Here is the working, at a 10 ft ceiling throughout, which is a fair assumption for most Indian clinic buildings. The whole centre is 750 x 10 = 7,500 cubic feet, and 7,500 / 35.3 is about 212 cubic metres. Now split it. Reception and waiting at 250 sq ft is 2,500 cubic feet, about 71. Four treatment cabins at 100 sq ft each is 400 sq ft, 4,000 cubic feet, about 113. A corridor of 60 sq ft is 600 cubic feet, about 17. The WC, sluice and store at 40 sq ft together are 400 cubic feet, about 11. Those add back to 212, so the arithmetic is honest.
Now take away everything that gets nothing. The four cabins are at zero: a patient is lying back with a bare foot in someone's hands, the door is shut, the clinician is in that air all day, and dressings and instruments may be open. Minus 113. The WC and sluice are extraction problems rather than fragrance opportunities. Minus 11. The corridor is a fifteen-second room that connects to four doors you have decided to leave alone, so it is the last place you want a diffuser. Minus 17.
212 minus 113 minus 17 minus 11 leaves 71 cubic metres. That is a third of your building, and it is the entire purchase. Which is why the honest recommendation for a 750 sq ft centre with four cabins is a SOSA Sukoon at ₹1,899 running the water-based Hotel Collection from ₹299 - and not the Vaayu at ₹11,999, which is rated for approximately 1000 cubic metres and would be running at about one fourteenth of what it was built for.
Why does having more cabins make the purchase smaller? Because a closed door ends one connected body of air and begins another, so every cabin you add is a volume removed from the scenting problem rather than added to it. A 750 sq ft centre chopped into four cabins has a scented volume of about 71 cubic metres. A 500 sq ft clinic with one open front of house can easily be 142. The smaller-looking building is the bigger scenting job, and the number on the lease tells you nothing about which one you have.
Where should the machine go in a centre with four cabin doors? In the reception or waiting area, not the corridor - and that is the mistake almost everyone makes because the corridor is where the free socket is. A corridor connected to four doors acts as a plenum: put a diffuser there and you dose the corridor, leak into reception and test every cabin door in the building. Keep it in the room you meant to scent, away from a return grille that will pull it straight out, and at least a couple of metres from the corridor mouth.
Take your plan and write four columns: room, floor area, ceiling height, cubic metres. Then a fifth column that says scented or zero. Here is a typical 750 sq ft foot and ankle centre, worked at a 10 ft ceiling throughout so the numbers reconcile.
Reception and waiting, 250 sq ft. 250 x 10 = 2,500 cubic feet. 2,500 / 35.3 is about 71 cubic metres. Scented.
Four treatment cabins, 100 sq ft each, 400 sq ft in total. 400 x 10 = 4,000 cubic feet, about 113 cubic metres. Zero. Taken individually each cabin is 1,000 cubic feet, about 28 cubic metres - and if your cabins have dropped ceilings at 9 ft, which is very common where services run above, each is 900 cubic feet or about 25, and the four together are 3,600 cubic feet, about 102.
Corridor, 60 sq ft. 600 cubic feet, about 17 cubic metres. Zero, and deliberately so.
WC, sluice and store, 40 sq ft between them. 400 cubic feet, about 11 cubic metres. Zero.
Those four figures add to 212, which is exactly 750 x 10 / 35.3, so nothing has been lost in the arithmetic. And the scented column contains one entry: 71 cubic metres. That is 33 per cent of your building, and it is the only number that should influence what you buy.
Against 71 cubic metres, the honest shortlist is short. A SOSA Sukoon at ₹1,899 with the water-based Hotel Collection from ₹299 is the default. If your waiting area runs from nine in the morning to eight at night and nobody has a spare minute to refill at lunch, the SOSA Megh at ₹3,499 and its 6 litre tank buys endurance rather than reach. And a reed diffuser from ₹749, or two at opposite ends of a long waiting area, is still a perfectly respectable answer at this volume if you would rather have nothing plugged in.
What 71 cubic metres does not want is the Vaayu at ₹11,999. It is rated for approximately 1000 cubic metres of connected air, and SOSA's own copy also states 2,000 to 3,000 sq ft scented evenly. Your scented volume is about one fourteenth of that. Even if you threw every door in the building open and scented all 212 cubic metres, which you should not, you would be at about a fifth of the rating. The Vaayu is a genuinely good machine and this is not its building.
