I am writing this as something you can print and keep, because the failure mode in a large building is predictable: a complaint reaches facilities, the complaint names the machine, the machine gets turned up or swapped, and three months later there are two machines and the same complaint. In my experience on campus-scale floors, the machine is the actual cause in a small minority of cases. Nearly always it is a volume that was never calculated, a unit standing in a supply airstream, a door that is shut between the unit and the person complaining, or a nose that has been in the building since eight in the morning.
Two of those deserve calling out now because they are the ones that waste the most money. The first is volume. A floor of 12,000 sq ft at a 10 ft ceiling is 120,000 cubic feet, and 120,000 divided by 35.3 is about 3,400 cubic metres, against a SOSA Vaayu published for approximately 1000 cubic metres of connected air. If nobody did that sum before the unit was specified, "poor performance" is not a fault - it is arithmetic arriving late. The second is the nose. Olfactory adaptation is fast and complete, so the people on the floor all day genuinely cannot smell a constant background, and a report from somebody at half past four is a report about their adaptation as much as about your air. The only reliable observer is somebody who has been outside for ten minutes and has just walked in.
And one boundary before the checklist starts. If the complaint is that a space smells of something rather than that it does not smell of enough, the machine was never the right tool and turning it up will make the diagnosis harder. Fragrance adds scent. It does not remove, neutralise, absorb, mask away or purify odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air. That complaint belongs to source, then ventilation, then cleaning - in that order - and on a floor of this size every one of those already has an owner in your organisation.
Why does fragrance seem to disappear in a large office by the afternoon? Usually two causes at once, and neither is the machine. The first is your own nose: olfactory adaptation is fast and complete, so somebody who has been on the floor since morning stops registering a constant background scent entirely, which is why the afternoon report is often a report about adaptation. The second is air exchange, which is at its most aggressive in a Pune April - the hottest months here are also the driest, the humidity trough falling in February to April, so a floor working its cooling hard is moving and exchanging air faster. The fix is a written seasonal setting and a test nose from outside, not a bigger number.
Our reception smells fine but the meeting rooms do not. Is the machine underpowered? No, that is the system working as designed. A coverage rating assumes one connected body of air and scent does not travel through a closed door, so a meeting room with its door shut is simply a different volume that the reception unit was never going to reach. The question is not how to push through the door - nothing does - but whether that room should be scented at all. Internal meeting rooms used by your own staff should get nothing; a doored client room can have its own small unit set lower than reception, because at about 57 cubic metres it over-scents faster than anything else on the floor.
Check one: the connected volume and the ceiling height, calculated rather than recalled. Take the plan, identify the body of air the unit is actually sitting in - bounded only by doors that are genuinely kept shut - and measure the ceiling in that area rather than assuming it. Then: area multiplied by height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. A 12,000 sq ft floor at 10 ft is 120,000 cubic feet, about 3,400 cubic metres. A reception of 600 sq ft opening onto 9,650 sq ft of workstations is 10,250 sq ft, at 10 ft that is 102,500 cubic feet, about 2,900 cubic metres. A doored reception of 600 sq ft at 10 ft is 6,000 cubic feet, about 170. A 200 sq ft meeting room is 2,000 cubic feet, about 57. Now compare with the published figure: approximately 1000 cubic metres of connected air for a Vaayu. If the volume is two, three or four times that, the unit was never going to produce an even level and no setting changes it. That is not a fault report, it is a specification that skipped a sum.
Check two: placement, which changes more than output does and is free to change. Walk to the unit and look up and around. Is it in or near a supply airstream? If so its output is being picked up, carried away and thinned before it reaches the room, and the room reads weak while the ductwork distributes it somewhere nobody chose. Is it immediately under or beside a return grille? Then a share of what it produces is going straight back into the system. Is it in a dead corner, inside a joinery recess, behind a pillar or under a desk? Then it never reaches the room at all. Is it beside the entrance? Then it is in the door's turbulence and loses output every time the doors cycle - which on a campus building with heavy commuter peaks means long waves of door movement rather than an even trickle. Move it before you touch the setting, and move it once, and observe for a week.
