★ SOSA · clinics, polyclinics & medical centres
Every one of these starts the same way: which rooms are clinical, what does housekeeping already know is wrong, and what is the ceiling height
★ ★ ★ ★ ★
★★★★★
"I described the whole place — 5,000 sq ft, six departments, one waiting hall — and the answer began by taking four rooms out of scope."
Four rooms removed
★★★★★
"Cleaning smell every morning, patients had mentioned it. The fix was the mopping schedule and a window. We bought the machine afterwards, for a different reason."
Schedule, then machine
★★★★★
"Three floors and a lobby. I wanted a number and got a calculation instead, which was more useful."
A calculation
★★★★★
"Fitting out a new clinic. Being told where fragrance belongs in the sequence — after ventilation, after housekeeping — shaped the fit-out itself."
Fitted into the sequence
★★★★★
"We have patients who react to strong smells and we still wanted a decent lobby. Zoning and a low setting did both."
Both, by zoning
★★★★★
"Four polyclinics, one recognisable fragrance, and a straight answer on what it would cost per year. No claims attached."
Costed, not claimed
★★★★★
"I described the whole place — 5,000 sq ft, six departments, one waiting hall — and the answer began by taking four rooms out of scope."
Four rooms removed
★★★★★
"Cleaning smell every morning, patients had mentioned it. The fix was the mopping schedule and a window. We bought the machine afterwards, for a different reason."
Schedule, then machine
★★★★★
"Three floors and a lobby. I wanted a number and got a calculation instead, which was more useful."
A calculation
★★★★★
"Fitting out a new clinic. Being told where fragrance belongs in the sequence — after ventilation, after housekeeping — shaped the fit-out itself."
Fitted into the sequence
★★★★★
"We have patients who react to strong smells and we still wanted a decent lobby. Zoning and a low setting did both."
Both, by zoning
★★★★★
"Four polyclinics, one recognisable fragrance, and a straight answer on what it would cost per year. No claims attached."
Costed, not claimed
★ ★ SOSA Vaayu — waterless, timed, key-locked ₹11,999 SOSA Aangan — up to 3,000 m³, HVAC-ready ₹25,999
✓ No medical claims. A diffuser does not purify, disinfect or treat anything ✓ Clinical rooms stay fragrance-free · fix the source before you cover a smell ✓ Drain traps, bins and the AC drain pan first. Those three are free
Founder Diaries · Clinics & Medical Centres · A Whole-Facility Walkthrough
What is left to scent: entrance and lobby, reception and registration, the shared waiting hall, the inter-departmental corridors, the lift lobby, administration and the refreshment corner — roughly 2,700 sq ft.
The arithmetic: 2,700 ÷ 10.76 = 251 m², × 2.9 m ceiling = about 730 m³. One Vaayu is rated to 1000 m³, so one machine, with headroom.
Where it stands: wall-mounted at about 2.1 m on the reception wall where the corridor opens off the lobby, pointed along the way the air already moves, key-locked, lowest useful setting, on a timer that matches your opening hours. Not above the registration desk, and not in the corridor.
Vaayu · 1000 m³ rated₹11,999Shop → 
The lightest of the scentsfrom ₹299Shop → 
Reeds · the admin cabinfrom ₹749Shop →
I will answer this the way I would answer it on the phone, which means I am going to ask you three things before I say anything about a machine. Which of your rooms are clinical. What your housekeeping supervisor already knows is wrong. And what the ceiling height is in the waiting hall. Those three answers decide the whole of it, and the reason I ask them in that order is that the first one usually removes about half of your five thousand square feet from the conversation, the second one occasionally removes the purchase altogether, and the third one is the only number that turns the remaining floor area into something a diffuser is actually rated against. For a 5,000 sq ft clinic with six departments and one shared hall, the honest answer is almost always one machine, standing in one particular place, running on one low setting for the opening hours — and roughly 2,300 of your 5,000 square feet never entering the sum at all. I sell the machine, so you are entitled to be sceptical about the part where I say you need fewer of them than you expected. Work the walkthrough yourself and you will get the same answer I would.
Quick answers — read this first
Out of scope before anything else, and these four are the ones clinics forget: the blood- and sample-collection room · the dressing and minor-procedures room · the pathology laboratory · the dispensing counter behind the pharmacy window. Add your eight consultation and examination cabins, the dental surgery, the paediatric examination room, the toilets, the sluice and the cleaning store, and about 2,300 of your 5,000 sq ft has left the calculation.What is left to scent: entrance and lobby, reception and registration, the shared waiting hall, the inter-departmental corridors, the lift lobby, administration and the refreshment corner — roughly 2,700 sq ft.
