags or uncovered trolleys, the sluice or utility area and whether its extract has actually been tested with a tissue at the grille, disinfectant dosing and dilution where more product is very often the cause, drainage traps that may have dried out, and any recent fit-out that may still be off-gassing. Fragrance adds scent and never removes odour, so a register on top of any of that gives you both at once and the combination reads worse than the original.
Four: establish what your air conditioning actually is, and when it was last serviced. Filters, coils, condensate tray, and the date. In a lot of premium practices nobody in the building can answer that, which is itself the finding. It matters here more than in most cities because Lucknow gives a building two damp stretches rather than one - the July and August monsoon, and a genuinely cold and damp winter from late November to February with fog common through December and January - separated by a hot dry April and May when the year's humidity trough falls in the hottest months. A system serviced on somebody else's calendar is doing quite different work across that year. It also matters for placement, because output dropped into a supply airstream is carried away and thinned before it reaches the room, and in a ducted building can be carried where you did not intend.
Five: name the person who owns the setting. Today, before anything is ordered. Their job is a written card kept with the unit - unit, register, exact setting, hours, date, who set it - a monthly check by somebody who has been outside for at least ten minutes and does not work in the building, asked an open question about what they notice rather than one that names the fragrance, and a rule that lowering is free for anybody while raising requires a written reason and a date. If you cannot name that person, stop: the answer is not yet.
Six: ask your clinical leadership about every area past reception, and treat the answer as final. Treatment rooms, procedure rooms and consultation cabins are unscented as a default, and what may be in the air anywhere in your building is the treating clinician's decision rather than a supplier's recommendation. If they extend that to reception as well, that is a legitimate and common outcome and the rest of this document still has value, because most of it is about the room rather than the air.
Seven: decide how a patient or a member of staff reports a problem, and what happens when they do. The rule that works is short: any report from any member of staff or any patient means the level comes down or the unit goes off that day, with no justification required and no discussion afterwards, and anyone on the desk can switch a named unit off without asking a manager. Staff stand in that air eight to ten hours and frequently attending patients accumulate exposure closer to a staff member's than a visitor's, and both groups are poor judges of the level because adaptation is real. A report is a recalibration signal rather than a tolerance problem. Only when all seven are answered is it time to look at a machine at all - and finishing this list and deciding not yet is a real and frequently correct outcome. A portion of every SOSA order supports girl-child education through Nanhi Kali.
The one-line version: volume, doors, the front, the smell, the air conditioning, the owner of the setting, the clinical decision, and the reporting rule - and only then a product, which is the shortest conversation of the eight.
If you do one thing this week, walk the practice twice with a tape measure and a pen: once at seven in the morning before anybody has been in, and once in your busiest hour. The first walk tells you what the building smells of, because everything has had all night to accumulate and nothing has been disturbed. The second tells you how long people actually stay, how many doors are genuinely shut when the practice is working rather than when it is quiet, and whether the waiting area is a room or a corridor. Those two walks answer more of this checklist than any supplier visit will.
A note on the number that decides everything. Most single-site premium practices come out between about 113 and 283 cubic metres of connected customer-facing air, against a Vaayu published for approximately 1000 cubic metres. That is a ninth to a third of the rating, and it produces the finding that runs through this entire bank: the machine is not your constraint, the setting is. Which in turn means the honest recommendation for a lot of practices is much smaller than the enquiry assumed - a Boond at ₹899 or a Sukoon at ₹1,899 with the water-based Hotel Collection from ₹299, or a passive reed from ₹749, or nothing this year.
Then write the year down, because in Lucknow one setting is really three. April and May are hot and genuinely dry, with the mean daily maximum in May near 39.9 degrees C and the year's humidity trough in those same hottest months, so air conditioning runs hard and the room turns its air over quickly. July and August are the wet months, roughly 238 and 242 mm, when people arrive wet and the entrance does a lot of work. Late November to February is cold and damp together - January mean minima near 7.8 degrees C, days reaching only about 21.4, a record low of minus 1.0, fog common through December and January - and the building is closed up for much more of the day, so the same output sits in the room longer. Three written settings on one card, one register, never a second register. And write the winter setting lowest, because that is the season with the most accumulation and the least contrast for the people who are inside all day.
Finally, the question to ask any supplier, including SOSA, and the answer to listen for. Ask them for the cubic metres of your reception and what setting they would run in it. If the answer is a machine model and a coverage figure from a brochure without your number in it, they have not evaluated your building. If the answer includes "you may not need this" or "fix that first", you are talking to somebody who will still be useful to you in year two. Ambient scent research supports improved evaluations of a space and its service, longer dwell and stronger recall, at moderate effect sizes - and nobody who tells you more than that is telling you the truth.
If you do one thing this week, walk the practice twice with a tape measure and a pen: once at seven in the morning before anybody has been in, and once in your busiest hour. The first walk tells you what the building smells of, because everything has had all night to accumulate and nothing has been disturbed. The second tells you how long people actually stay, how many doors are genuinely shut when the practice is working rather than when it is quiet, and whether the waiting area is a room or a corridor. Those two walks answer more of this checklist than any supplier visit will.