Check three: the doors between the unit and the complaint. Walk the actual path from the unit to the place the complaint came from and count what you pass through. If there is a door that is normally shut, you have found the answer and the machine is innocent: a coverage rating assumes one connected body of air, and scent does not travel through a closed door. A shut door ends one volume and begins another. The correct response is not more output; it is to decide whether that second volume should be scented at all, which for internal meeting rooms, cabins and the pantry is no. Note the grey cases honestly too - a door with a failed closer resting half open, a door propped with a doorstop every afternoon, a door with a large undercut serving as the room's air return.
Check four: whose nose, and how long they had been inside. Ask the person who reported it two questions. When did you notice, and where had you been in the twenty minutes before? Olfactory adaptation is fast and complete: most people stop registering a constant background scent within about twenty minutes of continuous exposure. So a report from somebody who has been on the floor since eight in the morning is partly a report about their own adaptation, and it is the single most common source of the "it has stopped working" ticket. The only reliable observer is somebody who has been outside for ten minutes and has just walked in - a courier, a visitor arriving off the morning commute, a colleague returning from another building. Ask them, ask them the same question every time, and write down what they said next to the date and the setting.
Check five: what the space already smells of, and whether that source is fixed. If the complaint is that a space smells of something rather than that it lacks a scent, the machine is the wrong tool entirely. Fragrance adds scent; it does not remove, neutralise, absorb, mask away, deodorise or purify odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air. Go through the usual office sources: the pantry bin and its emptying cadence, a dried-out drain trap in a lightly used washroom or cleaner's sink, food in desk drawers, an unowned fridge, a damp store cupboard, a mop living wet in a closed room, carpet behaving differently in a wet month, a plant room door. Source, then ventilation, then cleaning, then fragrance. And never reduce ventilation, close a vent or shut extraction to make a fragrance hold longer.
Check six: whether the schedule matches real occupancy. Pull your own access-control data rather than assuming. If the unit runs overnight it is loading an empty building, and the first arrivals receive the accumulation; if it starts at nine it may be arriving after a large share of the floor already has. Hinjawadi's congestion runs roughly 08:00 to 12:00 and about 17:30 to 20:00, with PMPML night bus routes in service, which tells you that arrival and departure patterns in this corridor are worth checking rather than assuming - but your turnstile counts are the evidence, not my inference, and I am not going to tell you what hours your office keeps. The published Bluetooth app and timer is what turns that data into a setting.
Check seven: was the setting ever written down? If the answer is no, you do not have a performance problem - you have an undocumented system. A level that is adjusted by feel drifts upward, one nudge at a time, each nudge made by somebody who genuinely could not smell the previous one. Write the register, the level, the schedule and the location of each unit on one sheet, with a date and a name, and change it only deliberately. Two written settings per year, because Pune gives you two indoor seasons: a closed, damp monsoon room from roughly June to October, and a hot, dry, hard-cooling April room where air is exchanged faster.
And only now, the machine. Is it on a live socket that the building does not switch off overnight - the Vaayu is DC 12V / 1A at 5W and mains powered, so a socket on a lighting circuit or an occupancy sensor is a real cause. Is there anything in the tank. Is the correct fragrance type in the correct machine, because the two systems are not interchangeable and the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine. Those three take four minutes and they come last for a reason. A portion of every SOSA order supports girl-child education through Nanhi Kali.
If you do one thing this week, put the seven checks on a single sheet with tick boxes and a space for a date, and make it the first thing anybody opens when a fragrance ticket arrives. Not because a form solves anything, but because the sequence does. The value of a checklist in a large building is that it stops the second step happening before the first, and in scenting the second step is almost always "turn it up", which is the most expensive wrong answer available and the one that is hardest to walk back once people have got used to it.