The arithmetic: 2,700 ÷ 10.76 = 251 m², × 2.9 m ceiling = about 730 m³. One Vaayu is rated to 1000 m³, so one machine, with headroom.
Where it stands: wall-mounted at about 2.1 m on the reception wall where the corridor opens off the lobby, pointed along the way the air already moves, key-locked, lowest useful setting, on a timer that matches your opening hours. Not above the registration desk, and not in the corridor.
The short answer
Short answer: think about a 5,000 sq ft six-department clinic as two buildings rather than one. The clinical building — consultation and examination cabins, the dressing and minor-procedures room, blood and sample collection, the laboratory, dispensing, the dental surgery and paediatric examination — stays fragrance-free with its doors shut, and in a typical plan that is about 2,300 sq ft, or 46 per cent. The public building is the entrance, reception, the shared waiting hall, the inter-departmental corridors, the lift lobby, administration and the refreshment corner, about 2,700 sq ft. Only the second building enters the coverage sum.
The order, and why: clinical rooms out first, because that is the decision that changes the size of the job. Then whatever housekeeping already knows is wrong — a dry drain trap, a dressing bin off schedule, a soiled-linen route crossing the public corridor, an air-conditioning drain pan — because every one of those is free to fix and a fragrance laid over any of them removes the signal rather than the smell. Then the ceiling height, which is the only figure that turns square feet into cubic metres. The machine is the fourth question, not the first.
The answer, costed: 2,700 sq ft at a 2.9 m ceiling is about 730 m³, which is one Vaayu at Rs 11,999 — waterless cold-air nebulisation with no standing water tank, rated to 1000 m³, a 400ml fill lasting about seventy-five days, app control with 1h/4h/8h/24h timers, under 38 dB, auto-stop and a key-lock for a public hall. The Aangan at Rs 25,999 covers up to 3,000 m³ and is overselling at this size. Free shipping above Rs 499. No clinical claim is made or implied: a diffuser is not an air purifier.
In this guide
Four rooms out, then the cabins
The sum shrinks · ₹0
About 730 m³ of public volume
Vaayu · ₹11,999
The admin cabin, if anywhere
Reeds · from ₹749
Straight answer
How should a 5,000 sq ft multi-speciality clinic with six departments and one shared waiting area think about fragrance across the whole facility?
1. Stop thinking about the facility and start thinking about the volumes a door closes. Five thousand square feet is a leasing number. A diffuser is rated in cubic metres of connected air, and in a clinic the connected air is nothing like the plan area, because most of your rooms spend the working day behind a closed door. The question is not how big the clinic is. It is how big the one open public volume is, and what its ceiling height is.
2. Take four rooms out of scope before you measure anything, and then take the cabins out too. The blood- and sample-collection room, the dressing and minor-procedures room, the pathology laboratory and the dispensing counter behind the pharmacy window. Then your eight consultation and examination cabins, the dental surgery, the paediatric examination room, and the toilets, sluice and cleaning store, which are a housekeeping subject rather than a scenting one. In a 5,000 sq ft plan that is about 2,300 square feet, and it is gone from the sum entirely.
3. Ask housekeeping what they already know is wrong, and fix that first, for nothing. A mug of water down every floor gully, sluice, unused basin and barely used toilet, sixty minutes before opening, by a named person with a sheet to sign. Dressing waste and sharps on a named collection time with lids that close. Soiled linen in closed bags on a route that does not cross the public corridor. The air-conditioning drain pan named in the maintenance scope. Those four are free, and in a facility of this size they are more often the complaint than anything a machine would address.
4. Then do the arithmetic on what is left. Entrance and lobby, reception and registration, the shared waiting hall, the inter-departmental corridors, the lift lobby, administration and the refreshment corner: about 2,700 sq ft. Divided by 10.76 that is 251 square metres; multiplied by a 2.9 metre ceiling, about 730 cubic metres.
5. One machine, and it matters where it stands. The Vaayu at ₹11,999 is rated to 1000 m³, so 730 m³ is one unit with headroom rather than two units with an argument. Wall-mounted at about 2.1 metres on the reception wall at the point where the corridor opens off the lobby, pointed along the direction the air already travels, key-locked, on the lowest setting that registers, on a timer that starts thirty minutes before your first appointment and stops at close.
