Founder Diaries · Clinics & Medical Centres · Is It Worth the Cost?
By Sonal Sahani · ISIPCA Versailles 13 min read Updated November 2026
I am going to answer this against the honest alternative rather than against nothing, because the alternative is not “do without” — it is four pieces of housekeeping that cost ₹0 and fix most of what patients are actually noticing. Water down every drain trap each morning, dressing and sharps bins on a named collection time with lids that close, the public floor washed in the quiet half-hour instead of at a peak, and the air-conditioning drain pan written into the maintenance scope. Those four are free, they can be started this morning, and a clinic that has not done them is not ready to spend ₹11,999 on anything. Only once they are running for a month does the question become a real one, and then the answer is yes for most facilities with a genuine public volume and no for a surprising number — because what you are buying is presentation and housekeeping at about ₹3,000 a year per unit plus fragrance oil, and nothing else whatsoever.
Quick answers — read this first
Free, and before any of this is a purchase decision: 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 bins on a named collection time with lids that actually close, never parked in a public corridor. The public-area floor washed in the quiet half-hour between your two peaks rather than in either of them. And the air-conditioning drain pan, condensate line and blower wheel named in the maintenance scope rather than left to a generic visit. Run those four for a month before you read any further.
What the money buys if you then want it: the
Vaayu at ₹11,999, one-off. Waterless cold-air nebulisation, so no standing water tank. Up to 1000 m³. A 400ml fill lasting about seventy-five days on clinic opening hours, so four to five fills a year. App plus 1h/4h/8h/24h timers. Under 38 dB. Auto-stop and a key-lock. Four hotel-inspired scents in the box, so the first month of trialling costs nothing.
The running cost, plainly: about ₹2,400 a year if you amortise the machine over five years, about ₹220 a year of electricity at 5W over twelve-hour days, under three hours of housekeeping time a year, and the fragrance oil, which is the one line you must have as a written quotation rather than from a web page. Prices change — check the live product pages.
What it does not buy: any clinical effect at all. A diffuser does not purify, disinfect or treat anything, and clinical rooms stay fragrance-free with their doors shut.
The short answer
Short answer: yes for a clinic with a genuine public volume that has already done the free housekeeping, and no for one that has not. The honest alternative to a Rs 11,999 machine is not nothing - it is four fixes that cost Rs 0: the daily drain-trap round, bins on a named collection time with lids, the public floor washed in the quiet half-hour, and the air-conditioning drain pan written into the maintenance scope. Those four resolve most of what patients notice. Scenting is worth its cost as presentation and housekeeping, at roughly Rs 3,000 a year per unit plus fragrance oil, and it is worth nothing as anything else.
The test, before the money: run the four free fixes for a full month with one named owner and a signed sheet. If a persistent smell survives that month, you have a source to find, not a fragrance to buy, and buying one removes the signal. If the month leaves you with a building that smells of nothing in particular and you still want the entrance and shared waiting areas to read as looked after, the purchase is a genuine choice. If your public volume is a small lift lobby, alcohol-free reeds from Rs 749 may finish the job instead.
The sum, costed: Vaayu Rs 11,999 one-off, which is Rs 2,400 a year on a five-year life and Rs 4,000 on three. Electricity at 5W over a twelve-hour day is about 22 units or roughly Rs 220 a year. Refilling is five visits a year at ten minutes each, so under three hours of existing housekeeping time. Fragrance oil is about two litres per unit per year at four to five 400ml fills - get that price in writing. Aangan Rs 25,999 for up to 3,000m3. Reeds from Rs 749. Free shipping above Rs 499.
Straight answer
Is professional scenting worth the cost for a multi-speciality clinic?
1. Not yet, if you have not done the four free things, and that is not a rhetorical delay. The daily drain-trap round, bins on a named collection time with lids that close, the public floor washed in the quiet half-hour rather than at a peak, and the air-conditioning drain pan and condensate line named in the maintenance scope. All four cost ₹0, all four can start tomorrow, and between them they account for most of what a patient in your waiting hall is actually noticing. A machine bought ahead of them is a background laid over a building that still has something of its own to say, which means you have bought two smells and paid ₹11,999 for the second.