The second thing is to nominate a test nose and make it a named role. Somebody who does not sit on the floor being assessed - a facilities executive who covers several floors, a colleague from another building, a security or reception team member coming on shift. The rule is simple: they assess within two minutes of arriving from outside, and they answer the same two questions every time. Can you smell anything, and if so, what would you call it. That is a repeatable measurement and it costs nothing. Everything else you will hear is filtered through somebody's adaptation.
The third is to keep one sheet per floor with four columns: unit name and location, register, level, schedule. Date every change and put a name against it. I would guess that more than half the "the machine is not performing" conversations I have had would have been settled in thirty seconds by that sheet existing, because the answer turns out to be that somebody changed something in March and nobody recorded it.
And a word about the specific shape of this problem on a campus floor, because it is not the same problem a small premises has. Hinjawadi is the Rajiv Gandhi Infotech Park, a gated corporate-campus belt rather than a high street - roughly 2,800 acres across three phases, more than 800 companies, around 240,000 people commuting in every day. The buildings are large, the tenancies are large, and the person receiving the complaint is a facilities manager with a ticketing system rather than an owner standing in their own shop. That changes the failure mode. In a small shop the owner notices the air themselves and adjusts it continuously; on a large floor, nobody owns the observation, the reports arrive second-hand from people who have adapted, and the system drifts because no single person is holding the memory of what it was supposed to be. The checklist is not really about the machine. It is about restoring an owner and a record to a decision that quietly lost both.
Last thing. If check five comes back positive - the space smells of something - stop the fragrance conversation entirely until that is closed out. Do not run the machine at a reduced level as a compromise. Fragrance over an unresolved smell gives you both at once, which is worse than either, and it makes the underlying source harder for the next person to find.
The seven checks, in order, written so they can go straight into a binder
Three things account for nearly every "the scent machine is not working" ticket on a large office floor, and none of them is a defective machine. The first is arithmetic that was never done - a connected volume nobody calculated, so the unit was specified against a floor area or a headcount and was over-matched from the day it arrived. The second is position and boundaries: where the unit stands in relation to the air the building is moving, and what doors sit between it and the person complaining. The third is observation: who is reporting, how adapted their nose is, and whether anybody ever wrote down what the system was supposed to be doing.
What is almost never the cause is output. I say that as somebody whose business would benefit from you buying a second machine: if a floor is not reading the way you want, the probability that the correct intervention is more output is low, and the probability that it is placement, a door, a volume calculation or a nose is high. Every one of those is free to check and most are free to fix.
The arithmetic you will need for check one, done once so you can work from it. Area multiplied by ceiling height gives cubic feet; cubic feet divided by 35.3 gives cubic metres. 12,000 sq ft at 10 ft is 120,000 cubic feet, about 3,400 m3. 10,250 sq ft at 10 ft is 102,500 cubic feet, about 2,900 m3. 2,000 sq ft at 10 ft is 20,000 cubic feet, about 567 m3. 600 sq ft at 10 ft is 6,000 cubic feet, about 170 m3. 350 sq ft at 10 ft is 3,500 cubic feet, about 99 m3. 200 sq ft at 10 ft is 2,000 cubic feet, about 57 m3. 150 sq ft at 10 ft is 1,500 cubic feet, about 42 m3. Against approximately 1000 cubic metres of connected air for a Vaayu, the large numbers explain weak performance and the small ones explain complaints of the opposite kind - because a small enclosed room over-scents faster than anything else in a building.
And keep both Pune seasons on the sheet, because a system that was correct in one is genuinely different in the other. The monsoon room runs roughly June to October, most rain June to September, July the wettest month, indoor humidity at its annual peak in July and August: a closed floor with slower air, a damp entrance, and a much higher chance that check five is the real answer. The dry-heat room runs mid-March to mid-June, peaking in April and May with average highs around 37 to 38 degrees C, and the verified counter-intuitive part is that Pune's hottest months are its driest, with the humidity trough in February to April. A floor cooling hard against dry April heat is moving and exchanging air faster, which is the honest explanation for the annual wave of April tickets that say the fragrance vanishes by three in the afternoon. Nothing is broken. The room is turning its air over faster, and the reporter's nose has adapted since morning.