One caveat that matters more here than in a smaller clinic: fragrance adds scent and never removes odour, and a centre running four cabins all day generates more of the thing people hope fragrance will solve, not less. Source, then ventilation, then cleaning and laundering, then fragrance. Nothing here is clinical advice, no SOSA product is a clinical or air-treatment device, and the treating clinician's judgement about their own rooms and patients overrides every recommendation on this page. A portion of every SOSA order supports girl-child education through Nanhi Kali.
That last clause is worth sitting with, because it inverts what almost every clinic owner assumes when they start pricing this. The instinct is that a bigger, busier, more compartmented centre needs a bigger machine than a small open clinic. The physics says the opposite. A closed door ends one connected body of air and begins another. So a 500 sq ft clinic where reception, corridor and consultation are all genuinely open to each other is one volume of 5,000 cubic feet, about 142 cubic metres. A 750 sq ft centre chopped into a reception and four sealed cabins is a scenting problem of 71. The larger building is half the job.
Which means that when somebody quotes you a machine off a square-footage figure, they are not sizing your clinic. They are sizing a hypothetical open hall the same size as your clinic, which is not a building you own. Ask them which rooms they included. If the answer includes the treatment cabins, they have priced a scenting plan you would never implement.
The second thing a four-cabin centre changes is where the machine goes, and here the compartmentation works against you rather than for you. Four doors is four leak paths. A door undercut is a gap the width of a finger running the length of the door; a shared return grille joins rooms the plan says are separate; and a corridor with four doors off it behaves like a plenum, which is a polite way of saying it distributes whatever is in it to everything it touches. So the placement rule in a multi-cabin centre is stricter than anywhere else: the diffuser lives in the room you meant to scent, well away from the corridor mouth, and not beside a return grille.
And the third thing is people. A four-cabin centre has four clinicians plus a receptionist in that building for eight to ten hours a day, six days a week. They are the most exposed human beings in the place by a wide margin, and they are also your only reliable instrument, because your own nose adapted to the building within minutes of walking in this morning. Ask all five before you buy and again a fortnight after. Anything they report is a recalibration signal, never a tolerance problem.
The subtraction - 212 cubic metres of building, 71 cubic metres of purchase
Total square footage is the wrong unit for this decision, and a multi-cabin centre is where that becomes impossible to ignore. What decides the purchase is the connected air volume of the rooms you have decided to scent, and in a foot and ankle centre that is the reception and waiting area alone. Everything else - four cabins, the procedure room, the casting or orthotics bench, the sluice, the store - is at zero by design, and the mechanism that turns that intention into physics is a door that stays shut.
So this page is really a page about subtraction, and the subtraction is worth doing on paper rather than in your head, because the total will surprise you. In the four worked examples I see most often, the scented volume of a multi-cabin centre lands between a quarter and 40 per cent of the building. Which means that three quarters of what you are paying rent on has no bearing at all on what machine you should buy.
It is worth being clear about why the cabins are at zero, because it is a specification rather than a hedge and it should be written on the plan the same way the register is. A treatment cabin is small: 80 to 120 sq ft, which at a 9 ft ceiling is 720 to 1,080 cubic feet, roughly 20 to 31 cubic metres. That is a fraction of a reception, so a given amount of fragrance reaching it produces a much higher concentration than the same amount in the front of house. The door is shut for privacy. The patient is lying back, often with a foot elevated, for twenty to forty minutes. The clinician is at close range, in that same small volume, for the whole working day - not for one appointment but for all of them. Dressings, instruments and materials may be open. Every one of those factors points the same way, and none of them is improved by an ambient fragrance.
The second reason this page exists is that a four-cabin centre is exactly the kind of building that gets sold a machine it does not need. It looks substantial. It has a proper reception, a corridor, a staff room and a brand on the wall. It reads, to anyone quoting from a floor plan, like a 2,000 sq ft commercial job scaled down. And the arithmetic says it is a 71 cubic metre reception with a very expensive-looking envelope around it.
