★ SOSA for Diagnostic, Pathology and Imaging Centres
A branch spec written in square feet is wrong wherever the ceiling differs, and the ceiling always differs
★ ★ ★ ★ ★
★★★★★
"Our old water diffuser couldn't fill the living-dining. This one does the whole floor and you can't hear it running."
SOSA Vaayu · large home
★★★★★
"The app scheduling is the best part - strong in the mornings, gentle in the evening. Clinic feels calm all day."
SOSA Vaayu · wellness studio
★★★★★
"Paired it with the SOSA hotel oils. The projection is genuinely lobby-strength - nothing like a plug-in."
SOSA Vaayu · workspace
★★★★★
"My reception now smells like a five-star lobby. Guests comment on it before they even reach the desk."
SOSA Vaayu · lobby scenting
★★★★★
"Zero dampness, which was my worry in monsoon. The mist is completely dry and the scent carries across the whole salon."
SOSA Vaayu · spa & salon
★★★★★
"Set the timer once and forgot about it. Runs only during store hours, refills last weeks. Exactly what I wanted."
SOSA Vaayu · showroom
★★★★★
"Our old water diffuser couldn't fill the living-dining. This one does the whole floor and you can't hear it running."
SOSA Vaayu · large home
★★★★★
"The app scheduling is the best part - strong in the mornings, gentle in the evening. Clinic feels calm all day."
SOSA Vaayu · wellness studio
★★★★★
"Paired it with the SOSA hotel oils. The projection is genuinely lobby-strength - nothing like a plug-in."
SOSA Vaayu · workspace
★★★★★
"My reception now smells like a five-star lobby. Guests comment on it before they even reach the desk."
SOSA Vaayu · lobby scenting
★★★★★
"Zero dampness, which was my worry in monsoon. The mist is completely dry and the scent carries across the whole salon."
SOSA Vaayu · spa & salon
★★★★★
"Set the timer once and forgot about it. Runs only during store hours, refills last weeks. Exactly what I wanted."
SOSA Vaayu · showroom
★ The hardware each converted volume points at
SOSA VaayuRated at 1000m³, not at a floor areaView ₹11,999
SOSA VaayuIntensity set from the branch's own cubic metresView ₹11,999
SOSA Angaan3,000m³, for a converted volume that bigView ₹25,999
✓ Square feet × ceiling height in metres × 0.0929 = cubic metres. That conversion belongs on the standard ✓ No bulk pricing, no minimum order, no corporate programme - multi-branch enquiries go to the contact page ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Diagnostic Centres
Why is square footage the wrong unit? Because coverage is cubic and ceilings vary far more than owners expect. A 1,000 sq ft branch at 2.7m holds about 251m³. The same 1,000 sq ft in a converted showroom at 4.2m holds about 390m³ - more than half as much air again from an identical spreadsheet row. A double-height arrival volume eats coverage quietly, which is why two branches with the same lease area can behave completely differently on the same setting.
What is the catch? Somebody has to measure ceiling heights at every branch, which is the least popular sentence in this whole family and also the entire job. It is one visit per branch with a laser measure, recorded once as a column on the branch master, and it never changes afterwards. Chains that skip it end up with a standard that is precise about the wrong quantity, and branch managers who quietly stop following it because it does not match their room.
See the SOSA Vaayu Book a scenting plan
Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with a 400ml refillable tank lasting 90+ days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, DC 12V/1A at 5W (roughly 1.5 units of electricity a month on a ten-hour daily schedule), freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. The SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB, and also runs standalone wall-mounted or lay-flat. The SOSA Meenar (₹38,500) is the largest machine in the range, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space. Ambient scent is an interior and hospitality decision: it works alongside proper ventilation, cleaning and clinical protocol and is not a substitute for any of them, it is not a medical device, and SOSA makes no health, therapeutic or treatment claim of any kind and no claim that fragrance affects bookings, retention or spend. CE, RoHS and SGS are electrical and compliance marks, not medical approval. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.