Check two: placement, which people underestimate by a wide margin. Four bad positions, all common, all free to correct. In a supply airstream: the output is picked up, carried away and thinned before it does anything locally, so the room reads weak and the distribution is decided by the ductwork rather than by you. Under or beside a return grille: a share of everything the unit produces goes straight back into the system. In a dead corner: behind a pillar, inside a joinery recess, under a desk, behind a planter - it is producing into a pocket of still air that does not connect to where people are. Beside the entrance: it is in the door's turbulence and loses output every time the doors cycle, which on a building with long, heavy commuter peaks means substantial waves of loss rather than a steady trickle. The workable position on most receptions is set back from the entrance, out of the direct line of a supply grille, not immediately under a return, at a height where nobody stands with their face beside it, and on a socket the building does not de-energise overnight. The Vaayu is freestanding or wall and HVAC mount, DC 12V / 1A at 5W and mains powered. Change position first, change it once, and observe for a week before touching anything else.
Check three: the doors between the unit and the complaint. This one resolves more tickets than any other and it takes ninety seconds. Walk from the unit to the place the complaint came from, and count the doors you pass through. If any of them is normally shut, the machine is innocent: a coverage rating assumes one connected body of air and scent does not travel through a closed door. No setting, no machine and no amount of output crosses that boundary; a shut door ends one volume and begins another. The follow-up question is then the useful one - should that second volume be scented at all? For internal meeting rooms, cabins and the pantry the answer is no: internal rooms belong to your own staff rather than to visitors, a doored room of about 57 cubic metres over-scents faster than anything else you own, and a pantry gets nothing because food is the smell in a pantry and a second smell there makes a third. For a doored client room, the answer may be yes, with its own small unit, set lower than reception.
And two boundaries that belong in the binder next to these checks. Never duct a scenting unit into an air handling system you do not own, control and maintain - on a leased campus floor the air handling usually belongs to the building, and that conversation is the engineering team's and the landlord's, not yours alone. And never reduce ventilation, close a vent, block a transfer path or shut down extraction so that a fragrance lasts longer, in any phrasing. A well-ventilated floor is genuinely harder to scent and that is the correct trade.
The first is that a large share of "it has stopped working" reports are reports about adaptation. When a ticket arrives, ask two questions before anything else: when did you notice, and where had you been in the twenty minutes before? If the answer is "mid-afternoon, at my desk, where I have been since morning", you have probably found the cause and it is not the equipment. The second consequence is the dangerous one: because the people adjusting the level are the people who have adapted to it, systems drift upward, one nudge at a time, each nudge made in good faith by somebody who genuinely could not smell the previous setting. Over a year that produces a floor that everybody inside finds unremarkable and everybody arriving finds strong.
The correction is a named test nose and a fixed protocol. Pick somebody who does not sit on the floor being assessed. Have them assess within two minutes of arriving from outside. Ask the same two questions every time: can you smell anything, and what would you call it. Log the answer with the date and the current setting. That is a repeatable measurement, it costs nothing, and it is the only defence against drift. And it is worth noting that on a campus floor your best test noses arrive naturally - a visitor who has just come off a long commute and through a gate, an access desk and a lift lobby is receiving the largest contrast anybody will get all day, which is also a standing argument for setting the level lower than feels right to somebody standing inside.
Check five: what the space already smells of. Distinguish two complaints that arrive in the same ticket queue and require opposite handling. "I cannot smell the fragrance" is a coverage, placement or adaptation question. "It smells of something" is not a fragrance question at all. Fragrance adds scent. It does not remove, neutralise, absorb, mask away, deodorise, sanitise or purify odour, and no SOSA product - not the Vaayu at ₹11,999, not a ₹899 Boond, not a ₹749 reed - treats, filters, dries, dehumidifies or purifies air. None is an air-treatment device or an air purifier, and none makes a health, antibacterial or air-quality claim.