A note on the number that decides everything. Most single-site premium practices come out between about 113 and 283 cubic metres of connected customer-facing air, against a Vaayu published for approximately 1000 cubic metres. That is a ninth to a third of the rating, and it produces the finding that runs through this entire bank: the machine is not your constraint, the setting is. Which in turn means the honest recommendation for a lot of practices is much smaller than the enquiry assumed - a Boond at ₹899 or a Sukoon at ₹1,899 with the water-based Hotel Collection from ₹299, or a passive reed from ₹749, or nothing this year.
Then write the year down, because in Lucknow one setting is really three. April and May are hot and genuinely dry, with the mean daily maximum in May near 39.9 degrees C and the year's humidity trough in those same hottest months, so air conditioning runs hard and the room turns its air over quickly. July and August are the wet months, roughly 238 and 242 mm, when people arrive wet and the entrance does a lot of work. Late November to February is cold and damp together - January mean minima near 7.8 degrees C, days reaching only about 21.4, a record low of minus 1.0, fog common through December and January - and the building is closed up for much more of the day, so the same output sits in the room longer. Three written settings on one card, one register, never a second register. And write the winter setting lowest, because that is the season with the most accumulation and the least contrast for the people who are inside all day.
Finally, the question to ask any supplier, including SOSA, and the answer to listen for. Ask them for the cubic metres of your reception and what setting they would run in it. If the answer is a machine model and a coverage figure from a brochure without your number in it, they have not evaluated your building. If the answer includes "you may not need this" or "fix that first", you are talking to somebody who will still be useful to you in year two. Ambient scent research supports improved evaluations of a space and its service, longer dwell and stronger recall, at moderate effect sizes - and nobody who tells you more than that is telling you the truth.
For one enclosed viewing room, a SOSA Sukoon at ₹1,899 running the water-based Hotel Collection from ₹299 is usually the whole purchase. For a connected retail floor, the waterless SOSA Vaayu at ₹11,999 is the commercial answer.
Vaayu ₹11,999
The document, in three parts - your building, your people, and only then the product
The document is in three parts and the order is load-bearing. Part one is the building - volume, doors, the front, the existing smell, the air conditioning. Part two is the people - who owns the setting, what the clinical leadership has decided, and how anybody raises a problem. Part three is the product, which is deliberately last and deliberately short.
Reversing that order is the single commonest mistake in this category and it is easy to see why: the product is the part with pictures and a price, so it is the part an enquiry starts with. But a machine chosen before the volume is known is a guess, a machine installed before the source is fixed makes the room worse, and a machine with no named owner drifts upward within months. Every disappointing installation I have been asked to look at failed in part one or part two, and none of them failed because the machine was wrong.
Do the arithmetic before anything else, and keep the numbers with you. Floor area multiplied by ceiling height gives cubic feet; cubic feet divided by 35.3 gives cubic metres. A reception of 400 sq ft at 10 ft is 4,000 cubic feet, about 113 cubic metres. At 700 sq ft and 10 ft, 7,000 cubic feet, about 198. At 1,000 sq ft and 10 ft, 10,000 cubic feet, about 283. A treatment room at 120 sq ft and 9 ft is 1,080 cubic feet, about 31, and a consultation cabin at 100 sq ft and 9 ft is 900 cubic feet, about 25 - both unscented, listed here so you can see how small the clinical rooms are and why they are treated the way they are. A SOSA Vaayu at ₹11,999 is published for approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly.
The word connected is what makes those numbers meaningful. A coverage rating assumes one connected body of air and fragrance does not travel through a closed door, so the relevant figure is not your practice's total area but the cubic metres of the customer-facing part that is genuinely joined together during working hours. Mark the doors. In a clinic the plan is usually full of them, and that is a feature: it is exactly what lets a reception have a character while treatment rooms, procedure rooms and cabins have nothing.
And one rule that sits over the whole document and is never traded away: never reduce ventilation, close a vent, disable an extract or hold a door shut so that a fragrance lasts longer. Not in a closed-up foggy January, not in a wet August, in no phrasing and for no reason. If a room is well ventilated and therefore harder to scent, the answer is placement, a lower setting and a schedule - never less air.
1
Part one
Your building - the volume, the doors, the front, the smell and the air conditioning
1.1 The connected volume of the part you would scent. Measure the reception and waiting area and convert to cubic metres. Write the number on the first line of the document. Every later conversation, with every supplier, should contain that number; if one does not, the supplier is quoting a brochure rather than evaluating your practice.
1.2 How many separate volumes the plan really has. Mark every door that genuinely stays shut during working hours - genuinely, as observed in your busiest hour rather than as intended. Each shut door ends one volume and begins another. This is what makes "treatment rooms are unscented" a fact rather than a label. Note also any door that is propped open in practice, because that door is not a boundary.
1.3 The front. Sealed door with a closer, a lobby, an air curtain, or a shutter that stands open onto the street. If the front is open, the first few feet of your practice are effectively outdoor air and no machine or setting changes that: place deeper into the room and expect nothing at the threshold. Never seal a building for fragrance reasons.