Different floor areas are not the problem people think they are, because floor area was never the right unit to write a standard in. The correct unit is a cubic metre, and adopting it makes the branch differences shrink rather than grow.
Quick answers — read this first
How do I standardise fragrance when every branch is a different size? Stop writing the standard in units per branch and write it in intensity per cubic metre of scented air plus hours per day. Then each branch converts its own room: square feet multiplied by ceiling height in metres multiplied by 0.0929 gives cubic metres. A standard written that way is portable - it is correct at 400 sq ft and correct at 4,000, it survives a refit, and it tells a new branch what to do without anybody re-deciding.Why is square footage the wrong unit? Because coverage is cubic and ceilings vary far more than owners expect. A 1,000 sq ft branch at 2.7m holds about 251m³. The same 1,000 sq ft in a converted showroom at 4.2m holds about 390m³ - more than half as much air again from an identical spreadsheet row. A double-height arrival volume eats coverage quietly, which is why two branches with the same lease area can behave completely differently on the same setting.
What is the catch? Somebody has to measure ceiling heights at every branch, which is the least popular sentence in this whole family and also the entire job. It is one visit per branch with a laser measure, recorded once as a column on the branch master, and it never changes afterwards. Chains that skip it end up with a standard that is precise about the wrong quantity, and branch managers who quietly stop following it because it does not match their room.
The short answer
Short answer: Write the standard in intensity per cubic metre of scented air and hours per day, never as units per branch. Convert each branch with square feet × ceiling height in metres × 0.0929. A spec written in square feet is wrong wherever the ceiling differs, and somebody has to measure the ceilings - that is the whole job.
The pick: hardware follows the converted number: a ₹749 reed under roughly 80m³, and the SOSA Vaayu at ₹11,999 as the scented volume approaches its 1000m³ rating.
Next step: send the branch list with floor areas and ceiling heights and we will return the converted volumes and the dose column - ask for a clinic scenting plan.
In this guide
Adopt the right unit and a twelve-branch estate stops being twelve arguments and becomes one line with twelve conversions under it.
Machines are rated in cubic metres too - tap for the ratings
Rated at 1000m³ of air
SOSA Vaayu · ₹11,999
The count that follows the conversion
How many machines does a chain need?
Send areas and ceiling heights
Free clinic scenting plan
Straight answer
How do I standardise fragrance when every diagnostic branch has a different floor area?
By writing the standard in intensity per cubic metre of scented air and hours per day, and never in units per branch. Different floor areas only look like an obstacle while the standard is written in the wrong unit; change the unit and the differences resolve into arithmetic. Here is the conversion, and it belongs printed on the standard itself so nobody has to remember it: square feet multiplied by ceiling height in metres multiplied by 0.0929 gives cubic metres. Do the subtraction before the multiplication. Every collection and phlebotomy room, every sample-processing and bench area, every scan room and its control room, and every changing cubicle comes out first, unscented as a flat rule and never at a lighter setting, because those rooms are governed by your lab director, your radiographers, the equipment manufacturers and your facilities engineer rather than by a fragrance supplier. On a diagnostic plan that subtraction is large, and it is where chains over-buy. What is left - entrance, reception, general waiting, the executive lounge if there is one, and the corridor joining them - is the volume the standard is written against. Then the ceiling. This is the part everybody skips and it is the part that makes the unit worth adopting: a 1,000 sq ft branch at 2.7m is about 251m³, and the same 1,000 sq ft under a 4.2m soffit is about 390m³. Half as much air again, from two spreadsheet rows that look identical. Double-height arrival volumes are the worst case and they are exactly the branches a chain is proudest of. So the dose field reads as a level per cubic metre plus hours per day, with the run window set around your own day - the fasting-sample peak between seven and ten in the morning is your busiest and highest-exchange hour, three in the afternoon is your quietest, and the heaviest cleaning hour should be excluded deliberately. Hardware then falls out of the number rather than being chosen: under roughly 80m³ a ₹749 reed is not the budget answer but the correct one; a few hundred cubic metres of busy connected air is where a Sukoon at ₹1,899 or a SOSA Vaayu at ₹11,999 starts to be argued; and one machine serves one volume of air, never one room. The concession is plain: somebody has to walk into every branch with a laser measure, which nobody wants to do and which is the whole job. And on terms, SOSA has no bulk pricing, no discount slab, no minimum order, no GST arrangement, no custom branding, no published lead times, no installation or commissioning service, no AMC or warranty statement and no corporate account programme at all - a multi-branch enquiry goes to the contact page and nothing is promised on terms. Fragrance here is an ambience decision like lighting, seating or signage, SOSA products are not medical devices, the clinician's judgement overrides any plan, and we make no claim that any of this affects footfall, package sales or revenue.