2. After a month of those four, the question becomes answerable, because you can see what is left. One of three things will be true. There is still a specific smell somewhere, in which case you have a source to find and
the free list is the next page rather than the shop. Or the building is fine at nine and tired by six, which is air change and a machine will not fix it. Or there is nothing left, in which case scenting is a genuine choice about presentation rather than a rescue, and that is the only circumstance in which I think it is worth ₹11,999.
3. What the money actually buys, described accurately. One low, steady, unremarkable background level held across the entrance, reception, shared waiting areas, inter-departmental corridors, lift lobbies and administration from opening to closing, so the building smells of nothing in particular instead of smelling of its own regime. That is presentation and housekeeping, in the same category as the seating, the signage and whether the lift lobby light works. It is not a clinical effect of any kind, a diffuser is not an air purifier, and a supplier who offers your medical director a wellbeing story has handed you something to defend rather than something to use.
4. The cost, in the shape a board will ask for it. The
Vaayu is ₹11,999 one-off. On a five-year life that is ₹2,400 a year. Electricity at 5W over a twelve-hour day is about twenty-two units a year, so roughly ₹220 at ₹10 a unit. The refill is five visits a year at ten minutes each, plus a weekly wipe, so under three hours of housekeeping time annually and not a new headcount. Fragrance oil is about two litres per unit per year, and that is the one number in the sum that has to reach you as a written quotation rather than off a web page —
the full-year cost page builds the whole thing line by line so procurement can rebuild it.
5. When it is genuinely not worth it, which is more often than a brochure admits. When nobody is named to refill it. When the public volume is a 150 m³ lift lobby and an alcohol-free
reed diffuser from ₹749 will finish the job. When the facility is predominantly paediatric or oncology day-care and the correct public answer is fragrance-free anyway. When a smell has not been identified. And when the honest reading of the budget is that seating and a toilet extract fan come first, which
the spend-first question sets out as a budget rather than as a checklist.
6. And what I will not claim for it, at any price. It does not increase footfall, it does not improve retention, it does not move a satisfaction score and it does not affect revenue, and I have no study to quote you because I have none worth quoting. What is true and sufficient is narrower: a facility that smells looked after reads as one. If that is worth ₹11,999 and a few thousand rupees a year to your board, buy it. If it is not, do the four free things and keep your money.
A portion of every order supports girl-child education through Nanhi Kali.
TL;DR: four free fixes first — traps, bins, the wash hour, the drain pan — and a month of them before anybody signs anything. After that, the
Vaayu at ₹11,999 is worth it as presentation and housekeeping at about ₹3,000 a year plus oil, and worth nothing as anything else. No clinical claim, no footfall claim, no study. Clinical rooms stay fragrance-free.
The free four, then the costed one
SOSA commercial scenting from ₹899
The order here is by cost, not by how interesting each line is.
Drain traps, bin times, the wash hour and the drain pan are ₹0 and come first. An alcohol-free reed diffuser from ₹749 finishes a small lobby. The Vaayu at ₹11,999 is the machine for a real public volume, and the Aangan at ₹25,999 only earns its place above 1000 m³ of public volume. One of those lines costs nothing and does the most work. Free shipping above ₹499.
The four free fixes that come first, and the month that follows them
I want to put these four in front of the price because they are the honest alternative to the price, and a page that costs you money before it has told you what is free is not advising you. None of the four needs a quotation, a comparison, a purchase order or a conversation with finance. All four need one named person and a sheet to sign, which is the only part anybody ever skips. They are in cost order and they are also, in my experience of walking through medical centres, in rough order of how much they change what a patient notices. Run them for a full month before you read the costed half of this page, and give the month a shape: week one the trap round and the bin times, week two the wash hour and the cleaner specification with your infection-control lead, week three the drain pan written into the maintenance scope and the filters moved to a fortnightly cycle, week four walk the building yourself at three fixed hours and write one line each time. What is left at the end of that month is a much smaller and much better-defined question than the one you started with, and in a reasonable number of clinics the answer to it turns out to be that no machine is wanted. The full twenty-six-line list is the long version of the same argument.