1.4 What the place already smells of, and whether the source is fixed. Do the morning walk before staff, patients, cleaning and the air conditioning. If you meet anything, the document stops here. Work through waste and how often it leaves the building rather than just the room; sharps and dressing bins and whether they are changed on a schedule rather than when full; linen in open bags or uncovered trolleys; the sluice or utility area and whether its extract holds a tissue at the grille; disinfectant dosing, dilution, contact time and how often cloths and mop heads are changed, remembering that more product is very often the cause rather than the cure; drainage traps that may have dried out, which is a live possibility in a hot dry April and May when the year's humidity trough falls in the hottest months; and any recent fit-out still off-gassing. Fragrance adds scent and never removes odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air or is an infection-control product.
1.5 What the air conditioning actually is, and when it was last serviced. Split units, ducted, a central system - and the date of the last service, including filters, coils and the condensate tray. If nobody in the building knows, that is the finding. This matters for placement, because output dropped into a supply airstream is carried away and thinned before it reaches the room and in a ducted building may be carried somewhere you did not intend. It matters seasonally too, because this city has two damp stretches rather than one: the July and August monsoon, roughly 238 and 242 mm, and a cold damp winter from late November to February with fog common through December and January.
1.6 The seasonal note. Write down what the building does in each of the three stretches - hot and dry, wet, cold and closed up - because one setting will not serve all three and because a level set in a fast-moving May room will be a different level in a shut January one.
1.2 How many separate volumes the plan really has. Mark every door that genuinely stays shut during working hours - genuinely, as observed in your busiest hour rather than as intended. Each shut door ends one volume and begins another. This is what makes "treatment rooms are unscented" a fact rather than a label. Note also any door that is propped open in practice, because that door is not a boundary.
1.3 The front. Sealed door with a closer, a lobby, an air curtain, or a shutter that stands open onto the street. If the front is open, the first few feet of your practice are effectively outdoor air and no machine or setting changes that: place deeper into the room and expect nothing at the threshold. Never seal a building for fragrance reasons.
1.4 What the place already smells of, and whether the source is fixed. Do the morning walk before staff, patients, cleaning and the air conditioning. If you meet anything, the document stops here. Work through waste and how often it leaves the building rather than just the room; sharps and dressing bins and whether they are changed on a schedule rather than when full; linen in open bags or uncovered trolleys; the sluice or utility area and whether its extract holds a tissue at the grille; disinfectant dosing, dilution, contact time and how often cloths and mop heads are changed, remembering that more product is very often the cause rather than the cure; drainage traps that may have dried out, which is a live possibility in a hot dry April and May when the year's humidity trough falls in the hottest months; and any recent fit-out still off-gassing. Fragrance adds scent and never removes odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air or is an infection-control product.
1.5 What the air conditioning actually is, and when it was last serviced. Split units, ducted, a central system - and the date of the last service, including filters, coils and the condensate tray. If nobody in the building knows, that is the finding. This matters for placement, because output dropped into a supply airstream is carried away and thinned before it reaches the room and in a ducted building may be carried somewhere you did not intend. It matters seasonally too, because this city has two damp stretches rather than one: the July and August monsoon, roughly 238 and 242 mm, and a cold damp winter from late November to February with fog common through December and January.
1.6 The seasonal note. Write down what the building does in each of the three stretches - hot and dry, wet, cold and closed up - because one setting will not serve all three and because a level set in a fast-moving May room will be a different level in a shut January one.
Tip: If a supplier's proposal does not contain the cubic metres of your reception, they have quoted a brochure rather than evaluated your building.
2
Part two
Your people - who owns the setting, what the clinicians decide, and how anyone reports a problem
2.1 Name the owner of the setting. One person, named today, before anything is ordered. Their responsibilities are specific and small: keep a written card with the unit recording the unit, the register, the exact setting, the hours, the date it was set and who set it; run the monthly check; and enforce the rule about raising. If nobody can be named, the honest answer for this year is not yet, and that is a complete answer rather than a delay tactic.
2.2 The monthly check. By somebody who has been outside for at least ten minutes and does not work in the building, asked an open question - what do you notice about this room - never "can you smell the fragrance", which plants the answer and gets you a yes. If they can name what the room smells of, it is too high for a clinic. The target is that they say the place seems well kept and cannot say why. Put it in the diary as a recurring item, because a monthly discipline that relies on memory is an annual one at best.
2.3 The rule on raising and lowering. Lowering is free: anybody, any time, no reason. Raising requires a new written line with a reason and a date, plus an outside-nose check before it stands. This is the anti-drift rule and it exists because drift is mechanical rather than careless - the people able to adjust a level are the people who have adapted to it and honestly cannot detect it, so each small sincere increase becomes the new baseline and by month four the practice runs at a level no arriving patient would have chosen.
2.4 What your clinical leadership says about every area past reception. Ask them, formally, and write the answer into the document. The default position is that treatment rooms, procedure rooms and consultation cabins are unscented, and the governing principle is that the treating clinician decides what may be in the air anywhere in the building - overriding every recommendation from any supplier, including this page. If they extend the decision to reception as well, that is legitimate and common, and the rest of the document is still worth working through, because most of it is about the room rather than the air.