6. And one scent for the whole public building, not one per department. Six departments do not get six fragrances. A patient walking from registration to orthopaedics should not cross a boundary, and which departments get it and which do not is a zoning question rather than a palette one. This is housekeeping and presentation. It is not treatment, it does not calm anybody, and a diffuser does not clean air.
A portion of every order supports girl-child education through Nanhi Kali.
2. Take four rooms out of scope before you measure anything, and then take the cabins out too. The blood- and sample-collection room, the dressing and minor-procedures room, the pathology laboratory and the dispensing counter behind the pharmacy window. Then your eight consultation and examination cabins, the dental surgery, the paediatric examination room, and the toilets, sluice and cleaning store, which are a housekeeping subject rather than a scenting one. In a 5,000 sq ft plan that is about 2,300 square feet, and it is gone from the sum entirely.
3. Ask housekeeping what they already know is wrong, and fix that first, for nothing. A mug of water down every floor gully, sluice, unused basin and barely used toilet, sixty minutes before opening, by a named person with a sheet to sign. Dressing waste and sharps on a named collection time with lids that close. Soiled linen in closed bags on a route that does not cross the public corridor. The air-conditioning drain pan named in the maintenance scope. Those four are free, and in a facility of this size they are more often the complaint than anything a machine would address.
4. Then do the arithmetic on what is left. Entrance and lobby, reception and registration, the shared waiting hall, the inter-departmental corridors, the lift lobby, administration and the refreshment corner: about 2,700 sq ft. Divided by 10.76 that is 251 square metres; multiplied by a 2.9 metre ceiling, about 730 cubic metres.
5. One machine, and it matters where it stands. The Vaayu at ₹11,999 is rated to 1000 m³, so 730 m³ is one unit with headroom rather than two units with an argument. Wall-mounted at about 2.1 metres on the reception wall at the point where the corridor opens off the lobby, pointed along the direction the air already travels, key-locked, on the lowest setting that registers, on a timer that starts thirty minutes before your first appointment and stops at close.
6. And one scent for the whole public building, not one per department. Six departments do not get six fragrances. A patient walking from registration to orthopaedics should not cross a boundary, and which departments get it and which do not is a zoning question rather than a palette one. This is housekeeping and presentation. It is not treatment, it does not calm anybody, and a diffuser does not clean air.
A portion of every order supports girl-child education through Nanhi Kali.
TL;DR: four rooms out of scope, then the eight cabins, then the dental surgery and paediatric examination, then the service rooms — about 2,300 of your 5,000 sq ft. The remaining 2,700 sq ft at a 2.9 m ceiling is roughly 730 m³. That is one Vaayu at ₹11,999, wall-mounted at 2.1 m on the reception wall, key-locked, on low, on a timer. Not two machines, and nothing at all inside a clinical room.
A 5,000 sq ft walkthrough, in the order it actually goes
SOSA commercial scenting from ₹899
Three questions before any machine. Which rooms are clinical — that is about 2,300 sq ft out of the sum. What housekeeping already knows is wrong — traps, bins, the linen route and the drain pan, all free. What the ceiling height is — the only figure that turns 2,700 remaining square feet into about 730 cubic metres. Then one machine: the Vaayu at ₹11,999, rated to 1000 m³. The Aangan at ₹25,999 is for 8,000–10,000 sq ft and would be overselling here. An alcohol-free reed diffuser from ₹749 suits the administrative cabin. Free shipping above ₹499.
The walkthrough, in the order I would do it
What follows is the order I use on site, and the order matters because each step makes the next one smaller. If you start with the machine you will buy for 5,000 square feet. If you start with the rooms you will buy for 2,700, and if housekeeping gets its turn before procurement does, a reasonable number of clinics discover they did not have a fragrance question at all. I have done this walk in enough multi-speciality clinics to know roughly what it will find in yours: about forty-six per cent of your plan area is clinical or service and leaves the conversation immediately, the shared hall is the only volume that genuinely needs holding, there is a dry trap somewhere nobody has watered since the monsoon, and the corridor outside the dressing room is the one place a patient has actually commented on. None of that is a criticism of how the clinic is run. It is just what a 5,000 sq ft plan with six departments and one hall tends to look like when you walk it with a notebook instead of a brochure.