1
FREE, TODAY
The drain-trap round and the bin schedule, which are most of it
These two are first because they are free, daily, and between them the commonest reason an Indian clinic smells. A mug of water down every floor gully, every basin not in daily use, every sluice, every unused shower and every toilet in every department, sixty minutes before opening, every day, by a named person with a sheet to sign. A U-bend water seal evaporates in two to four weeks of disuse and the drain then vents into the room, and every clinic has gullies and basins that nobody uses — the spare consulting cabin, the second staff toilet, the sluice on the floor that has not opened yet. It costs nothing to prevent and it is the single highest-value free line in this cluster. Then the bins: dressing waste and sharps on a named collection time with lids that actually close, and never stored or staged in a public corridor. A corridor smell is very often a bin schedule rather than a corridor, which is a change to a timetable rather than a purchase. If either of these two is not on a signed daily sheet with one name against it, you do not have a fragrance question yet. You have a housekeeping question, and the answer to it is ₹0.
2
FREE, THIS WEEK
The mopping hour and the air-conditioning drain pan
The second pair cost nothing either, but they need a conversation rather than a bucket. Move the public-area floor wash to the quiet half-hour between your two peaks instead of running it at nine or at five, and specify a neutral cleaner for the lobby, waiting hall and inter-departmental corridors while the strong concentrate stays for clinical floors. That is a specification change agreed with your infection-control lead, not a purchase, and it is the fix for the clinic that smells of disinfectant all day — which is a complaint I hear more often than any other and which no fragrance should ever be used to cover. Then the air-conditioning drain pan, condensate line and trap, and the blower wheel, written by name into the maintenance scope rather than left inside a generic quarterly visit. Biofilm in a drain pan is why a building smells musty for the first ten minutes every morning, your own AMC vendor can confirm it in a single visit, and widening the scope is usually a renegotiation of money you already spend rather than new money. While you are at it, set every indoor unit to run fan-only for the last ten minutes of the day so the coil dries before the building is locked, and confirm the fresh-air damper has not been shut by somebody chasing a cooling bill.
3
ONLY THEN
What ₹11,999 is for, and the three cases where it is still wrong
If the month has left you with a building that smells of nothing in particular, the machine becomes a real choice and I want to describe it accurately.
The Vaayu at ₹11,999 holds one low, steady background across the public areas through the opening hours. Waterless cold-air nebulisation, so there is no standing water tank to empty, rinse and dry daily in a building that runs twelve hours a day. Up to 1000 m³. A 400ml fill lasting about seventy-five days, so four to five fills a year. App plus 1h/4h/8h/24h timers, so the facility team sets the schedule and the centre head never touches it. Under 38 dB. Auto-stop. A key-lock, which is the only reason a machine can stand in a public waiting hall at all. Four hotel-inspired scents in the box, so the first month of trialling costs nothing. Three cases where it is still the wrong purchase. First, where nobody is named to refill it, in which case you will own a machine that is empty by March. Second, where the public volume is genuinely small — a lift lobby and a four-seat reception at 150 to 200 m³ — where an alcohol-free
reed diffuser from ₹749 is the honest answer and the machine is overkill. Third, where a water tank has been proposed: the ultrasonic
Sukoon at ₹1,899,
Boond at ₹899 and
Megh at ₹3,499 hold standing water and add 30 to 50 ml of water an hour to the air, which is honest for one administrative cabin with a named person drying the tank daily and wrong for public clinical property.
The twelve-hour-day question goes through that distinction properly.
The instruction I would give whoever takes this to a budget meeting: present the four free fixes and the machine on the same page, with the free ones first and the ₹0 in the cost column. If the committee approves the machine without noticing that four lines above it cost nothing, the page has been presented badly.
What ₹11,999 buys, and what it does not
The whole decision as one table, in cost order, with the free rows at the top where they belong. Read down rather than across: the question is not which product to buy, it is how far down the table your facility has actually earned the right to go.