2.5 How a patient or a member of staff reports a problem. Decide the route and say it out loud: who they tell, and what happens next. The rule that works is that any report from any member of staff or any patient means the level comes down or the unit goes off that day, with no justification required, nobody asked whether they are certain and nobody told that others find it fine. A report is a recalibration signal rather than a tolerance problem, and a practice that treats it as the latter teaches people to stop reporting. SOSA makes no health or allergy claim in either direction, and this rule stands regardless of cause.
2.6 The switch. Physical, reachable from the desk, known about, and operable by anyone without asking a manager or explaining afterwards. If permission is required, the switch does not exist in practice. Staff stand in that air eight to ten hours a day and are the most exposed people in the building; frequently attending patients accumulate exposure closer to a staff member's than a visitor's. Both groups cap the level, downward.
2.2 The monthly check. By somebody who has been outside for at least ten minutes and does not work in the building, asked an open question - what do you notice about this room - never "can you smell the fragrance", which plants the answer and gets you a yes. If they can name what the room smells of, it is too high for a clinic. The target is that they say the place seems well kept and cannot say why. Put it in the diary as a recurring item, because a monthly discipline that relies on memory is an annual one at best.
2.3 The rule on raising and lowering. Lowering is free: anybody, any time, no reason. Raising requires a new written line with a reason and a date, plus an outside-nose check before it stands. This is the anti-drift rule and it exists because drift is mechanical rather than careless - the people able to adjust a level are the people who have adapted to it and honestly cannot detect it, so each small sincere increase becomes the new baseline and by month four the practice runs at a level no arriving patient would have chosen.
2.4 What your clinical leadership says about every area past reception. Ask them, formally, and write the answer into the document. The default position is that treatment rooms, procedure rooms and consultation cabins are unscented, and the governing principle is that the treating clinician decides what may be in the air anywhere in the building - overriding every recommendation from any supplier, including this page. If they extend the decision to reception as well, that is legitimate and common, and the rest of the document is still worth working through, because most of it is about the room rather than the air.
2.5 How a patient or a member of staff reports a problem. Decide the route and say it out loud: who they tell, and what happens next. The rule that works is that any report from any member of staff or any patient means the level comes down or the unit goes off that day, with no justification required, nobody asked whether they are certain and nobody told that others find it fine. A report is a recalibration signal rather than a tolerance problem, and a practice that treats it as the latter teaches people to stop reporting. SOSA makes no health or allergy claim in either direction, and this rule stands regardless of cause.
2.6 The switch. Physical, reachable from the desk, known about, and operable by anyone without asking a manager or explaining afterwards. If permission is required, the switch does not exist in practice. Staff stand in that air eight to ten hours a day and are the most exposed people in the building; frequently attending patients accumulate exposure closer to a staff member's than a visitor's. Both groups cap the level, downward.
3
Part three
Only now the product - and how to finish the document with 'not yet'
3.1 Which system, and they are not interchangeable. The ultrasonics - Boond ₹899, Sukoon ₹1,899 and Megh ₹3,499 with its 6 litre tank - are water-based cool-mist machines running the Hotel Collection from ₹299, with 100ml refills at ₹999 and 300ml also available. The Vaayu ₹11,999 and the ducted Aangan ₹25,999 and Meenar ₹38,500 run waterless nebulising oil. The ₹299 water-based bottle never goes into a Vaayu or an HVAC machine. And the reed diffusers from ₹749 are passive with their own registers - no plug, no noise, nothing to schedule, removed by picking them up, lasting about 6 to 10 weeks.
3.2 Which one your number points to. A 113 cubic metre reception is roughly a ninth of the Vaayu's published rating, which means for a lot of single-site practices the answer is an ultrasonic or a reed rather than a commercial machine. The Vaayu earns its place when the connected customer-facing volume is genuinely large, or several connected waiting areas add up, or when the Bluetooth app and timer is the real value - because it turns your three seasonal settings and your trading-hours-only running into a written setting rather than somebody's habit. Its published specification: waterless cold-air nebulising, approximately 1000 cubic metres of connected air, 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so it needs a live socket, CE, RoHS and SGS.
3.3 Placement, which is a product question people forget. Out of any air conditioning supply airstream. Away from the entrance. Deep into the room rather than at the threshold. Out of reach and out of sight. Near a live socket, which is worth deciding at the same time as everything else if you are mid-fit-out.
3.4 What is not published, and must not be estimated. SOSA does not publish consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time, and no honest page invents one, not even as a range. Those go to WhatsApp at +91 96192 18531. Note that this also means nobody can build you a running-cost model, which is worth remembering if somebody offers you one.
3.5 And the ending the document should be willing to reach. Not yet. Buy nothing this year if any of these is true: there is no enclosed customer-facing volume; a source is unresolved; the air conditioning has not been serviced and nobody knows when it last was; nobody will own the setting; the clinical leadership has not been asked or has said no; or the same money would do more good on the sluice extract, the acoustics of the waiting room or the seating. In a lot of premium practices at least one of those is true, and saying so is not a failure of the exercise - it is the exercise working. A supplier who never reaches "not yet" about anybody is selling rather than advising, and that is worth knowing about whoever you are talking to.