Write the dose as intensity per cubic metre and hours per day. Convert with sq ft times ceiling height in metres times 0.0929, after subtracting the clinical rooms. Then somebody measures the ceilings, and that is the actual work.
The converted number chooses the product, not the other way round. Under roughly 80m³ it is a ₹749 reed; a few hundred cubic metres of busy connected air is a Sukoon at ₹1,899; and approaching 1000m³ it is the SOSA Vaayu at ₹11,999.
See the SOSA Vaayu ₹11,999 Ask for a clinic scenting plan
Machines are rated in the same unit the standard should use
1000m³ is a volume of air, not a floor plan
What each converted volume points at
Notice that the products below are all rated in cubic metres. That is not a coincidence and it is the argument of this page in one line: the manufacturer already specifies in the unit your standard should be written in, and the square-footage figures are a translation for convenience.
For a converted volume approaching 1000m³
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³, described as roughly 2,000-3,000 sq ft, ₹11,999. Adjustable intensity is what lets one written level per cubic metre be realised in branches of different sizes.
From ₹11,999
For a converted volume around 3,000m³
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, ₹25,999, 800ml reservoir, programmable schedules, under 42dB. Very few diagnostic branches convert to a number that large once the exclusions are out.
From ₹25,999
Three parts of the conversion, and where each goes wrong
Subtract, then measure, then write it in the right unit. Each step has a characteristic failure, and I have watched all three of them cost a chain money.
1
One
Subtract before you measure anything
The first number in the conversion is not the lease area, it is what survives the exclusions, and on a diagnostic plan that is a bigger cut than in any other commercial building. Out come collection and phlebotomy rooms, sample processing and bench areas, every scan room and its control room, and the changing cubicles - unscented in every branch as a flat rule with no lighter version, because their contents are decided by your lab director, your radiographers, the equipment manufacturers and your facilities engineer. What is left is entrance, reception, general waiting, the lounge if there is one, and the corridor joining them. On a 1,200 sq ft branch built around four cubicles and an ultrasound room, the remainder can be under 400 sq ft. Chains that write the standard against lease area rather than remainder buy roughly a third more hardware than they need, and then wonder why the small branches feel heavy.
Tip: Ask each branch to shade its clinical rooms on a printed plan and send a photograph. That photograph is the input to the conversion.
A Vaayu is sized against the unshaded remainder. The shaded rooms are not part of the number at any setting.
See SOSA Vaayu →
2
Two
Then measure the ceilings, which nobody wants to do
This is the whole job and it takes one visit per branch. A laser measure costs less than a single reed refill, a ceiling height is recorded once and never changes, and the difference it makes is larger than any fragrance decision on the page. Consider three branches, all 900 sq ft of remainder. One is a shopfront at 2.7m: about 226m³. One is an older building at 3.3m: about 276m³. One is a converted showroom with a 4.5m soffit over the arrival area: about 376m³. On an identical setting the third branch will read faint and the first will read heavy, and every branch manager involved will believe the problem is the fragrance. Record the height on the branch master alongside the shaded area, and the dose column writes itself.
Tip: Where a branch has a double-height arrival and a lower waiting area, record both heights and use the weighted figure rather than the impressive one.
Because the Vaayu has adjustable intensity, one written level per cubic metre can be realised in branches of quite different heights.