Print this
The honest alternative, and then the costed one
| The spend |
What it buys you |
When it earns its place |
Cost |
| The four free fixes ★ |
The drain-trap round daily, bins on a named collection time with lids, the public floor washed in the quiet half-hour, the AC drain pan and condensate line named in the maintenance scope |
Tomorrow morning. No quotation, no purchase order, and most of what patients notice |
₹0 |
| A name and a sheet against each of them |
The only mechanism that makes a free fix survive a change of housekeeping supervisor |
The same morning. A task with two owners has none |
₹0 |
| The zone list, written down |
Which areas are scented and which stay fragrance-free, signed off before anything is sited |
Before a supplier is called. The fragrance-free list
|
₹0 |
| Alcohol-free reed diffuser
|
A small lobby, a reception nook or an administrative cabin. 24 to 72 hours to establish, barely noticed past about a metre |
Where the public volume is 150 to 200 m³ and a machine would be overkill |
From ₹749 |
| An ultrasonic in one admin cabin |
Sukoon 500ml or Boond 300ml. Water-based, 30 to 50 ml of water an hour, a tank to empty and dry daily |
One back-office room with one named person. Never public clinical property |
₹899–₹1,899 |
|
Vaayu — the main case |
Waterless, no standing water tank, up to 1000 m³, 400ml lasting about 75 days, app and 1h/4h/8h/24h timers, under 38 dB, auto-stop, key-lock, four scents included |
After the free month, where there is a real public volume and a named owner. Costed for a full year
|
₹11,999 |
|
Aangan — the large case |
HVAC-connected or standalone, up to 3,000 m³, 800ml reservoir, metal body, programmable, under 42 dB |
Above 1000 m³ of public volume, or a public-only AHU. Which of the two
|
₹25,999 |
| Never |
A machine bought to cover a smell nobody has identified, a stronger bottle because somebody complained, a candle in a healthcare building, or a claim that any of this affects a patient |
Never. A persistent smell is information, an open flame is a fire-safety matter, and SOSA does not make a room spray |
— |
Shop this guide
The costed line, the small-volume answer, and the refill
The SOSA principle
The alternative to ₹11,999 is not nothing. It is four fixes that cost ₹0 and do most of the work. A clinic that has not done those four is not deciding whether scenting is worth the cost — it is deciding whether to pay to cover its own housekeeping.
A mug of water in a dry trap. A lid on a bin. A wash hour moved by ninety minutes. A drain pan named in a contract you already pay for. None of it is interesting and all of it works.
The honest alternative, costed against the machine
Put the two options side by side with real numbers and the comparison stops being a matter of taste. Option one costs ₹0 and buys you the four fixes, a signed sheet, a cleaner specification agreed with infection control and a maintenance scope that names the drain pan. Option two costs ₹11,999 once, plus about ₹2,400 a year if your finance lead amortises the machine over five years and about ₹4,000 a year if the policy is three, plus roughly ₹220 a year of electricity, plus under three hours of existing housekeeping time, plus fragrance oil of about two litres per unit per year. Option two does not replace option one. It sits on top of it, and it only produces the result it is sold on if option one has already been done — which is the whole reason this page puts the free work first and prices nothing until the second half. If your board asks which of the two it should fund, the answer is both, in that order, and the first one does not need funding at all.
Two things about the running cost that are worth saying plainly, because they are where the brochures are vaguest. The first is that the fragrance oil is the only genuinely variable input and it is the one I will not put a number on without a quotation. The volume is firm and checkable: a 400ml fill lasts about seventy-five days on clinic opening hours, which is four to five fills a year, which is about two litres per unit per year. Multiply that by whatever price you are quoted in writing, with a validity date on it, and the spreadsheet is finished. The machine ships with four hotel-inspired scents, so your first weeks cost nothing and you can settle the choice of scent before you commit to a repeat order. The published Hotel Collection bottles at ₹299 for 15ml, ₹999 for 100ml and a ₹1,799 300ml refill are the water-based range for the ultrasonic machines rather than the Vaayu's own undiluted oil, so do not build a Vaayu budget from those numbers — ask for the Vaayu's oil priced per 400ml fill and per litre, and treat anything you find on a web page as an estimate until it arrives on a letterhead. The second is that labour is not a new cost and should not be presented as one. Five refill visits a year at ten minutes each, plus a two-minute wipe-down weekly, is under three hours a year. That belongs on an existing housekeeping sheet with one name against it, which the question of who refills it works through, and if that name does not exist the correct decision is not to buy.