3.2 Which one your number points to. A 113 cubic metre reception is roughly a ninth of the Vaayu's published rating, which means for a lot of single-site practices the answer is an ultrasonic or a reed rather than a commercial machine. The Vaayu earns its place when the connected customer-facing volume is genuinely large, or several connected waiting areas add up, or when the Bluetooth app and timer is the real value - because it turns your three seasonal settings and your trading-hours-only running into a written setting rather than somebody's habit. Its published specification: waterless cold-air nebulising, approximately 1000 cubic metres of connected air, 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so it needs a live socket, CE, RoHS and SGS.
3.3 Placement, which is a product question people forget. Out of any air conditioning supply airstream. Away from the entrance. Deep into the room rather than at the threshold. Out of reach and out of sight. Near a live socket, which is worth deciding at the same time as everything else if you are mid-fit-out.
3.4 What is not published, and must not be estimated. SOSA does not publish consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time, and no honest page invents one, not even as a range. Those go to WhatsApp at +91 96192 18531. Note that this also means nobody can build you a running-cost model, which is worth remembering if somebody offers you one.
3.5 And the ending the document should be willing to reach. Not yet. Buy nothing this year if any of these is true: there is no enclosed customer-facing volume; a source is unresolved; the air conditioning has not been serviced and nobody knows when it last was; nobody will own the setting; the clinical leadership has not been asked or has said no; or the same money would do more good on the sluice extract, the acoustics of the waiting room or the seating. In a lot of premium practices at least one of those is true, and saying so is not a failure of the exercise - it is the exercise working. A supplier who never reaches "not yet" about anybody is selling rather than advising, and that is worth knowing about whoever you are talking to.
Tip: Finish the document honestly. If any of part one or part two is outstanding, the answer is not yet - and not yet is a real answer, not a polite refusal.
Do it in this order
The pre-purchase checklist for a premium Lucknow practice, in order
- Measure the reception: area times ceiling height, then divide by 35.3.
- Count the doors that genuinely stay shut - each one ends a volume.
- Ask what the place already smells of, and fix that before anything else.
- Name the owner of the setting and the way anyone reports a problem.
The SOSA principle
Work through your own building before you look at a single machine: the connected volume, the doors, what it already smells of, the air conditioning, who will hold the setting, and what your clinical leadership says about everything past reception. A good number of practices that do this honestly finish the page and decide not yet - and not yet is a real answer.
The limits on this page, stated rather than buried. No claim is made that a scent affects appointments, enquiries, footfall, patient numbers, referrals, recommendations, retention, fees or any other business result, and no return-on-investment or running-cost model is offered or implied. The honest ceiling is improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes. No claim is made about what a fragrance does to a person, in any phrasing. No SOSA product is a medical device, a clinical product, an infection-control product, an air purifier, a dehumidifier or an air-treatment device, and nothing on this page is clinical, facilities, plumbing, housekeeping or HVAC advice: treatment rooms, procedure rooms and consultation cabins are unscented, and the treating clinician decides what may be in the air anywhere in the building, overriding every line of this checklist. Fragrance adds scent and does not remove, neutralise, absorb, deodorise, dry or purify odour; source, then ventilation, then cleaning, then fragrance, always. Ventilation is never reduced for any reason connected to fragrance. SOSA does not publish consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order or lead time, and none is estimated here. Descriptions of Lucknow's seasons are general and qualitative and come from published sources about the city, not from any claim about your premises.
The product questions, which come last and are the shortest section here
If parts one and two came back clean and your clinical leadership has permitted a reception register, this is the short part.
The level is the decision and the register is a detail. Set for the longest-staying patient on their tenth visit rather than for the doorway on somebody's first, with staff capping it at eight to ten hours a day in the same room. Write it down the moment it is right. Then judge it with a nose from outside, on an open question.
The shortlist. There are seven registers in the water-based Hotel Collection, each SOSA's own hotel-inspired interpretation; SOSA is independent and not affiliated with, endorsed by or connected to any hotel brand. White Tea Serenity is white tea, aloe and cedar - clean, weightless and the register that most readily reads as clean rather than as scented, which is the right target in a medical setting and the default I would give a practice with one decision and no further information. Quiet Luxury is white tea, bergamot and cedar - hushed, polished and unsweet, for a reception being experienced as a premium room with upholstery, joinery and lower-level lighting. Forest Suite is cedarwood, vetiver and green leaves, the driest of the three and the one most likely to be received as a property of the building rather than as a decision somebody made.
What I would keep out of a clinic reception. Old-World Glamour is amber, violet and woods, plush and evening-elegant, and plush accumulates across a long wait in a way dry does not. Lobby Bar is citrus, pepper and amber, bold and after-dark by design; turned down it is a quiet theatrical register rather than an inconspicuous one. Warm Welcome is citrus, floral and sandalwood, a hotel-threshold register and a context mismatch here. Tea Garden is jasmine, green tea and white tea, the least risky floral in the collection - and in a clinic a floral of any weight reads as a cover, which is the impression a well-kept practice should least want to give.