The third reason is that multi-cabin centres have a distinctive failure mode. When the front of house is right and a clinician reports that fragrance is reaching cabin two, the instinct is to turn the machine down globally, which quietly ruins the reception in order to fix a leak. The right response is almost always a placement and airflow fix - move the machine away from the corridor mouth, check the door undercut, check whether cabins two and three share a return grille with reception, and check whether the corridor door is ever actually shut. Those are ten-minute investigations that cost nothing, and they beat turning the whole plan down every time.
Floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. Do it by hand for every room and state the ceiling height you used, because clinics in India are commonly 9 to 12 feet and the difference between the ends of that range is a third of the air in the building. Never assume 16 - that is a showroom number, and a supplier who uses it is inflating your volume and therefore your machine.
The cabins. Four at 100 sq ft is 400 sq ft. At 10 ft that is 4,000 cubic feet, about 113 cubic metres. At 9 ft, which is very common in cabins with a dropped ceiling for services, it is 3,600 cubic feet, about 102. Individually, at 9 ft a 100 sq ft cabin is 900 cubic feet, about 25 cubic metres - and the general range for a treatment cabin of 80 to 120 sq ft at 9 ft is 720 to 1,080 cubic feet, about 20 to 31. All of it is at zero. That is between 102 and 113 cubic metres removed from the problem at a stroke, and it is roughly half the building.
The service tail. The WC, the sluice and the store come to perhaps 40 sq ft between them, which at 10 ft is 400 cubic feet, about 11 cubic metres. All at zero. The WC in particular gets treated as a fragrance problem in every business in India and is almost always an extraction problem first. Fix the fan. Once the fan works properly, a single reed in there is plenty, and it should be a quieter version of what the front is running rather than a different character announcing itself down a corridor with four doors off it.
The corridor. Sixty square feet at 10 ft is 600 cubic feet, about 17 cubic metres, and this is the one room where the answer is genuinely "it depends". If there is a door between reception and the corridor and it is normally shut, the corridor is a separate volume and you subtract it. If the corridor opens straight off the waiting area, which is the commoner arrangement, it is connected and your scented volume is 71 plus 17, about 88 cubic metres, whether you like it or not. That is the swing factor in a multi-cabin centre and it is worth being deliberate about, because a corridor that is connected to your reception is also connected to four cabin doors.
What is left. Reception and waiting at 250 sq ft, 2,500 cubic feet, about 71 cubic metres. That is the purchase. Seventy-one, or 88 if the corridor is in.
And here is the counterintuitive finding that this page exists to state. A more compartmented building is a smaller scenting job. Compare like for like: a 500 sq ft clinic where reception, corridor and consultation are genuinely one open space is 5,000 cubic feet, about 142 cubic metres. Your 750 sq ft centre with four cabins is 71. You have half the scenting problem in 50 per cent more building. So when a quotation arrives sized off "750 sq ft", ask which rooms were included, because a machine chosen against 212 cubic metres is a machine chosen for a building you do not have.
A closed door ends one connected body of air and begins another. That is not a metaphor. A machine cannot push scent through a solid door, and it does not particularly want to push it against a pressure difference either. This is the single most useful physical fact in scenting a clinic, because it is what makes "scented reception, unscented cabins" an arrangement you can actually deliver rather than a claim you are hoping nobody tests.
But four doors is four opportunities for that mechanism to be partially defeated, and in a multi-cabin centre the leaks are predictable enough to check in an afternoon.
The door undercut. Almost every internal door has a gap at the bottom, usually finger-width, running the whole width of the door. That gap exists for airflow and it works. If a cabin's air is at slightly lower pressure than the corridor's - which happens whenever the corridor has supply air and the cabin does not - the undercut becomes a slow, continuous inlet. You are not going to seal it and you should not want to, because that gap is part of how the cabin gets fresh air. What you do instead is keep the source away from it.
The shared return grille. This one catches people out because the plan says the rooms are separate. If reception and cabin two both feed the same return, the ducting joins two volumes that a door has separated. Look up. If you can see a return grille in reception and another in a cabin, find out where they go. The symptom is very specific: reception smells right at the desk but of nothing at the far end, and a clinician in a cabin down the corridor says they can smell it. That is not a level problem and turning the machine down will not fix it properly. It is a placement problem, and the fix is to move the diffuser out of the airstream feeding that return.