1
STEP ONE
Which rooms are clinical — and the four that clinics forget to exclude
Start with a printed floor plan and a red pen, and strike out everything that is going to be fragrance-free. The eight consultation and examination cabins go first and nobody argues about those: a physician is trained to notice what a room and a patient smell of, and a background you have introduced is a background they have to work around. Then the four rooms that clinics routinely leave in by accident, which are the ones I want to name properly. One: the blood- and sample-collection room. People faint in collection rooms. Whatever is in that air at the moment somebody goes pale is going to be part of what they remember about your clinic, and adding anything to it is a gamble with no upside. Two: the dressing and minor-procedures room. That room has its own smell and its own bin schedule, and the corridor outside it is a far more common complaint than the room itself; the correction there is waste timing and door discipline, not scent. Three: the pathology laboratory. This is a conversation with your own quality lead and the answer is no before you ask it. Four: the dispensing counter behind the pharmacy window. Dispensing is a place where somebody reads a label and counts, and the public side of the window is scented while the working side is not, which is a distinction a door and a hatch make for you. Add the dental surgery, the paediatric examination room because children are not in a position to choose, and the toilets, sluice and cleaning store, which belong to housekeeping. In a 5,000 sq ft plan that is around 2,300 square feet struck out, and the full fragrance-free list is worth reading before you finalise yours.
2
STEP TWO
What housekeeping already knows is wrong — and all of it is free
Before the plan goes to procurement, give it to your housekeeping supervisor and ask one question: what in this building smells, and where. In my experience that person can answer in under a minute and has been waiting to be asked. The four answers I expect, in the order they are worth money: a dry drain trap, a bin schedule, a linen route and an air-conditioning drain pan. The traps are the big one and they cost nothing. A U-bend water seal evaporates in two to four weeks of disuse and then the drain vents into the room, and a 5,000 sq ft clinic with six departments has floor gullies in the sluice, basins in cabins that are used twice a week, an unused shower in whichever room was once going to be something else, and a toilet on the quiet side of the corridor. A mug of water down each of them at sixty minutes before opening, by a named person with a sheet to sign, is the single highest-value free line in an Indian clinic. The bins are a schedule, not a product. Dressing waste and sharps collected at named times, lids that actually close, nothing held in a public corridor between collections. The linen route is a drawing. Soiled linen in closed bags on a path that does not cross the shared waiting hall, and never parked in a service lobby over a weekend. The drain pan is a clause in a contract you already pay for. Ask your air-conditioning vendor to name the drain pan, the condensate line and trap, the blower wheel and two coil cleans a year in the maintenance scope, which for a ten-unit clinic is mostly a renegotiation rather than a new cost. If any of those four is live, fix it and wait a fortnight before you decide about a machine, because a fragrance over a dry trap is two smells and the whole checklist exists to keep that from happening.
3
STEP THREE
The ceiling height, the arithmetic, and exactly where the machine stands
Now the number, and it is a short sum. Cubic metres equal floor area in square feet divided by 10.76, multiplied by the ceiling height in metres, counting only the volumes that are actually scented. Your remaining public area is the entrance and lobby at about 680 sq ft, reception and registration at 260, the shared waiting hall at 1,100, the inter-departmental corridors at 420, the lift and stair lobby at 120 and administration with the refreshment corner at 120, which is 2,700 square feet. Divided by 10.76 that is 251 square metres. At a 2.9 metre ceiling that is about 730 cubic metres. One Vaayu is rated to 1000 m³, so this is one machine with genuine headroom, not two machines and a compromise. If your lobby is double-height, measure it separately and add it back at its real height, because a 5.4 metre void over 500 square feet contributes 251 cubic metres on its own and that is the one thing that can push a clinic of this size past a single unit. And then placement, which decides more than intensity does. Wall-mount it at about 2.1 metres on the reception wall, at the point where the inter-departmental corridor opens off the lobby, so the machine sits on the path the air already takes rather than fighting it. Not above the registration desk, because the person standing there is the closest nose in the building and should be getting less than the middle of the hall, not more. Not in the corridor, because a corridor feeds rooms you have just excluded. Key-locked, because it stands in a public hall all day and nothing in a public hall should be adjustable by a passer-by. Lowest setting that registers at all, on a timer from thirty minutes before the first appointment to close, and nobody turns it up at noon: a hall that is fine at nine and tired by six has an air-change problem, and turning fragrance up makes it worse.
