★ SOSA for Diagnostic, Pathology and Imaging Centres
What varies between a 400 sq ft branch and a 4,000 sq ft one is cubic metres, not scent
★ ★ ★ ★ ★
★★★★★
"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 rungs a twelve-branch estate actually uses
SOSA VaayuThe large branches, above about 400 cubic metresView ₹11,999
SOSA VaayuRun windows written into the branch standardView ₹11,999
SOSA AngaanOnly if a flagship outgrows the rung belowView ₹25,999
✓ Specify cubic metres per source and hours per day, never units per branch ✓ No bulk pricing, no minimum order, no custom branding and no published lead times ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Diagnostic Centres
How do I write a standard that covers a ten-times size range? In cubic metres per source and hours per day. Every branch converts its own public floor area with the same sum - square feet multiplied by ceiling height in metres multiplied by 0.0929 - after subtracting the rooms on the zero list. The standard then reads: one source per volume band, run these hours, at this level, with this named owner. A standard written in units per branch will be wrong wherever the ceiling differs, and across twelve branches the ceilings always differ.
What does that look like across your four bands? A 400 sq ft collection centre with about 300 sq ft of public floor at 2.9 metres is roughly 81 cubic metres, which is one Morning Freshness reed at ₹749. A 900 sq ft branch with 380 public at three metres is about 106 - a 130ml bottle at ₹1,249, or a Sukoon at ₹1,899 if the door never stops. An 1,800 sq ft branch with 700 public at 3.1 metres is about 202. A 4,000 sq ft hub with 1,450 public at 3.9 metres is about 525, and that is a SOSA Vaayu at ₹11,999.
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.
A ten-times range of branch sizes sounds like a standardisation problem and it is really a units problem. Write the standard in the wrong unit and every branch will be wrong in a different direction; write it in cubic metres and the same sentence covers all twelve.
Quick answers — read this first
What exactly should be identical across the twelve branches? Two things, and they are the two a customer actually meets: the fragrance and the zero list. One scent across the estate, and the same written list of rooms that never get a source - collection, processing, bench, scan and control rooms, changing cubicles, and anywhere somebody is undressed, cannulated or enclosed with equipment. Both of those scale for nothing. What should not be identical is the hardware, because a 400 sq ft collection centre and a 4,000 sq ft hub are not the same volume of air and no single machine setting fits both.How do I write a standard that covers a ten-times size range? In cubic metres per source and hours per day. Every branch converts its own public floor area with the same sum - square feet multiplied by ceiling height in metres multiplied by 0.0929 - after subtracting the rooms on the zero list. The standard then reads: one source per volume band, run these hours, at this level, with this named owner. A standard written in units per branch will be wrong wherever the ceiling differs, and across twelve branches the ceilings always differ.
What does that look like across your four bands? A 400 sq ft collection centre with about 300 sq ft of public floor at 2.9 metres is roughly 81 cubic metres, which is one Morning Freshness reed at ₹749. A 900 sq ft branch with 380 public at three metres is about 106 - a 130ml bottle at ₹1,249, or a Sukoon at ₹1,899 if the door never stops. An 1,800 sq ft branch with 700 public at 3.1 metres is about 202. A 4,000 sq ft hub with 1,450 public at 3.9 metres is about 525, and that is a SOSA Vaayu at ₹11,999.
The short answer
Short answer: Standardise the fragrance and the zero list, and let the hardware follow each branch's volume. Write the specification as cubic metres per source and hours per day rather than as units per branch, because ceiling heights differ across an estate. On a 400 to 4,000 sq ft range that means roughly 81 to 525 cubic metres of public air, which is a ₹749 reed at one end and an ₹11,999 machine at the other, with the same scent throughout.
The pick: one Morning Freshness reed at ₹749 for the smallest branches and the SOSA Vaayu at ₹11,999 for the largest, running the same fragrance family in both.
Next step: send the twelve branch areas with ceiling heights and we will build the conversion table with you; multi-branch enquiries also go through the SOSA contact page - ask for a clinic scenting plan.
In this guide
The first three lines are a page of A4 and cost nothing. Only the fourth has a price, and it is a different price in each of your four bands.