The corridor as a plenum. A corridor with four doors off it is a distribution device. Whatever is in the corridor gets presented to all four doors continuously, and every time one of them opens - which in a four-cabin centre is dozens of times an hour - a slug of corridor air goes into the cabin. This is why the corridor is the worst possible place to put a diffuser and, unfortunately, the place it usually ends up, because the corridor is where the spare socket is. Do not do it. If the only power is in the corridor, either have a socket added in reception or buy a reed diffuser from ₹749, which can stand exactly where you want it because it needs nothing.
The propped door. The commonest defeat of all, and it is behavioural rather than architectural. Cabin doors get wedged open between patients for airing, which is good practice and should absolutely continue. But if the machine is running at a level set on the assumption that the doors are shut, then twenty minutes of propped-open airing between every appointment is a different building. Two fixes, both free: air the cabins with the corridor door to reception shut rather than open, and set the reception level low enough that a propped cabin door is not an event.
None of this, ever, is a reason to reduce ventilation so the fragrance holds better. A well-ventilated centre is genuinely harder to scent and that is a good problem, especially in a building where four patients at a time have their shoes off. Ventilation wins. You solve it with placement and level.
A reed diffuser from ₹749 is passive - no plug, no noise, nothing to switch off, lasting about 6 to 10 weeks - and in a 250 sq ft waiting area two at opposite ends is often better than one, at under ₹1,700 together. A SOSA Boond at ₹899 is a small ultrasonic for one enclosed room and is honestly a little under-scaled for a 71 cubic metre reception unless the room is long and narrow and you are placing two. A SOSA Sukoon at ₹1,899 is the natural answer: the larger ultrasonic, made for a reception and waiting area, running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999. A SOSA Megh at ₹3,499 is the same architecture with a 6 litre tank, and in a busy four-cabin centre running eleven-hour days that endurance is the reason to choose it - not extra reach.
And then the SOSA Vaayu at ₹11,999, which is where this page has to be honest in a way that costs SOSA a sale. It is waterless cold-air nebulising of undiluted oil, so no water, no humidity and no wet residue anywhere - which is genuinely the right property for a clinical building and is the argument people quite reasonably reach for. It has a Bluetooth app and timer, a 400ml tank, freestanding or wall and HVAC mounting, and runs on DC 12V / 1A at 5W so it needs a live socket. It is rated for approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. Against 71 cubic metres of reception that is a factor of about fourteen. Against 88, if your corridor is connected, it is about eleven. Neither of those is a close call.
The counter-argument I hear deserves a straight answer: "but the waterless part matters in a clinic, and I would rather not have a water tank in the building." That is a real preference. My answer is that it is a reason to talk to somebody on WhatsApp about what you are actually solving, not a reason to buy fourteen times the capacity you need. A machine running far below its rating is not performing beautifully - it is sitting at its lowest setting, where it has the least fine control.
What genuinely changes the recommendation at this size is not the cabin count at all. It is whether your front of house is unusually large or open. If your 750 sq ft centre is arranged with a generous double-height waiting lounge, a retail or orthotics display, and reception all as one continuous space of 400 or 450 sq ft at 12 ft - which is 4,800 to 5,400 cubic feet, about 136 to 153 cubic metres - then the conversation moves up a step, and a Megh or a properly discussed Vaayu becomes arguable. That is a front-of-house question, not a building-size question, and it is why the cabins were never the point.
Two systems, and they are not interchangeable, which matters in a centre that may expand. The ultrasonics - Boond, Sukoon and Megh - are water-based cool-mist machines running the ₹299 Hotel Collection. The Vaayu and the ducted machines - 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 - run waterless nebulising oil. The ₹299 water-based bottle never goes into a Vaayu or an HVAC machine, so if you expect to move up when you take a second floor, say so before you commit to a register.
- List every room with its floor area and its real ceiling height on one sheet of paper.
- Convert each to cubic metres, then mark every cabin and service room as zero.
- Add up only the rooms still marked scented - that total is what you are buying for.
- Place the machine in that room, away from the corridor mouth and any return grille.
One register at the front, and four doors that get nothing
One register, held at one level, in one room. In a multi-cabin centre that discipline matters more than the choice itself, because you have four doors and a corridor between your machine and a patient who is already lying down.