The one instruction I would put on the handover sheet: four rooms out, housekeeping asked, ceiling measured, and only then the machine — and if the answer comes out as two units for 5,000 square feet, somebody has counted the clinical rooms.
Your 5,000 sq ft, space by space
This is the walkthrough as a table, with a plausible area against each space so you can substitute your own figures. Print it, walk the clinic with it, and write your real numbers in the margin. The four in-scope rows at the top are the entire coverage sum; the four out-of-scope rows below them are about 2,300 square feet that never enter it.
Print this
Six departments, one hall, and the 2,300 sq ft that leaves the sum
| The space | In scope or out | Area and volume | Why |
|---|---|---|---|
| Entrance, lobby, reception and registration ★ | In scope | 940 sq ft at 2.9 m — about 253 m³ | Public, and the ten seconds in which a patient decides what kind of place this is. The machine stands here |
| The shared waiting hall, six departments, 44 seats | In scope | 1,100 sq ft at 2.9 m — about 296 m³ | One open volume serving all six departments, so one level and one scent. The shared-hall page has the occupancy argument |
| Inter-departmental corridors and the lift lobby | In scope | 540 sq ft at 2.9 m — about 146 m³ | Connected to the hall and walked by everybody, but no emitter in them — they feed rooms that are out of scope |
| Administration, back office and the refreshment corner | In scope | 120 sq ft at 2.9 m — about 32 m³ | Staff space, and the one place where an alcohol-free reed diffuser at ₹749 is the right answer instead of a machine |
| Eight consultation and examination cabins | Out of the sum entirely | 840 sq ft, doors shut | A clinician needs to be able to notice what a room and a patient smell of. Keeping fragrance out of clinical zones is mostly doors |
| Blood and sample collection, and the dressing and minor-procedures room | Out of the sum entirely | 270 sq ft, doors shut | People faint in collection rooms, and a dressing room has a waste schedule rather than a fragrance question |
| Pathology laboratory and the dispensing counter | Out of the sum entirely | 390 sq ft, doors and a hatch | A contamination conversation with your own quality lead, and a counter where somebody reads a label and counts |
| Dental surgery, paediatric examination, toilets, sluice and cleaning store | Out of the sum entirely | 800 sq ft | Children do not get to choose, and a toilet or a store that smells is a trap, an extract or a wet mop head. Spend there first |
Shop this guide
One machine for about 730 m³, and the cabin that takes reeds
Vaayu · 1000 m³ rated₹11,999Shop → The lightest of the scentsfrom ₹299Shop → Reeds · the admin cabinfrom ₹749Shop →
The SOSA principle
Five thousand square feet is a leasing number. About 2,300 of yours is clinical or service and leaves the sum on the first pass. Count the volumes a door closes, not the square feet on the lease.
2,700 sq ft ÷ 10.76 × 2.9 m = about 730 m³. One machine, one scent, one low setting, one place to stand it.
The arithmetic, the machine, and where it stands
Do the sum yourself, because the value of it is in watching the building shrink. Take the plan, strike out the eight cabins, the collection room, the dressing room, the laboratory, the dispensing counter, the dental surgery, the paediatric examination room, the toilets, the sluice and the cleaning store, then add up what is still white on the page. In the clinics I walk, that comes to between forty and sixty per cent removed, and a 5,000 sq ft facility that arrived at the conversation expecting to buy two machines leaves it buying one. Then measure the ceiling in the waiting hall with a tape rather than estimating it, because 2.7 metres and 3.3 metres are a difference of about seventy cubic metres across that hall and the estimate is always generous. If you have a double-height lobby, measure it as its own volume and add it in at its real height: five hundred square feet under a 5.4 metre void is 251 cubic metres, which is more than a third of the whole answer and an atrium reception is genuinely a different sizing problem. Everything else in the sum is unremarkable, which is the point of teaching it in public rather than doing it for you.
Two things about the result, because both of them get argued about in meetings. The first is that one machine for six departments is not a compromise, it is the correct answer, and the reason is that you have one shared waiting hall rather than six waiting areas behind doors. If orthopaedics had its own closed waiting room with a door that shuts, that room would be its own volume and would need its own answer. It does not, so it is part of one connected public space and gets one level. The second is that six departments do not get six fragrances, and I would push back on that firmly even though it would be a larger order. A patient walking from registration to dermatology would cross a boundary, and a boundary between two scents is noticeable in a way that neither scent is on its own. One scent for the public building, chosen so that nobody can name it. If you want the dividing line written down properly, the department-by-department answer and how to describe any of this without making a medical claim are the two pages I would hand to whoever writes your standard operating procedure.