The rungs the estate uses, and the one above them - tap for the figures
For the branches past ~400 cubic metres
SOSA Vaayu · ₹11,999
Writing the specification per cubic metre
Standardising when every branch is a different size
Send the twelve areas and heights
Free clinic scenting plan
Straight answer
How do twelve branches from 400 to 4,000 sq ft share one signature scent?
By standardising the two things a customer actually meets - the fragrance and the zero list - and letting the hardware vary branch by branch, with the specification written in cubic metres rather than in units. Take the units point first, because everything else follows from it. Floor area is the wrong unit for this job. Twelve branches acquired over several years will have ceilings anywhere between about 2.8 and 4.5 metres, and a standard that says one machine per 1,500 sq ft will be materially wrong at both ends of that range. The right sentence is: subtract the rooms on the zero list, convert the public floor that remains with square feet multiplied by ceiling height in metres multiplied by 0.0929, and then read the source off a band table. Somebody has to go and measure twelve ceiling heights, which nobody enjoys and which is essentially the whole job. Here is what the bands look like on your range. A 400 sq ft collection centre with roughly 300 sq ft of public floor at 2.9 metres holds about 81 cubic metres: one Morning Freshness reed at ₹749, six fibre reeds, flipped weekly. A 900 sq ft branch with 380 public at three metres holds about 106: a 130ml bottle at ₹1,249, or a Sukoon at ₹1,899 where the door genuinely never stops. An 1,800 sq ft branch with 700 public at 3.1 metres holds about 202: the same, or a machine if the morning peak is heavy. And a 4,000 sq ft hub with 1,450 public at 3.9 metres holds about 525, which is a SOSA Vaayu at ₹11,999 - bought for its run windows, adjustable intensity and key-lock as much as for its coverage. Same fragrance in all four. Now the refusal: do not buy twelve identical machines so that the branches match. It is the most natural instinct in a chain and it produces two bad outcomes at once. In the small branches you get a machine running permanently at the bottom of its range in a room that a ₹749 bottle would have served, and in the large ones you get a specification chosen to match the small ones rather than the volume. Matching hardware is not what a customer experiences; matching air is. Two honest constraints before you build anything on this. SOSA publishes no bulk pricing, no minimum order, no GST arrangement, no custom branding, no lead times, no installation or commissioning service, no AMC and no warranty terms - a multi-branch enquiry goes through the contact page and nothing is promised on terms. And there is no cold-air refill oil published for the Vaayu today: the 400ml in the box runs 90+ days and re-supply has to be confirmed with us in writing before an estate standardises on it. Fragrance is an ambience decision like lighting, seating or signage, SOSA products are not medical devices, we make no claim that scenting affects how a branch performs commercially, and the clinician's judgement overrides any scenting plan, including mine.
Standardise the fragrance and the zero list; vary the hardware. Write the spec in cubic metres per source, not units per branch. Roughly 81 cubic metres at 400 sq ft and 525 at 4,000, which is ₹749 at one end and ₹11,999 at the other.
The two ends of the estate are one Morning Freshness reed at ₹749 and one SOSA Vaayu at ₹11,999, running the same fragrance family.
See the SOSA Vaayu ₹11,999 Ask for a clinic scenting plan
What the machine adds at the large end only
Run windows and a key-lock, written into the branch spec
The two rungs an estate this size actually uses
Most of your twelve branches will land on bottles. These specifications matter for the two or three largest, and the third rung is here so you can see where it stops being relevant.
For branches past roughly 400 cubic metres of public air
SOSA Vaayu
₹11,999, waterless cold-air nebuliser rated to 1000m³. In a chain the features that matter are the key-lock, the 1h/4h/8h/24h run windows and the adjustable intensity, because they let a central standard survive a branch manager's opinion. 400ml at 90+ days, under 38dB.
From ₹11,999
Only if a flagship outgrows the rung below
SOSA Angaan
₹25,999, HVAC nebulising diffuser rated to 3,000m³ or roughly 8,000-10,000 sq ft, 800ml reservoir, programmable schedules, under 42dB. On a 400 to 4,000 sq ft estate this is a row you read and skip, unless one branch is a genuinely large ducted floor.
From ₹25,999
Three rules for an estate with a ten-times size range
One about units, one about what actually travels between branches, and one about the purchase to refuse.