I will not rank the seven against each other on measured throw or longevity: SOSA does not publish that comparison, and the variables that dominate belong to your building rather than to the blend. There is no "traditional Indian", attar, oudh or rose-water register in the commercial range - the machines run these seven and nothing else. Bespoke composition is a real SOSA service, discussed on WhatsApp rather than priced on a page, and the cheaper honest answer comes first: one of the seven held at the same written setting every working day already is a signature, because consistency makes a signature and uniqueness does not. In a practice people return to, that consistency is the entire product.
And the boundary, which is the last line of the document. Reception and waiting only. Treatment rooms, procedure rooms, consultation cabins, the sluice, stores and clinical corridors get nothing, and the treating clinician decides what may be in the air anywhere in your building.
The SOSA scent edit
The register shortlist for a premium clinic reception - and the row that closes the document
| Scent | Why it suits the mood |
|---|---|
| White Tea Serenity · the default for a medical setting | White tea, aloe and cedar. Clean, weightless and spa-like, and the register that most readily reads as clean rather than as scented - what I would give a practice with one decision and no further information about the building. Reception only, lowest workable setting, written on the card, judged by a nose from outside. |
| Quiet Luxury · a reception read as a premium room | White tea, bergamot and cedar. Hushed, polished and unsweet, for a waiting room with upholstery, joinery and lower-level lighting where the space is being experienced as premium rather than clinical. It carries a small amount of presence without becoming the thing a patient thinks about on their tenth visit. |
| Forest Suite · timber, stone and a quiet building | Cedarwood, vetiver and green leaves. The driest of the shortlist and the one that reads as structural rather than decorative, so it is received as a property of the building. Dryness is also the property that survives long exposure best in a room where staff spend eight to ten hours a day. |
| Not yet · the honest ending for a good number of practices | Not a smaller machine - nothing this year. If there is no enclosed customer-facing volume, a source is unresolved, the air conditioning service date is unknown, nobody will own the setting, or the clinical leadership has not been asked, the document ends here. Spend the money on the sluice extract, the acoustics or the seating, and revisit when part one and part two are clean. |
The product section, in one paragraph, because it is genuinely the shortest part. For one reception an ultrasonic is usually the whole purchase: a SOSA Boond at ₹899 or a SOSA Sukoon at ₹1,899, running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999 and 300ml also available, or a SOSA Megh at ₹3,499 with its 6 litre tank for a larger waiting floor running all day. The pack of seven 15ml bottles at ₹1,799 is how to audition registers in your own air rather than from a description, judged on day five rather than the first afternoon. And the SOSA reed diffusers are a serious clinic option precisely because they are passive - Mountain Breeze ₹849 is the driest, with Morning Freshness ₹749, Garden Bloom ₹799, Evening Calm ₹799 and Fresh Brew ₹849, 130ml from ₹1,249, lasting about 6 to 10 weeks, with nothing to schedule and nothing to switch.
Where the Vaayu belongs. The SOSA Vaayu at ₹11,999 is waterless cold-air nebulising of undiluted oil - no water, no humidity and no wet residue - published for approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. Bluetooth app and timer, 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so it needs a live socket, CE, RoHS and SGS. Buy it when your measured connected customer-facing volume is genuinely large, or when several connected waiting areas add up, or when the app and timer is the real value because you want three written seasonal settings and trading-hours-only running that nobody has to remember. In a city with two damp stretches rather than one, preferring waterless over a water-based cool-mist machine is a plain design preference - never a claim to control humidity, dry a building or treat air, and no SOSA product does any of those things.
To go deeper on the three parts of this document: the exposure problem that sets the level is worked through in how to stop repeat patients and staff experiencing fragrance fatigue; the source list for part one, item four, is in why clinical odours are investigated at source rather than covered with a stronger perfume; and if somebody is building you a cost justification, the reasons to decline it are in whether a high-value, low-footfall clinic can make economic sense of a Vaayu.
What SOSA does not publish, and what this page will therefore not invent even as a range: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time. Send your measured cubic metres, your door plan, your morning-walk notes and your air conditioning service date to WhatsApp at +91 96192 18531 and you will get an answer that includes, where it is the right one, the recommendation to buy nothing this year. Bulk orders are welcome and custom label or logo on product is available.
Seven water-based registers for the ultrasonics - Quiet Luxury, White Tea Serenity, Forest Suite, Old-World Glamour, Tea Garden, Warm Welcome, Lobby Bar.
from ₹299 · 100ml refill ₹999
Waterless cold-air nebulising for approximately 1000 m3 of connected air. Bluetooth app and timer, 400ml tank, mains powered.
₹11,999
No plug, no noise, nothing to switch off - a quiet baseline for a reception desk or a small doored room, with nothing to schedule.
from ₹749 · about 6-10 weeks
Commercial scenting, sized honestly
Send your floor plan, ceiling height and storefront type on WhatsApp and SOSA will tell you if you need one machine or none.