And then the machine, in the detail somebody signing the purchase order will want. The Vaayu is ₹11,999 and the argument for it in a clinic is a housekeeping argument, not a clinical one: waterless cold-air nebulisation, no standing water tank, so there is nothing to empty, rinse and dry daily in a building that runs twelve hours. That is also what rules the ultrasonic Sukoon at ₹1,899, Boond at ₹899 and Megh at ₹3,499 out of public clinical property, because they are water-based and put thirty to fifty millilitres of water an hour into the air and need a named person owning the tank every day. Those three stay honest in a single administrative cabin where one person owns the routine. Coverage up to 1000 m³ against your 730; a 400ml fill lasting about seventy-five days, so four refills a year and a 300ml refill keeps reordering simple; Bluetooth app control with 1h/4h/8h/24h timers so it runs your opening hours and stops on its own; under 38 dB, which matters because reception shares a wall with two cabins; auto-stop; and a key-lock, which is the feature that makes it acceptable in a public hall at all. Four hotel-inspired scents are included, so run them in the hall a week each before you decide. The Aangan at ₹25,999 covers up to 3,000 m³ and ties into an air-handling unit; at 730 m³ it would be overselling and I would rather say so here than in a quotation. Candles are a fire-safety matter in a healthcare building and SOSA does not make a room spray.
A 5,000 sq ft clinic is not a 5,000 sq ft fragrance problem. Strike out the clinical rooms, measure the ceiling, and you are sizing for about 730 cubic metres and one machine.
— Sonal Sahani, SOSA
The SOSA edit
The walkthrough compressed into tiers for a budget meeting, with what each one costs and when it earns its place. Four of the five tiers are free, and only one row on this table contains anything SOSA sells.
The SOSA edit
Four free tiers, then one machine
| Tier | What is in it | When it earns its place | Cost |
|---|---|---|---|
| 1. The three questions ★ | Which rooms are clinical; what housekeeping already knows is wrong; what the ceiling height is in the waiting hall | Before any quotation. All three answers are free and the first one halves the job | ₹0 |
| 2. The red pen on the plan | Eight cabins, the collection room, the dressing room, the laboratory, the dispensing counter, the dental surgery, the paediatric examination room, the service rooms | This week, on a printed plan. About 2,300 sq ft leaves the sum. The fragrance-free list | ₹0 |
| 3. The free housekeeping round | A mug of water down every trap at T-60 minutes; bin collection times with lids; the soiled-linen route off the public corridor; the drain pan named in the maintenance scope | This week, and then wait a fortnight before deciding anything. The whole checklist | ₹0 |
| 4. The arithmetic | 2,700 remaining sq ft ÷ 10.76 × 2.9 m = about 730 m³, with a double-height lobby measured separately at its real height | One afternoon with a tape measure and a calculator | ₹0 |
| 5. Vaayu — one unit, one place | Waterless, no standing water tank, rated to 1000 m³, 400ml lasting about 75 days, app and timers, under 38 dB, key-lock, four scents included | Only after the four tiers above. Wall-mounted at 2.1 m on the reception wall, on low, opening hours only | ₹11,999 |
| Not on the list at any price | A second machine because the plan says 5,000 sq ft, six fragrances for six departments, or anything at all inside a clinical room | Never. The sizing arithmetic for a larger centre uses the same rule, and SOSA does not make a room spray | — |
Honest notes for buyers: the areas and ceiling height in this guide are a worked example for a typical 5,000 sq ft six-department plan, not a survey of your building; substitute your own measured figures before ordering anything. On fragrance itself, fragrance in a medical facility is housekeeping and presentation, never treatment. Nothing here claims that a fragrance reduces anxiety, aids recovery, improves sleep, cleans or disinfects air, or has any clinical effect whatsoever, because it does not and a diffuser is not an air purifier. Scenting belongs to the entrance, reception, shared waiting areas, inter-departmental corridors and administrative rooms. Consultation and examination rooms, treatment and procedure rooms, day-care surgery, dressing rooms, blood- and sample-collection rooms, laboratories, pharmacy dispensing, sterile stores, imaging rooms, oncology day-care and paediatric clinical areas should be left fragrance-free. A persistent smell is information about a dry drain trap, a bin, a soiled-linen route or an air-conditioning drain pan: find it and fix it rather than covering it. On the machines: the Vaayu at ₹11,999 is waterless cold-air nebulisation with no standing water tank, covering up to 1000m³ or roughly 2,000–3,000 sq ft, with a 400ml tank lasting about 75 days, app control, 1h/4h/8h/24h timers, under-38dB running, auto-stop and a key-lock for public areas. The Aangan at ₹25,999 covers up to 3,000m³ and connects to HVAC for a whole floor or an atrium. The ultrasonic Sukoon, Boond and Megh are water-based, hold standing water and add 30–50 ml of water an hour to the air, which suits a single administrative cabin with a named person emptying and drying the tank daily and is unsuitable for public clinical property. An alcohol-free reed diffuser needs 24–72 hours to establish and suits a small lobby rather than a large waiting hall. Candles are not appropriate in a healthcare facility because an open flame is a fire-safety matter. SOSA does not make a room spray. The Hotel Collection scents are SOSA's own interpretations inspired by the world's finest hotels; SOSA is an independent Indian fragrance house, not affiliated with or endorsed by any hotel brand. A portion of every order supports girl-child education through Nanhi Kali.