1
One
Measure twelve ceilings, then write one sentence
The conversion is trivial and the measuring is the work. Square feet multiplied by ceiling height in metres multiplied by 0.0929 gives cubic metres, and every branch does its own sum on its own public floor after the zero list comes off. Then one sentence covers the estate: below about 120 cubic metres a bottle; between about 120 and 400, a bottle or a small ultrasonic depending on door traffic; above about 400, a machine with run windows. Notice that the sentence never mentions square feet, which is exactly the point. Two of your branches will surprise you - a small floor plate under a four-metre ceiling can hold more air than a larger one under a low false ceiling, and a standard written in area would have sent the wrong product to both.
Tip: Record the finished ceiling height, measured over the seating rather than at the door, in the branch file. It only has to be done once.
Coverage figures for the Vaayu are quoted in cubic metres for this reason, and the branch table should quote them the same way.
See SOSA Vaayu →
2
Two
The two things that travel between branches for free
A visitor in your smallest collection centre and a visitor in your largest hub are not comparing hardware; they cannot see it and would not know what they were looking at. What they can meet is the fragrance and the boundary. So standardise those. One scent across all twelve, chosen so that it works at a low level in a small quiet room and at a fuller one in a large busy hall - which in practice means something dry, clean and cool rather than anything sweet or gourmand, since a morning branch is full of people who have been fasting and that is a matter of courtesy. And one zero list, identical everywhere, so that a customer who uses two of your branches meets the same boundary in both. Neither of those has a per-branch cost, and between them they are most of what an estate standard is worth.
Tip: Print the zero list on the same sheet as the fragrance name. They belong together and they travel together.
Where a Vaayu is deployed, the key-lock is what keeps a branch on the estate level rather than on its own.
See SOSA Vaayu →
3
Three
Refuse the twelve-identical-machines plan
It gets proposed in almost every chain conversation I have, usually with the reasonable argument that identical equipment is easier to buy, easier to train on and easier to audit. Three problems. The first is that a machine in a 300 sq ft collection centre is running at the bottom of its range permanently, which is a worse result than a bottle and roughly sixteen times the price. The second is that specifying one unit for twelve branches means the spec is chosen against the middle of the estate and fits neither end. The third is the audit argument in reverse: what you actually want to audit is whether the air in each branch reads the same, and identical hardware in different volumes guarantees that it does not. Buy the outcome, not the fleet.
Tip: If somebody argues for uniform hardware, ask what a customer would notice. That usually settles it in a sentence.
Deploy the Vaayu where the volume asks for it, and let the small branches keep their bottles. Mixed estates are normal.
See SOSA Vaayu →
The SOSA principle
A chain standard written in square feet is wrong in every branch where the ceiling differs, and across twelve branches the ceiling always differs.
Cubic metres per source and hours per day is a sentence that survives a new lease, a refit and a change of operations manager. Units per branch does not.
Four branch bands, one fragrance
This is the table that goes into the standard. Add a column for the named owner at each branch and it is finished.
The SOSA plan
Four branch bands across a twelve-site estate
| Branch and its public volume | The source, and why that one |
|---|---|
|
400 sq ft collection centre - about 81 cubic metres
|
One 50ml reed at ₹749, six fibre reeds, flipped weekly with gloves. Quiet room, small volume, no off switch needed and none missed. |
|
900 sq ft branch - about 106 cubic metres
|
A 130ml bottle at ₹1,249 for a longer interval, or a Sukoon at ₹1,899 where the entrance cycles constantly and a bottle cannot recover between cycles. |
|
1,800 sq ft branch - about 202 cubic metres
|
Still bottles for a quiet branch; a scheduled source where the fasting-sample peak is heavy. This is the band where door traffic decides rather than volume. |
|
4,000 sq ft hub - about 525 cubic metres
|
One machine, positioned from the air path, with run windows and the intensity key-locked to the estate level. View → |
Writing the specification per cubic metre is argued in standardising when every branch is a different size, the small-and-large question is dealt with in whether collection centres and hubs can share one identity, and the machine count is worked through in calculating how many machines a multi-branch business needs. SOSA makes no health or therapeutic claim of any kind, and no claim that scenting affects how a branch performs commercially.
Twelve areas, twelve heights
Send the list and we will convert every branch, assign a band and write the sentence. Multi-branch terms go through the contact page, and nothing is promised on them.