So run the source list instead: the pantry bin and how often it leaves the floor, a dried-out drain trap in a lightly used washroom or a cleaner's sink, food left in desk drawers, a fridge nobody owns, a damp store cupboard, a mop and bucket living wet in a closed room, a carpet whose cleaning cadence was set in a dry month and never revised for July, an extract fan that has not been serviced, a plant room or riser door. Then ventilation, then cleaning, then - if anything is left - fragrance. On a floor of this size each of those has an existing owner, and every one is cheaper than a machine. If check five comes back positive, stop the fragrance conversation until it is closed out, and do not compromise by running the unit lower: fragrance over an unresolved smell gives you both at once, and makes the source harder for the next person to find.
The evidence for this is your own access-control data, not an assumption about how offices in the area work. What the verified local picture tells you is only that it is worth checking: Hinjawadi is the Rajiv Gandhi Infotech Park with around 240,000 people commuting in daily, congestion running roughly 08:00 to 12:00 and about 17:30 to 20:00, and PMPML night bus routes in service. Long peaks mean arrival and departure patterns in this corridor are not safely assumed from a standard office day. I am not going to tell you what hours your building keeps or how it operates - your turnstile counts know and I do not. Pull a week of them, look at the shape, and set the schedule to that. The published Bluetooth app and timer on the Vaayu is precisely what makes this actionable rather than theoretical.
Check seven: was the setting ever written down? If not, you do not have a performance problem, you have an undocumented system, and no diagnosis is possible because there is no baseline to compare against. Build one sheet per floor with four columns - unit name and location, register, level, schedule - plus a date and a name against every change. Then hold it. The single most valuable property of a written setting is that it survives the person who set it and resists the daily temptation to nudge.
And write two settings a year, because Pune hands you two different rooms. The monsoon setting covers roughly June to October, when the floor is closed up, the air moves more slowly, the entrance is damp and check five is far more likely to be the real answer. The dry-heat setting covers mid-March to mid-June, peaking in April and May, when the counter-intuitive verified fact governs everything: Pune's hottest months are its driest, the humidity trough falling in February to April, so a floor cooling hard is exchanging air faster and the same level reads thinner by mid-afternoon. Two numbers, changed on purpose, recorded - not one number nudged twenty times.
Now, finally, the machine, which takes four minutes. Is it on a live socket that the building does not de-energise overnight? A Vaayu is DC 12V / 1A at 5W and mains powered, and a socket on a lighting circuit or an occupancy sensor is a genuine and common cause of a unit that "stops working" at exactly the same time every evening. Is there anything in the tank - the Vaayu has a 400ml tank. Is the correct fragrance in the correct machine? Two systems, not interchangeable: the ultrasonics - Boond ₹899, Sukoon ₹1,899, Megh ₹3,499 - run the water-based Hotel Collection from ₹299, while the Vaayu and the ducted machines run waterless nebulising oil, and the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine.
And two things I will not put on the checklist because SOSA does not publish them and I am not going to invent them: consumption rate and refill frequency. If your question is "should it have run out by now", that is not answerable from a page - it depends on your run hours, your connected volume and your setting. Nor are monthly running cost, machine lifespan, minimum order or lead time. Those go to WhatsApp at +91 96192 18531.
One last item that belongs in the binder next to all of this, because it is standing policy rather than diagnostics. Every unit is named, its location recorded, and any member of staff may have it switched off or turned down immediately, without a manager's approval and without giving a reason. A report of that kind is a recalibration signal rather than a tolerance problem, no health or allergy claim is made in either direction, and nobody should ever be asked to discuss it in front of colleagues. Staff are the most exposed people in the building and they are the cap on the level.
- Calculate the connected volume and ceiling height before anything else, by hand.
- Check placement against supply, return and entrance, then walk the doors.
- Ask who reported it and how long they were inside, then rule out an existing source.
- Check schedule against access data and the written setting - then look at the machine.