One machine for about 730 cubic metres
SOSA Vaayu ₹11,999
Everything above this on the page is a plan, a red pen and a housekeeping round, and all of it is free. This is the only item SOSA sells in the whole walkthrough, and it arrives fourth — after the clinical rooms come out, after housekeeping has had its turn, and after the ceiling has been measured. Waterless cold-air nebulisation with no standing water tank, rated to 1000 m³ against your 730, a 400ml fill lasting about seventy-five days, app control with 1h/4h/8h/24h timers, under 38 dB, auto-stop, key-lock, four hotel-inspired scents included. Wall-mounted at about 2.1 m on the reception wall, public areas only, on low, for the opening hours.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The call that made me write this walkthrough down came from a medical director in Jaipur who described his clinic to me in one long sentence — five thousand square feet, six departments, one waiting hall, forty-four seats, two peaks a day — and then asked how many machines he needed. I asked him to send me the floor plan instead, and when it arrived I struck out four rooms he had not thought to mention and then the eight consultation cabins, and the building on the page got smaller than the building in his head by about half. He had been quoted for two units by somebody else and was expecting me to say three. He bought one, put it on the reception wall where the corridor opens off the lobby, and told me six months later that the only change he would make is that he wished he had asked his housekeeping supervisor the question first, because she had known about the dry trap in the sluice for a year.
I now ask for the plan before I answer anything, and the reason is not thoroughness. It is that the three questions at the top of this page are the only part of the conversation where I can be useful, and the question about the machine is the part where I have an obvious interest. Which rooms are clinical is a decision you and your clinicians make and I simply write it down. What housekeeping already knows is wrong is information that exists in your building for free and costs me a sale roughly a third of the time. The ceiling height is a tape measure. By the time we get to the machine there is usually only one honest answer left and it is a single unit, which is both the smallest order on the page and the only one I would defend in writing.
I would rather sell one machine into a clinic that has walked its own plan than two into one that has not, because the second kind writes to me in a month asking why it is not working. Everything is made and supported from Pune, and a part of every order funds girl-child education through Nanhi Kali. You get a space that smells like somewhere looked after; a girl gets a classroom. That equation has always felt right to me.
Frequently asked questions
How many diffusers does a 5,000 sq ft multi-speciality clinic need?
Usually one, because the sum should count only the volumes a door closes. In a typical six-department plan the eight consultation and examination cabins, the sample-collection room, the dressing and minor-procedures room, the laboratory, the dispensing counter, the dental surgery, the paediatric examination room and the service rooms come to around 2,300 square feet and leave the calculation entirely. The remaining 2,700 square feet at a 2.9 metre ceiling is about 730 cubic metres, and one Vaayu is rated to 1000 cubic metres.
Which four rooms do clinics most often forget to exclude?
The blood- and sample-collection room, the dressing and minor-procedures room, the pathology laboratory and the dispensing counter behind the pharmacy window. The consultation cabins are usually excluded without argument, but those four are often left in because they are small and sit near public space. All four should be fragrance-free with their doors shut, and together they are around 660 square feet of a 5,000 square foot plan.