Ask any supplier for the cubic metres of your own reception and the setting they would run in it. If the reply is a model number and a coverage figure from a brochure, they have not evaluated your building - they have quoted one.
— Sonal Sahani, SOSA
The SOSA scenting range
SOSA sells two different systems and one of the commonest mistakes is mixing them up. Size by the connected air volume of the room you are actually scenting - which in a boutique means the connected retail floor plus any viewing room that has a door of its own - floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. A door that stays shut ends one volume and begins another.
The SOSA scenting range
Two different systems - pick by connected air volume, not by room count
| Machine | System | What it is for | Price |
|---|---|---|---|
| SOSA Boond | Ultrasonic · water-based | A small desk or corner unit for one enclosed room - runs the water-based Hotel Collection | ₹899 |
| SOSA Sukoon | Ultrasonic · water-based | A larger ultrasonic for a reception or consultation room - Hotel Collection from ₹299 | ₹1,899 |
| SOSA Megh | Ultrasonic · 6L tank | A large-tank ultrasonic for a bigger lounge that runs all day | ₹3,499 |
| SOSA Vaayu | Waterless cold-air nebulising | The commercial machine - approx 1000 m3 of connected air, Bluetooth app and timer, no water and no humidity | ₹11,999 |
| SOSA Aangan | HVAC nebulising | Ducted scenting for approximately 8,000 to 10,000 sq ft | ₹25,999 |
| SOSA Meenar | HVAC nebulising | Ducted scenting for approximately 12,000 to 18,000 sq ft | ₹38,500 |
Two systems, and they are not interchangeable. The ultrasonics - Boond, Sukoon and Megh - run the water-based Hotel Collection from ₹299. Vaayu and the HVAC machines run waterless nebulising oil; the ₹299 water-based bottle never goes into a Vaayu. SOSA blends are SOSA's own hotel-inspired interpretations and SOSA is independent and not affiliated with any hotel brand. A portion of every order supports girl-child education through Nanhi Kali.
The honest spec sheet
What SOSA publishes, and what SOSA does not
Everything below is on the product pages. Anything not on this list is not something a page should state.
- Vaayu ₹11,999 - waterless cold-air nebulising, approx 1000 m3 connected air, Bluetooth app and timer, 400ml tank, freestanding or wall / HVAC mount, DC 12V / 1A, 5W, mains powered, CE / RoHS / SGS.
- Aangan ₹25,999 for approximately 8,000 to 10,000 sq ft and Meenar ₹38,500 for approximately 12,000 to 18,000 sq ft - both ducted into HVAC.
- The ultrasonics - Boond ₹899, Sukoon ₹1,899, Megh ₹3,499 - run the water-based Hotel Collection from ₹299, with 100ml refills at ₹999.
- Not published, and therefore never stated on this page: consumption rate, refill frequency, monthly running cost, machine lifespan, installation lead time or any minimum order. Those go to WhatsApp +91 96192 18531.
Talk it through before you buy. Send your floor plan and ceiling height, how long a customer actually stays, whether the front is sealed or opens onto the street, what your air conditioning is, whether food is prepared anywhere nearby, and - if the business is an old one - how long your regulars have been coming, to SOSA on WhatsApp at +91 96192 18531. Bulk orders are welcome, and custom label or logo on product is available. Bespoke composition is a real SOSA service and is discussed on WhatsApp rather than priced on a page. Nothing here is clinical, facilities, HVAC, food-safety or building advice: in a clinical space the treating clinician decides what may be in the air, in a food business the kitchen and the applicable food-safety rules decide, and in any building the people responsible for its air decide - and their decision overrides every recommendation on this page.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
Most of what is written about commercial scenting assumes you are building something from nothing - a new brand, an empty room, a customer who has never met you. Almost none of it is written for the business I actually get asked about most often in a city like Lucknow: the one that has been there for thirty years, that people already trust, where the founder's son or daughter is now looking at the place and thinking it should feel more like what it is worth.
That business has a completely different problem, and it is worth naming plainly. You are not trying to create an impression. You are trying not to damage one. A customer who has come to you since before you were running the place has a version of your shop in their head, and it is a good version - that is why they keep coming. If they walk in one morning and the room announces that something has changed, you have spent a real asset to buy a compliment. So my advice to legacy businesses is almost embarrassingly conservative: go so low that nobody remarks on it. Not low as a compromise - low as the specification.
The rest is the same as it always is, and it is the least commercial thing I say. Fragrance adds a smell; it has never once removed one. So if the showroom smells of damp in August, or the lobby carries the kitchen, or the new fit-out is still off-gassing, a machine gives you both smells at once and most people find that worse than the original. Source, then ventilation, then cleaning, and only then a quiet character held at the same level every single day - because in a business built on being the same place it has always been, consistency is the entire product.
Frequently asked questions
What should a doctor evaluate before installing commercial scenting?
The building first and the machine last. Measure the connected volume of reception and waiting in cubic metres. Count the doors that genuinely stay shut during working hours, because each one ends a volume and fragrance cannot travel through a closed door. Note whether the front opens onto the street. Do a morning walk before staff, patients, cleaning and the air conditioning to find out what the place already smells of, and fix any source first. Establish what the air conditioning is and when it was last serviced. Then name who owns the setting, ask the clinical leadership about every area past reception, and decide how anyone reports a problem.