What to change first when the checks come back clean, and what to write down
Suppose the seven checks come back clean: the volume is within range, the unit is well placed, there is no shut door in the path, the report came from somebody who had just walked in from outside, nothing else in the room is contributing, the schedule matches your access data, and there is a written setting. Now, and only now, you are entitled to change something - and even here the first change is usually the level rather than the machine.
There are seven registers in the water-based Hotel Collection, each SOSA's own hotel-inspired interpretation, and SOSA is independent and not affiliated with, endorsed by or connected to any hotel brand. On a corporate floor the steer is a context steer rather than a taste one: dry, clean, unsweet, low, and identical every single day. Quiet Luxury is white tea, bergamot and cedar - hushed and polished, and the default for a reception. White Tea Serenity is white tea, aloe and cedar, clean and weightless, and the register that reads most naturally as clean rather than as scented, which is the safer choice where reception is connected to the workstation floor. Forest Suite is cedarwood, vetiver and green leaves, the driest of the three and the one received as part of the building rather than as an installation.
The ones I would keep off an operational floor: Lobby Bar, citrus, pepper and amber, bold and after-dark, because personality is what wears on somebody passing it eight hundred times a year; Old-World Glamour, amber, violet and woods, plush and evening-elegant, because plush accumulates in a connected volume in a way that dry does not; Warm Welcome, citrus, floral and sandalwood, a true threshold register that turns sweet in a room people occupy; and Tea Garden, jasmine, green tea and white tea, the least insistent floral in the collection but still heard as a decision somebody made when your own staff walk past it four times a day.
I will not rank those seven against each other on measured throw or longevity - SOSA does not publish that comparison, and the variables that dominate on your floor all belong to your building. And one structural rule that belongs in the binder: one register per floor, written at different levels per volume. Never two registers, because on a connected floor they meet in the open plan and on a doored floor they collide in the doorway, and in both cases the result is a third smell that no checklist can diagnose because nobody chose it.
The last diagnostic principle, which is the one most likely to save you money. If the checks are clean and the room still reads thin, try the level down before you try it up. That sounds backwards and it is not: a floor that has drifted upward reads as flat and characterless to adapted noses inside it, because everybody has habituated to a level that is too high to register as anything. Bringing it down and holding it for a fortnight frequently restores the sense of a room having a character, and it lowers the exposure of the people who bear it all day. Then have the test nose assess it from outside. That is the experiment, and it costs nothing.
| Scent | Why it suits the mood |
|---|---|
| "I cannot smell it any more, but visitors say they can" · check four | Adaptation, not equipment. Most people stop registering a constant background scent within about twenty minutes of exposure, so somebody on the floor since 8 AM is not a reliable instrument by mid-afternoon. Get the assessment from somebody who has been outside ten minutes. Log the answer with the date and the current setting. |
| "Reception is fine but the meeting rooms have nothing" · check three | A closed door, and the machine is innocent. A coverage rating assumes one connected body of air and scent does not pass a shut door. The real question is whether that room should be scented at all - internal rooms used by staff get nothing, and a doored client room of about 57 m3 gets its own small unit set lower than reception, never deeper. |
| "It vanishes by three every afternoon in April" · checks four and six | Adaptation plus air exchange. Pune's hottest months are its driest, with the humidity trough in February to April, so a floor cooling hard against dry heat is moving and exchanging air faster. Nothing is broken. Write a separate dry-season setting rather than nudging one number, and review it again when the monsoon closes the building up. |
| "It smells of the pantry, so we need something stronger" · check five, and stop | Not a fragrance problem in any form. Fragrance adds scent and does not remove, neutralise or purify odour, and no SOSA product treats, filters, dries or purifies air. Run the source list - bin cadence, drain traps, desk drawers, an unowned fridge, extract servicing - then ventilation, then cleaning. Do not run the unit lower as a compromise; close the source out first. |
So the buying answer, on a page whose main purpose is to stop you buying something you do not need. For a reception or a connected client area, the commercial machine is the waterless SOSA Vaayu at ₹11,999: cold-air nebulising of undiluted oil, no water, no humidity and no wet residue, approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W and mains powered so it needs a live socket, CE, RoHS and SGS. Its Bluetooth app and timer is the feature that makes checks six and seven enforceable rather than aspirational.