Should six departments have six different fragrances?
No. The departments share one open waiting hall, so a patient walking from registration to dermatology would cross a boundary between two scents, and a boundary is far more noticeable than either scent on its own. One fragrance for the whole public building, chosen so that nobody can name it, and nothing at all in the clinical rooms. The useful variable in a clinic is which rooms, not which scent.
Where exactly should the machine stand in a shared waiting hall?
Wall-mounted at about 2.1 metres on the reception wall, at the point where the inter-departmental corridor opens off the lobby, pointed along the direction the air already moves. Not above the registration desk, because whoever stands there is the closest nose in the building. Not in the corridor, because corridors feed rooms you have just excluded. Key-locked, on the lowest setting that registers, on a timer that starts thirty minutes before the first appointment and stops at close.
What should we do before buying anything at all?
Ask your housekeeping supervisor what in the building smells and where, and then fix that, because all four of the usual answers are free. A mug of water down every drain trap sixty minutes before opening, bin collection at named times with lids that close, a soiled-linen route that does not cross the public corridor, and the air-conditioning drain pan written into the maintenance scope you already pay for. Wait a fortnight after that before deciding about a machine.
Four rooms out, then the sum, then this
Count the volumes a door closes — and a 5,000 sq ft clinic turns out to be about 730 cubic metres
The Vaayu is ₹11,999: waterless cold-air nebulisation with no standing water tank, up to 1000 m³ or roughly 2,000–3,000 sq ft, a 400ml tank lasting about seventy-five days for four refills a year, Bluetooth app control with 1h/4h/8h/24h timers, under 38 dB, auto-stop and a key-lock for public areas, supplied with four hotel-inspired fragrances. The Aangan is ₹25,999 for 8,000–10,000 sq ft, and alcohol-free reeds from ₹749 suit an administrative cabin. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
See the Vaayu · ₹11,999 All commercial scenting
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More from SOSA
- How do I scent a 3,000 sq ft multi-speciality clinic? — the same walkthrough on a smaller plan, with the arithmetic done again.
- Which departments in a multi-speciality clinic should be scented and which should not? — step one of this page, at length.
- What should a multi-speciality clinic fix before it spends anything on fragrance? — step two, as a printable twenty-six-line checklist.
- How should a shared waiting area in a multi-speciality clinic be scented? — the hall that is the whole of your coverage sum.
- Brand: the SOSA founder story.
Editorial standards & sources
Product facts used in this guide. SOSA Vaayu Rs 11,999: waterless cold-air nebulising diffuser, no water reservoir, coverage up to 1000m3 (approximately 2,000-3,000 sq ft), 400ml refillable tank lasting up to about 75 days per fill, Bluetooth app plus onboard control, 1h/4h/8h/24h timer scheduling, adjustable intensity, under 38 dB, DC 12V/1A at 5W, 165 x 80.5 x 215 mm and 0.9 kg, freestanding or wall or HVAC mounted, auto-stop and key-lock, CE, RoHS and SGS certified, supplied with four hotel-inspired fragrances. SOSA Aangan Rs 25,999: HVAC-connected or standalone commercial nebulising diffuser, coverage up to 3,000m3 (roughly 8,000-10,000 sq ft), 800ml reservoir, metal body, programmable schedules, under 42 dB. Ultrasonic machines are water-based, hold standing water and consume 30-50 ml of water an hour: Sukoon Rs 1,899 (500ml, 270-320 sq ft, 16-18 hours on low, three 15ml Hotel Collection scents included), Boond Rs 899 (300ml), Megh Rs 3,499 (6 litres). Hotel Collection water-based fragrance 15ml Rs 299, 100ml Rs 999, 300ml Rs 1,799. Alcohol-free reed diffusers from Rs 749, requiring 24-72 hours to reach their working level. Free shipping above Rs 499. Coverage arithmetic: cubic metres equal floor area in square feet divided by 10.76 and multiplied by ceiling height in metres, counting only the volumes that are actually scented. This guide makes no medical, therapeutic or clinical claim of any kind for fragrance: a diffuser does not purify, disinfect or clean air, and does not treat, calm or affect any patient or condition. Fragrance is housekeeping and presentation. Clinical areas should be left fragrance-free, and a persistent odour should be traced to its source and corrected rather than covered. SOSA is not affiliated with or endorsed by any hotel brand. Prices subject to change - see the live product pages.