There are seven registers in the water-based Hotel Collection, each one SOSA's own hotel-inspired interpretation - SOSA is independent and is not affiliated with, endorsed by or connected to any hotel brand, and that is worth stating plainly rather than trading on somebody else's name.
The clinic filter is the same as everywhere in this bank: clean and unsweet reads right. A sweet or plush character in a clinical setting reads as covering something, because sweetness sitting over a warm enclosed room is what covering usually smells like in ordinary life. In a centre with four cabins that reading is amplified, because a patient walking down a corridor past closed doors is already primed to wonder what is behind them.
So the two natural answers are White Tea Serenity - white tea, aloe and cedar, clean and weightless and spa-like - and Quiet Luxury - white tea, bergamot and cedar, hushed and polished. Both are built on white tea, which is about as transparent as a room register gets, and the cedar in each gives enough structure that the room does not read as nothing. Forest Suite - cedarwood, vetiver and green leaves, grounding and biophilic green - is the third good answer and the natural one for a centre with timber, concrete, plants or a sports-medicine look. It reads as structural rather than decorative, which means a mixed patient list receives it as neutral.
Tea Garden - jasmine, green tea and white tea - is the best floral option because the jasmine sits inside tea rather than on top of it, but it is warmer than the white-tea pair and wants a lower setting. Warm Welcome - citrus, floral and sandalwood - is a genuine threshold register for a family-practice front of house, used with more restraint than a hotel would use it. Old-World Glamour - amber, violet and woods - is a beautiful register and the wrong one for a clinical building. Lobby Bar - citrus, pepper and amber, bold and after-dark - has essentially no home in a foot and ankle centre.
The reeds are their own five registers rather than Hotel Collection ones, and they are a real option at 71 cubic metres. Morning Freshness at ₹749 is Malabar lemon, mint and eucalyptus and reads cleanest at a clinic desk. Mountain Breeze at ₹849 is Himalayan pine, sage and cedar, closest to the woody register a centre with timber wants. Garden Bloom at ₹799 is British rose and night-blooming jasmine and Evening Calm at ₹799 is Kashmir lavender and chamomile, both more floral than most clinic front desks want. Fresh Brew at ₹849 is Coorg coffee and Kerala vanilla, lovely at home and wrong at a clinical desk for the sweetness reason above. The 130ml is from ₹1,249, refills are ₹2,399 for 300ml and ₹3,499 for 500ml, and a reed lasts about 6 to 10 weeks.
What I will not do is rank any of these against each other on measured throw or longevity. SOSA does not publish that comparison, nobody can give you one that survives contact with your particular 71 cubic metres and your particular corridor, and the variables that dominate are all yours rather than the blend's. And one register, not four. A centre that runs a different character in reception, in the corridor and in the staff room has built an olfactory argument that a patient walks through in fifteen seconds.
| Scent | Why it suits the mood |
|---|---|
| Reception and waiting · about 71 m3 · scented | 250 sq ft at a 10 ft ceiling is 2,500 cubic feet, about 71 cubic metres. This is the opportunity and in most centres it is the only one. Dwell is unpredictable - eight minutes if the list is on time, an hour if it is not - so set the level for the long tail rather than the average, which means lower than instinct suggests. Everything you buy is bought for this number. |
| Four treatment cabins · about 113 m3 · zero | Four at 100 sq ft is 4,000 cubic feet at 10 ft, about 113 cubic metres, or about 102 if the cabins have dropped ceilings at 9 ft. Individually 20 to 31 cubic metres each, which is why they over-scent fastest of anything in the building. Patient lying back, door shut, clinician at close range all day, dressings open. Not a low level - nothing. Write it on the plan. |
| Corridor · about 17 m3 · the swing factor | 60 sq ft at 10 ft is 600 cubic feet, about 17 cubic metres. If a door separates it from reception it is out and your total stays at 71. If it opens straight off the waiting area it is in, and you are scenting about 88. Either way it is the one room a diffuser must never stand in, because a corridor with four doors off it distributes whatever is in it to all of them. |
| WC, sluice and store · about 11 m3 · zero | 40 sq ft between them, 400 cubic feet at 10 ft, about 11 cubic metres. These are extraction, laundry and housekeeping questions rather than fragrance opportunities. Fix the WC fan first - it is almost always an extraction problem being treated as a fragrance one - and then a single quiet reed in there is plenty, matching the front rather than announcing itself. |
So the buying answer for a 750 sq ft foot and ankle centre with multiple cabins, in the order the money should actually be spent.