Identical machines in twelve different volumes guarantee twelve different rooms. Identical fragrance in twelve correctly sized volumes is the only kind of matching a customer can actually meet.
— Sonal Sahani, SOSA
The ladder, read against a mixed estate
Rungs assigned per branch, from a single table
The SOSA specification across twelve branches
One fragrance, one zero list, four hardware bands and a named owner per site. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA specification across twelve branches
Assigned per cubic metre, never per branch
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
Branches with more than about 400 cubic metres of public air | ₹11,999, run windows, adjustable intensity, key-lock, waterless, one per volume | ₹11,999 View → |
|
SOSA Angaan
|
A single flagship with a large ducted concourse | ₹25,999, 3,000m³, HVAC-connected - rare on a 400 to 4,000 sq ft estate | ₹25,999 View → |
 SOSA Meenar
|
A hospital-scale site, if the group ever has one | ₹38,500, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space | ₹38,500 View → |
Most of a twelve-branch estate sits below all three, on reeds at ₹749-₹1,349 or a Sukoon at ₹1,899. SOSA publishes no bulk pricing, no minimum order, no GST arrangement, no custom branding, no lead times, no installation service, no AMC and no warranty terms; multi-branch enquiries go to the contact page and nothing is promised on terms. There is no cold-air refill oil published for the Vaayu today - the 400ml runs 90+ days and re-supply must be confirmed with us in writing. Fragrance is an ambience decision like lighting or signage, with no health, therapeutic or clinical claim of any kind, and no claim that it affects how a business performs. Collection, processing, scan and control rooms stay unscented at every branch, 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.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The first mixed estate I helped size had eight branches and I made the mistake of writing the standard in square feet, because that is the number everybody already had. Two branches came back within a month saying it was far too much, and both of them turned out to have four-metre ceilings under an old commercial floor. We remeasured everything in cubic metres and the complaints stopped.
Since then I have been fairly blunt that measuring ceilings is the entire job. It is dull, it takes a tape and an afternoon per branch, and nobody wants to own it. But it is the difference between a standard that holds for years and one that gets quietly ignored by whichever branch it fits worst.
And I would rather sell you two machines and ten bottles than twelve machines, which is a strange thing for a supplier to write down and is nonetheless the correct specification. We make no health, therapeutic or clinical claim of any kind, and no claim that scenting affects how a branch performs commercially. 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
Can twelve branches of very different sizes share one signature scent?
Yes, and the scent is the easy part. One fragrance and one zero list travel across an estate for nothing. What has to vary is the hardware, because a 400 sq ft collection centre and a 4,000 sq ft hub hold roughly 81 and 525 cubic metres of public air respectively, and no single product serves both well.
Should every branch have the same scent machine?
No. Buying twelve identical units means the small branches run permanently at the bottom of the range in rooms a bottle would have served, and the specification is chosen against the middle of the estate rather than against any actual volume. Match the air, not the equipment.
Why specify in cubic metres rather than square feet?
Because ceiling heights vary across an estate assembled over several years, and a standard written in floor area will be wrong wherever they differ. A small floor plate under a four-metre ceiling can hold more air than a larger one under a low false ceiling, and the conversion takes ten seconds once somebody has measured.
Does SOSA offer chain pricing or an account for twelve branches?
No. There is no bulk pricing, no minimum order, no GST arrangement, no custom branding, no published lead times, no installation service, no AMC and no warranty programme. Multi-branch enquiries go through the SOSA contact page, and nothing is promised on terms until somebody replies to you directly.
What is the supply risk in standardising on one machine across an estate?
There is no cold-air refill oil published for the Vaayu today. The 400ml supplied in the box runs 90 days or more, and re-supply has to be confirmed with us in writing. For a single site that is a minor detail; for twelve branches it is a material constraint and the standard should record it as an open item rather than assume it.
One scent, four bands, twelve branches
SOSA — Clinic Scenting the same signature, different hardware
Standardise the fragrance and the zero list, convert every branch to cubic metres, and assign the source from a band table. Roughly 81 cubic metres at the smallest site and 525 at the largest, which is ₹749 at one end and ₹11,999 at the other. 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 rungs once more, for the two largest branches
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.