And then the number a board will actually ask for, with the caveat that matters more than the number. Take a 3,000 sq ft multi-speciality clinic with one Vaayu. Machine amortised over five years at ₹2,400, electricity at about ₹220, labour inside existing hours, and fragrance oil at whatever your written quotation says — call the all-in figure somewhere around ₹13,000 to ₹18,000 a year depending entirely on that oil price, which is an illustration of the arithmetic and not a price. On plan area that is roughly ₹4 to ₹6 per square foot per year. On the public area you are actually scenting, which in most clinics is a good deal less than half the plan, it is nearer ₹11 to ₹15 per square foot — and procurement should state which denominator it used, because the two figures differ by a factor of three and both get quoted as though they were the same thing. At a hundred patient visits a day over three hundred days, the same total is about fifty paise a visit. Now the caveat: that unit cost tells you what presentation costs you and nothing else. It does not tell you that anybody came back, stayed longer, scored you higher or spent more, and I have no figure to offer you on any of those because I have none I would stand behind. A facility that smells looked after reads as one. That is the whole of the claim, and where the cost belongs in the budget is the argument about which line it sits in — facilities, alongside housekeeping, rather than marketing.
The alternative to spending ₹11,999 is not spending nothing. It is four things that cost ₹0 and do most of the work. If a clinic has not done those four, the honest answer to this question is not yet, and I would rather write that than take the order.
— Sonal Sahani, SOSA
The SOSA edit
The same decision as five tiers in the order a budget meeting works through them, with the cost column filled in and the one thing nobody should fund at the bottom. Note that two of the five tiers cost nothing.
The SOSA edit
Free first, costed second, and the test in between
| Tier |
What is in it |
When it earns its place |
Cost |
| 1. The four free fixes ★ |
The daily drain-trap round, bins on a named collection time with lids, the public floor washed in the quiet half-hour, the AC drain pan and condensate line in the maintenance scope |
Tomorrow. No quotation and no purchase order, and a clinic that skips them is paying to cover its own housekeeping |
₹0 |
| 2. The month, and the sheet |
One named owner per fix, a signed daily sheet, a neutral cleaner agreed with infection control, and your own walk of the building at three fixed hours a day |
Weeks one to four. It is the test that decides whether there is anything left to buy |
₹0 |
| 3. The small-volume answer |
An alcohol-free reed diffuser from ₹749 in a lift lobby or reception nook, or an ultrasonic in one administrative cabin with a named person drying the tank |
Where the public volume is 150 to 200 m³ and a machine would be overselling |
₹749–₹1,899 |
| 4. Vaayu — the costed line |
Waterless, no standing water tank, up to 1000 m³, 400ml lasting about 75 days, app and 1h/4h/8h/24h timers, under 38 dB, auto-stop, key-lock, four scents included |
After tier two, with a real public volume and a named owner. About ₹3,000 a year plus oil |
₹11,999 |
| 5. Aangan — the large case |
HVAC-connected or standalone, up to 3,000 m³, 800ml, metal body, programmable, under 42 dB |
Above 1000 m³ of public volume. The 10,000 sq ft sum
|
₹25,999 |
| Not worth funding at any price |
A machine for an unidentified smell, a stronger bottle because somebody complained, scenting in a clinical room, or a business case built on footfall, retention or satisfaction scores |
Never. One machine is usually the answer, and no study is being quoted here because there is none worth quoting
|
— |
Honest notes for buyers: on this page specifically, nothing here claims that scenting increases footfall, improves retention, moves a patient-satisfaction score or affects revenue, and no percentage or study is offered because none is being relied on. The claim is narrower and it is the whole claim: a facility that smells looked after reads as one. The four free fixes come before the purchase, and a clinic that has not done them is not ready to spend. In general, 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.
The costed line, once the free four are done
SOSA Vaayu ₹11,999
Waterless cold-air nebulisation with no standing water tank, up to 1000 m³ or roughly 2,000 to 3,000 sq ft, a 400ml fill lasting about seventy-five days so four to five fills a year, Bluetooth app plus 1h/4h/8h/24h timers, under 38 dB, auto-stop and a key-lock, 0.9 kg at 165 × 80.5 × 215 mm, freestanding or wall or HVAC mounted, four hotel-inspired scents in the box. One-off ₹11,999, about ₹2,400 a year amortised over five, roughly ₹220 of electricity, under three hours of housekeeping time, plus fragrance oil you should have in writing. Public areas only, on low, for the opening hours. No clinical claim of any kind.