See SOSA Vaayu →
3
Three
Write the level in the unit, and add hours
The dose field has two halves and chains usually write only one. The first is intensity per cubic metre; the second is hours per day, and in this business the second half carries more than people expect. Diagnostic footfall is not flat - the fasting-sample peak between seven and ten in the morning is the crowded, high-exchange part of your day and mid-afternoon is the quiet part - so a branch running eleven flat hours is wrong for most of them. Write two windows rather than one, exclude the heaviest cleaning hour deliberately, and add the asymmetry that makes a chain standard hold: any branch may reduce the level or switch off entirely without asking, and no branch may raise it without a written request. A reed cannot follow a clock at all, which is worth knowing when a branch's converted volume sits near the boundary.
Tip: Two lines in the dose field: level per cubic metre, and the run windows. If either is missing, branches will improvise the other.
At a very large converted volume the Angaan holds the same written level across 3,000m³ where a single point source could not.
See SOSA Angaan →
The SOSA principle
Branch sizes only look inconsistent while the standard is written in the wrong unit. Convert to cubic metres and a twelve-branch estate becomes one written level with twelve pieces of arithmetic beneath it.
The arithmetic is also checkable by anybody, which is what makes a standard survive the person who wrote it.
The conversion table, worked across four branches
Four branches, four remainders, four heights, four answers. Copy the shape of this into your own standard and fill in your own numbers.
The SOSA plan
Four branches converted, remainder by remainder
| Scented remainder and ceiling height | Converted volume, and what it points at |
|---|---|
|
260 sq ft remainder at 2.7m
|
About 65m³. One reed at ₹749, three or four reeds in the bottle, flipped weekly. A machine here would be a mismatch rather than an upgrade. |
|
700 sq ft remainder at 3.0m
|
About 195m³. A reed if the branch is quiet, or a Sukoon at ₹1,899 if you want an off switch and a schedule. Traffic decides, not the number alone. |
|
1,600 sq ft remainder at 3.3m
|
About 490m³, comfortably inside a single machine's rating, with headroom for the morning peak. One unit, one volume. View → |
|
3,400 sq ft remainder at 4.5m
|
About 1,420m³ - past a single point source, and the branch where ducting decides between one machine placed well and a ducted unit. View → |
The machine count that follows this conversion is worked through in how to calculate how many machines a multi-branch business needs, the document it all lands in is how to standardise ambient fragrance across a chain, and the air-handling variable has its own page in how central AC affects distribution across a multi-room centre. SOSA makes no health, therapeutic or wellbeing claim of any kind, and no claim that ambient scenting affects footfall, package sales, retention, reviews or revenue.
Send areas and ceiling heights
We will convert every branch, write the dose column and tell you which branches need no hardware at all.
Measuring ten ceilings is the least interesting afternoon in this entire process, and it is the afternoon that decides whether the standard is worth the paper it is printed on.
— Sonal Sahani, SOSA
Coverage figures, in the unit the standard should use
1000m³, 3,000m³, and the branch that needs neither
Hardware after the arithmetic
Chosen by the converted number, in the same unit the manufacturer specifies. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA position for an estate of mixed sizes
Written per cubic metre and per hour, then matched to a rating
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
A converted remainder approaching 1000m³ | ₹11,999, rated in the same unit, with adjustable intensity to reach the written level | ₹11,999 View → |
|
SOSA Angaan
|
A converted remainder approaching 3,000m³ | ₹25,999, 800ml, ducted - rare in a diagnostic branch after exclusions | ₹25,999 View → |
 SOSA Meenar
|
A flagship volume beyond both | ₹38,500, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space | ₹38,500 View → |
Most branches convert to a number well under 200m³ and belong on a reed at ₹749-₹849 or a Sukoon at ₹1,899 - and the reed line has published refills, oil only, at ₹2,399 for 300ml and ₹3,499 for 500ml. On terms, SOSA has no bulk pricing, no discount slab, no minimum order, no GST arrangement, no custom branding, no published lead times, no installation or commissioning service, no AMC or warranty statement and no corporate account programme at all - a multi-branch enquiry goes to the contact page and nothing is promised on terms. Fragrance here is an ambience decision like lighting, seating or signage, with no health, therapeutic or clinical claim of any kind, and no claim that it affects footfall, package sales, retention, reviews or revenue. It works alongside your ventilation, cleaning and laboratory protocol, never instead of them, SOSA products are not medical devices, collection, processing, bench, scan and control rooms stay unscented, staff must be able to switch the source off in seconds, and the clinician's judgement overrides any plan. Ask for a clinic scenting plan with your branch list attached.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The first time I asked a chain for ceiling heights I was told, politely, that this was not the kind of question a fragrance company usually asks. It is the only question that makes the rest of the standard mean anything. Coverage is a volume, machines are rated in volumes, and the branch master was written in square feet by somebody signing leases, which is a completely different job.