For a doored room of 42 to 99 cubic metres, a second Vaayu is more machine than the volume needs and the honest purchases are the ultrasonics - the SOSA Sukoon at ₹1,899, the SOSA Boond at ₹899, or the SOSA Megh at ₹3,499 with a 6 litre tank for a larger lounge running all day - all running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999 and 300ml also available, and the pack of seven 15ml bottles at ₹1,799 for auditioning registers in your own air. Two systems, not interchangeable, and the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine - which is itself a check worth running before anybody concludes a machine is faulty. The ducted Aangan at ₹25,999 for approximately 8,000 to 10,000 sq ft and Meenar at ₹38,500 for approximately 12,000 to 18,000 sq ft are whole-building equipment, and on a leased campus floor ducting is a decision for whoever owns and maintains the air handling.
Where you want no plug, no schedule and nothing that can be blamed, the SOSA reed diffusers are their own registers rather than Hotel Collection ones: Mountain Breeze ₹849 is Himalayan pine, sage and cedar and the closest to a dry corporate direction; Morning Freshness ₹749 is Malabar lemon, mint and eucalyptus; Garden Bloom ₹799, Evening Calm ₹799 and Fresh Brew ₹849 complete the set. 130ml from ₹1,249, refills ₹2,399 and ₹3,499, lasting about 6 to 10 weeks. A reed is passive and local - it scents the few feet around it and will never fill a floor, which means it generates almost no tickets and solves almost no coverage problems. Know which of those you are buying.
To go deeper on what this page only touches: if check one is where you failed, the full method for counting volumes is in deciding between scent zoning and one machine on a 200-person Hinjawadi floor. If check three keeps returning "there is a shut door", the question of which volumes should be scented at all is answered in whether IT workstation areas should stay fragrance-neutral while reception and client areas are scented. And if the complaints are coming from people who sit on the floor rather than from visitors, read how a Hinjawadi office should handle fragrance when employees spend eight to ten hours inside, because that is a different problem with a different answer.
What SOSA does not publish, and what this page will therefore not invent: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time. Those depend on run hours, connected volume and setting, and they are yours rather than ours. Send the floor plan, the calculated cubic metres and your settings sheet to WhatsApp at +91 96192 18531 instead. Bulk orders are welcome, custom label or logo on product is available, and bespoke composition is a real SOSA service discussed there rather than priced on a page - although the cheaper honest answer comes first, which is that one register held consistently already is a signature, because consistency makes a signature and uniqueness does not.
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.
| 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.
- 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.
Versailles
SOSA is a Pune business, so these are not pages I wrote from a desk somewhere else. I have stood in a Baner clinic in the second week of July and in a Kharadi tower in the middle of April, and the useful thing I can tell you is this: the locality on your signboard is not a technical variable. Nobody scents a postcode. What a locality name is actually shorthand for is a cluster of real things - how old the building is, whether the front is sealed glass or a door onto a pavement, what the air conditioning genuinely is, how many people come through, how long each of them stays, and what the room already smells of.
Which is why two businesses three doors apart can need completely different answers, and why the same business needs two different answers in July and in April. A Pune monsoon room and a Pune April room are not the same room. One is damp, closed up and slow; the other is dry, hot, and running its air conditioning so hard that whatever you put in the air is being moved and diluted faster than you think. That is a real difference and it belongs in the settings, not in the choice of blend.
The order never changes, though, and it is the least commercial thing I say: source, then ventilation, then cleaning, then fragrance. Fragrance adds a smell. It has never once removed one. If your unit smells of damp, or new paint, or last night's food, a machine will give you damp and fragrance - and most people find that worse than damp. Fix the thing making the smell, get air moving, clean what holds it, and then, if the room deserves it, give it a quiet character and hold it.
Frequently asked questions
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 Pune's seasons and localities are general and qualitative; every figure about a specific building must come from that building. 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.