First, the free work, and in a four-cabin centre there is more of it than in a small clinic because there are four rooms generating the same thing. Give footwear a defined home away from the seating and away from every treatment couch - a rack, a cubby, a tray, a shelf with a door. Give patients somewhere to put a sock other than inside a warm shoe. Air each cabin between patients rather than at the end of the day, because a cabin aired at seven has been smelling of itself since three, and with four cabins that is four rooms compounding. Launder the waiting-area upholstery, which is the most under-appreciated reservoir in any clinic. Run the WC and sluice extraction as routine rather than when somebody remembers. Take the waste out of the building. None of that is a purchase, and all of it beats a machine.
Then buy for 71 cubic metres. A SOSA Sukoon at ₹1,899 with the water-based Hotel Collection from ₹299 is the default, the Megh at ₹3,499 if eleven-hour days make refilling a nuisance, and two reed diffusers from ₹749 each if you would rather have nothing plugged in at all. The pack of seven 15ml bottles at ₹1,799 is the sensible way to test registers in your own reception rather than choosing from a description, and you should judge each on day five rather than the first afternoon.
Then place it properly, which in this building matters as much as the machine. In the reception or waiting area, not the corridor. Away from any return grille. Not on the counter at nose height where a patient leans in to give their name. And with the corridor door shut where that is practical, because a corridor with four doors off it is a distribution device for whatever is in it.
Then leave it alone for a month. Write the setting on paper next to the machine so that "what are we running" has an answer rather than an opinion. Judge from the doorway on a Monday morning after the centre has been shut, not from behind the desk at five. Ask your four clinicians and your receptionist - the five people in that air eight to ten hours a day - and treat anything they say as a recalibration signal rather than a tolerance problem.
And the standing arrangement that every multi-cabin centre should have written down before it is needed: a patient who tells you they are sensitive to fragrance is accommodated as a matter of course, asked at booking rather than at the door, with "off" a state that anybody on the team can set for a named room without a discussion and without the patient feeling they have asked for a favour.
If your centre is a different size, the arithmetic continues either side of this page. At 500 sq ft the question stops being how much and becomes which architecture, passive or controlled, and that is reed diffuser or scent machine for a 500 sq ft foot clinic. At 1,000 sq ft a commercial machine genuinely enters the conversation for the first time, along with the very common case where it still does not, in what fragrance system makes sense for a 1,000 sq ft podiatry clinic. And once a physiotherapy gym is added to the plan, the biggest room in the building becomes the one that is most firmly at zero - that is how to approach scenting a 1,500 sq ft foot, orthotics and physiotherapy centre.
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. That conversation happens with your floor plan in hand on WhatsApp at +91 96192 18531. Bulk orders are welcome, custom label or logo on product is available, and bespoke composition made only for your practice is a real SOSA service discussed there rather than priced on a page - though the cheaper honest answer comes first, which is that one of the seven registers 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 clinic is almost always the reception and waiting area alone - 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
A foot clinic has a harder job than most places I write about, and it is worth saying plainly: your patients take their shoes and socks off, all day, in rooms that are often small and often air-conditioned with the windows shut. That is a real environment, and no bottle solves it. What solves it is where the shoes go, how the air moves, and what gets cleaned and laundered.
So the order matters more here than anywhere. Find the source. Move the air. Clean the surfaces and the soft things. Only then, in the reception where people wait, add one low register and hold it. Fragrance adds scent - it never subtracts one - and a scent laid over an odour makes a third smell that is usually worse than either.
The other thing I say to every clinician who asks me: the treatment rooms are not the opportunity. A patient lying back with a foot in someone's hands, a room with instruments and dressings in it, a person who has told you they react to fragrance - none of those want an ambient scent, and I would rather lose the second machine than pretend otherwise. Your clinical judgement about your own rooms outranks anything I have written here.
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 a medical device, a clinical product or an air-treatment device, and nothing in this guide is clinical advice - the treating clinician's judgement about their own rooms and patients overrides every recommendation here. 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.