How do I work out what size machine my practice needs?
Floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. A reception of 400 sq ft at a 10 ft ceiling is 4,000 cubic feet, about 113 cubic metres; 700 sq ft at 10 ft is about 198; 1,000 sq ft at 10 ft is about 283. The Vaayu at Rs 11,999 is published for approximately 1000 cubic metres of connected air, so most single-site practices sit between a ninth and a third of the rating. That is why the machine is not the constraint and the setting always is, and why a Boond at Rs 899 or a Sukoon at Rs 1,899 with Hotel Collection from Rs 299, or a reed from Rs 749, is often enough.
Who should decide what goes in the air past reception?
The treating clinician, and their decision overrides any recommendation from a supplier or from a page like this one. The default position is that treatment rooms, procedure rooms and consultation cabins are unscented, with reception and waiting the only areas ever considered, and only where they are a genuinely separate volume behind doors that stay shut. If the clinical leadership extends the decision to reception as well, that is a legitimate and common outcome. No SOSA product is a medical device, a clinical product, an infection-control product or an air-treatment device, and nothing here is clinical advice.
What stops the level creeping up over time?
A named owner and a written card. Record the unit, the register, the exact setting, the hours, the date and who set it, and keep the card with the machine. Check monthly with somebody who has been outside for at least ten minutes and does not work in the building, asked an open question about what they notice rather than one that names the fragrance. Make lowering free for anybody at any time and raising slow, requiring a written reason, a date and an outside check. Drift is mechanical rather than careless, because the people able to adjust the level are the ones who have adapted to it.
When is the honest answer to buy nothing?
When there is no enclosed customer-facing volume, when a source is unresolved, when nobody knows the last air conditioning service date, when nobody will own the setting, when the clinical leadership has not been asked or has said no, or when the same money would do more good on the sluice extract, the acoustics of the waiting room or the seating. Any one of those makes the answer not yet, and not yet is a real answer rather than a polite refusal. A supplier who never reaches that conclusion about anybody is selling rather than advising.
Give the boutique a room people recognise the second time
SOSA — commercial scenting, set for the ninety-minute appointment, not the doorway
Work through the document first, then send SOSA the results: the measured cubic metres of your reception, which internal doors genuinely stay shut in your busiest hour, whether the front opens onto the street, what your morning walk found, what your air conditioning is and when it was last serviced, who will own the setting, and what your clinical leadership has decided about every area past reception. You will get an honest answer, including - where it is the right one - the recommendation to buy nothing this year. Treatment rooms, procedure rooms and cabins are unscented and the treating clinician decides. The Vaayu is ₹11,999 and the water-based Hotel Collection starts at ₹299. Bulk orders are welcome, custom label or logo on product is available, and a portion of every order supports girl-child education through Nanhi Kali.
See the SOSA Vaayu → WhatsApp +91 96192 18531
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About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the buying advice applies to any brand.Facts verified September 2026: SOSA Vaayu ₹11,999 is a waterless cold-air nebulising diffuser rated for approximately 1000 m3 of connected air, with Bluetooth app and timer, a 400ml tank, freestanding or wall / HVAC mounting and a DC 12V / 1A, 5W mains supply. SOSA Aangan ₹25,999 covers approximately 8,000 to 10,000 sq ft and SOSA Meenar ₹38,500 approximately 12,000 to 18,000 sq ft, both ducted into HVAC. The ultrasonic machines - Boond ₹899, Sukoon ₹1,899 and Megh ₹3,499 - run the water-based Hotel Collection fragrance from ₹299, with 100ml refills at ₹999; that water-based bottle is not used in a Vaayu or an HVAC machine. Reed diffusers start at ₹749 and last roughly 6-10 weeks. A coverage rating assumes one connected body of air; scent does not travel through a closed door. Ambient scent research supports improved evaluations of a space and its service, longer dwell and stronger recall at moderate effect sizes - it does not support claims about bookings, fees or retention. Fragrance adds scent and does not remove, neutralise or purify odour, and no SOSA product makes any health, antibacterial or air-purifying claim. No SOSA product is an air-treatment device, an air purifier, a dehumidifier, a humidity-control product or an odour-removal product, and none makes any health, allergy, air-quality or occupational claim. No claim is made here about any effect on a customer, a patient, a purchase, a footfall figure or a business result. Nothing in this guide is clinical, facilities, HVAC, food-safety or building advice: in a clinical space the treating clinician decides what may be in the air, in a food business the kitchen and the applicable food-safety rules decide, and in any building the people responsible for its air and its maintenance decide - and their decision overrides every recommendation here. Descriptions of Lucknow's seasons, localities and crafts are general and qualitative; every figure about a specific building must come from that building. Nothing here claims any association with, or endorsement by, any craft body, heritage authority or local institution. SOSA blends are SOSA's own hotel-inspired interpretations; SOSA is independent and not affiliated with any hotel brand. Prices and availability are subject to change - see the live product pages.