What surprises operations people is that adopting the harder unit makes the estate easier rather than harder. One written level, one printed conversion, and every branch can check its own arithmetic without ringing head office. A standard that a branch can verify is a standard a branch will follow, and that is worth more than any amount of precision at the centre.
The measuring is dull and it is one afternoon per branch, once, forever. We make no health, therapeutic or clinical claim of any kind, and no claim that scenting affects footfall, package sales, retention or revenue. Fragrance is an ambience decision, like lighting or seating. Clinical rooms stay unscented, and the clinician's judgement overrides any plan. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
What unit should a chain fragrance standard be written in?
Intensity per cubic metre of scented air, plus hours per day. Never units per branch, and never low, medium or high - a setting called low in a 250m³ reception is not low in a 420m³ one. Print the conversion from square feet on the standard itself so each branch can do its own arithmetic and check it.
How do I convert a branch floor area into cubic metres?
Square feet multiplied by ceiling height in metres multiplied by 0.0929. Do it on the remainder after subtracting collection rooms, processing and bench areas, scan and control rooms and changing cubicles, never on the lease area. A 900 sq ft remainder at 3.0m is roughly 251m³; the same remainder at 4.5m is roughly 376m³.
Why does ceiling height matter more than floor area?
It does not matter more, it matters equally and it is the half nobody records. Two branches with an identical area on the spreadsheet can differ by fifty per cent in air volume, and on the same setting one will read heavy and the other faint. Because nobody logs the height, the difference gets blamed on the fragrance instead.
Do I need to measure every branch, or can I estimate?
Measure. An estimate of a ceiling height is usually out by half a metre and half a metre is a large fraction of the volume. It is one visit per branch with a laser measure, recorded once on the branch master, and the number never changes unless the building does. This is the least glamorous and most load-bearing task in the whole exercise.
Does a bigger branch just need a stronger fragrance?
It needs more output to reach the same faint level, which is not the same thing. The target does not change with branch size: detectable on arrival, never identifiable, and set for the person working a twelve-hour shift rather than the visitor there for forty minutes. Larger volumes take a higher dial setting to arrive at that identical quiet result.
Per cubic metre, per hour
SOSA — Clinic Scenting one written level, twelve conversions beneath it
Subtract the clinical rooms, measure the ceilings, convert to cubic metres, and write intensity per cubic metre with hours per day. No bulk pricing, no minimum order and no corporate programme. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Ask for a clinic scenting plan → SOSA Vaayu · ₹11,999
The coverage figures once more, in cubic metres
Continue the read
More from SOSA
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the planning advice applies to any brand.Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with a 400ml refillable tank lasting 90+ days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, DC 12V/1A at 5W (roughly 1.5 units of electricity a month on a ten-hour daily schedule), freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. The SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB, and also runs standalone wall-mounted or lay-flat. The SOSA Meenar (₹38,500) is the largest machine in the range, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space. Ambient scent is an interior and hospitality decision: it works alongside proper ventilation, cleaning and clinical protocol and is not a substitute for any of them, it is not a medical device, and SOSA makes no health, therapeutic or treatment claim of any kind and no claim that fragrance affects bookings, retention or spend. CE, RoHS and SGS are electrical and compliance marks, not medical approval. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.