A note from Sonal
The question in this title is usually asked by somebody who has already decided and wants help defending it to a board, and I have learned to answer it in the other direction. A centre head in Nashik called me about two machines for a new wing, and because he mentioned in passing that the corridor outside his dressing room had a smell, I asked what the bin collection time was. There was not one. Waste went out when the trolley came past, which on a Friday could be four in the afternoon. We agreed he would fix the collection time, do the trap round and move the mopping hour, and talk to me again in a month. He called back five weeks later to say the corridor was fine and he would like one machine for the entrance rather than two for the wing. That conversation cost me a machine and it is the kind of conversation I would rather have.
What I have taken from several years of these calls is that the honest comparison is almost never machine against nothing. It is machine against four free fixes that nobody has done yet, and once those are done the machine is a smaller, calmer and much easier decision — a line in the facilities budget at about ₹3,000 a year plus oil, sitting next to the seating and the signage rather than next to anything clinical. I also think the cost-per-visit arithmetic is worth doing and worth being careful with. Fifty paise a visit is a real number and it tells a board exactly one thing: what presentation costs. It tells them nothing about whether a patient noticed, came back or thought better of you, and when a supplier starts attaching those outcomes to a fifty-paise figure, the right response is to ask for the study and then to notice that there is not one.
I would rather sell one machine into a clinic that has already done its housekeeping than three into one that has not, and the reason is not modesty about the product. It is that the second kind of sale comes back. A background laid over a dry drain trap produces a complaint in the sixth week, the setting gets turned up, the complaint gets worse, and the machine ends up blamed for a problem it was never able to solve. 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
Is professional scenting worth the cost for a multi-speciality clinic?
Yes, for a clinic with a genuine public volume that has already done the free housekeeping, and not yet for one that has not. The honest alternative is four fixes that cost nothing: the daily drain-trap round, bins on a named collection time with lids, the public floor washed in the quiet half-hour, and the air-conditioning drain pan named in the maintenance scope. Run those for a month first. After that, the Vaayu at Rs 11,999 is worth its cost as presentation and housekeeping, at roughly Rs 3,000 a year per unit plus fragrance oil, and worth nothing as anything else.
What does it actually cost to run per year?
On a five-year life the Rs 11,999 machine is Rs 2,400 a year. Electricity at 5W over a twelve-hour day is about 22 units, which is roughly Rs 220 at Rs 10 a unit. Refilling is five visits a year at ten minutes each plus a weekly wipe, so under three hours of existing housekeeping time rather than a new headcount. Fragrance oil is about two litres per unit per year at four to five 400ml fills, and that is the one input you should hold as a written quotation with a validity date rather than take from a web page. Prices change - check the live product pages.
Does scenting increase footfall or patient satisfaction?
I have no figure to offer on either and I am not going to invent one. Nothing on this page claims that fragrance increases footfall, improves retention, moves a satisfaction score or affects revenue, and no percentage or study is being relied on. What is claimable is narrower and sufficient: a facility that smells looked after reads as one. If a supplier attaches a number to any of the other outcomes, ask which study it came from.
When is it clearly not worth buying?
When nobody is named to refill it, because the machine will be empty by March. When a persistent smell has not been traced, because covering it removes the information that told housekeeping something was wrong. When the public volume is a small lift lobby of 150 to 200 cubic metres, where alcohol-free reeds from Rs 749 finish the job. When the facility is predominantly paediatric or oncology day-care and the correct public answer is fragrance-free. And when seating or a toilet extract fan is the honest first call on the budget.
Should the cost sit in facilities or in marketing?
Facilities, alongside housekeeping, cleaning consumables and the maintenance contract, because that is what it is. Putting it in a marketing or patient-experience line invites the business case to be written on outcomes nobody can evidence, and then somebody has to defend those outcomes later. A facilities line needs only the arithmetic: machine amortised, electricity, a named owner inside existing hours, and fragrance oil at a quoted price.
Free first, then the costed line
Do the four free fixes and give them a month — then this is a calm decision rather than a rescue
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 to five fills a year, Bluetooth app control with 1h/4h/8h/24h timers, under 38 dB, auto-stop and a key-lock, 0.9 kg at 165 × 80.5 × 215 mm, supplied with four hotel-inspired fragrances. The Aangan is ₹25,999 for up to 3,000 m³, and alcohol-free reeds from ₹749 suit a small lobby. Free shipping above ₹499, prices subject to change, 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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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.
Reeds · a small lobbyfrom ₹749Shop → 
Refills · four a year₹1,799Shop →