Founder Diaries · Clinics & Medical Centres · What a Facility Should Smell Like
By Sonal Sahani · ISIPCA Versailles 11 min read Updated September 2026
Yes, narrowly, and the qualifications are the useful half of the answer. Most of what is sold as room fragrance is not appropriate in a healthcare building, and a fair number of healthcare buildings are not appropriate places for any fragrance at all. I sell diffusers for a living and I have told clinics not to buy one often enough to know that the honest version of this answer has four conditions attached to it. If all four are true, the answer is yes and it is a small, plain, defensible yes about housekeeping and presentation. If any one of them is false, the answer is no, and no is a perfectly respectable outcome that costs ₹0.
Quick answers — read this first
The four conditions: the building has no smell of its own with a source; the zones being scented are genuinely public rather than clinical; the dose is low enough that nobody can name it; and one named person owns the setting, the refill and the off switch.
If all four hold: a dry, clean, unmemorable composition in the entrance, reception, waiting areas and corridors only — the
Westin-inspired White Tea Serenity is the default. The
Vaayu at ₹11,999 runs the opening hours and stops.
If any fail: do not scent. A single-corridor clinic where the waiting bench faces a dressing-room door, a centre with an unfound smell, or a facility with nobody named to own it should spend the money on ventilation and housekeeping instead.
The short answer
Short answer: yes, but only in the public areas of a facility that is already clean, at a level nobody can identify, with one named owner. The honest test is that the fragrance has to be defensible to a medical director in one sentence — it is housekeeping and presentation — and nothing beyond that may ever be claimed for it.
The pick: the
Westin-inspired White Tea Serenity (white tea, aloe, cedar) as the default;
Ritz-Carlton-inspired Quiet Luxury (white tea, bergamot, cedar) where a lobby is large or double-height;
1 Hotels-inspired Forest Suite (cedarwood, vetiver, green leaves) where a café or canteen smell reaches the waiting area. Nothing floral, nothing sweet, nothing anybody could name as a perfume.
Shop: the
Vaayu at ₹11,999, waterless with no standing tank, up to 1000m³, 400ml for about 75 days, under 38 dB, timers, app and key-lock. The
Aangan at ₹25,999 for up to 3,000m³. Alcohol-free
reed diffusers from ₹749 for an administration cabin or a small consulting-suite lobby. Ultrasonics from ₹899 where a named person will empty and dry a tank daily. Free shipping above ₹499.
Straight answer
Is there a fragrance that is genuinely appropriate in a healthcare environment?
1. Yes — but the category is narrow and the conditions are real. Clean, dry, quiet, unmemorable as a product, impossible for anybody in a forty-seat hall to take against. Nothing floral, nothing sweet, nothing gourmand, nothing a patient could name as a perfume.
2. Condition one: the building has no smell of its own that has a source. If the corridor outside the dressing room smells, or the toilets announce themselves, or the air conditioning is musty for the first ten minutes each morning, the answer today is no. Those are information about a bin schedule, a dry drain trap or a drain pan. Find it and fix it first.
3. Condition two: the zones are genuinely public. Entrance, reception, waiting areas, inter-departmental corridors, lift lobbies, administration, the café corner. If your building's circulation is really a clinical corridor with chairs against one wall, there is no public zone to scent and the answer is no.
4. Condition three: the dose is low enough that nobody can name it. A patient who asks the receptionist what the fragrance is has told you it is set too high. The target is an absence of anything unpleasant, not a presence of something pleasant.
5. Condition four: somebody is named. One person owns the setting, the refill and the off switch, and can switch it off in thirty seconds when a patient asks. Without that person you are buying an object that will drift upward for two years.
6. If all four hold, buy once and run it low. The
Vaayu at ₹11,999 in the public zones only, lowest useful setting, on a timer that matches the opening hours. Nothing is claimed for it beyond housekeeping and presentation.
A portion of every order supports girl-child education through Nanhi Kali.
TL;DR: yes, narrowly — a dry, clean, unnameable composition in genuinely public zones of a facility that is already clean, at a level nobody can identify, owned by one named person. If any of those four is untrue, the honest answer is not to scent, and that decision costs ₹0.
Alcohol-free, and the narrow place it belongs
SOSA alcohol-free reed diffusers from ₹749
A separate line with its own compositions, and alcohol-free, which in this building is a genuine point rather than a marketing one.
Where reeds are honest: an administration cabin, a small consulting-suite lobby, a records room, a corridor nobody is queuing in. Where they are not: a forty-seat waiting hall, where output falls away past roughly a metre and nobody past the second row of chairs will ever notice them; and anywhere a child can reach, because a glass bottle of oil at reach height in a paediatric waiting area is a spill and an ingestion risk. They also take 24 to 72 hours to reach their working level, so they are not a solution to anything happening on Monday.
Morning Freshness from ₹749,
Mountain Breeze from ₹849,
Evening Calm from ₹799, with 300ml
reed refills.
Four conditions, and the clinics that fail them
The reason this question gets a woolly answer everywhere else is that it is usually asked as a question about fragrance and it is really a question about buildings. The same composition, at the same setting, is entirely appropriate in one clinic and quite wrong in the one next door, and the difference has nothing to do with the bottle. It has to do with whether the building is already clean, whether it has genuinely public volumes, whether the dose can be kept low, and whether anybody owns it. So here are the four conditions written out properly, followed by the five kinds of facility that fail them, because a page that only tells you when to buy is not worth reading in a healthcare setting.
1
THE FOUR CONDITIONS
All four, or the answer is no
One: the building has no smell of its own that has a source. This is the condition most often skipped and it is not negotiable. A persistent smell in a medical facility is information — a drain trap that has dried out in a barely used toilet, a dressing-waste bin emptied at noon instead of at night, a soiled-linen trolley that takes a route through a public corridor, biofilm in an air-conditioning drain pan, a toilet extract fan that has quietly stopped, damp behind a wall in August. Put fragrance over any of those and you have deleted the signal that told housekeeping something was wrong, which is a worse outcome than the smell.
What to fix before spending anything and
whether to cover cleaning-chemical odours both sit on this point.
Two: the zones are genuinely public. Entrance, reception and registration, shared and departmental waiting, inter-departmental corridors, lift and stair lobbies, administration, the café corner, staff rooms if the staff ask for it. Clinical rooms are fragrance-free by default and that is not a concession —
the fragrance-free list is long and it should be.
Three: the dose is low enough that nobody can name it. The result being bought is an absence, not a presence.
Four: one named person owns the setting, the refill and the off switch. Not a department, a person, with their name written into the housekeeping SOP. That person is also who switches it off inside thirty seconds when a patient at the desk asks them to, and if you cannot name them today you are not ready to buy.
2
THE CASE FOR NOT SCENTING
Five kinds of facility where the honest answer is no
Now the half of this page that matters most.
First: the single-corridor clinic. Fourteen hundred square feet, one passage, chairs along one wall, and the dressing-room and sample-collection doors opening straight onto it. There is no public volume here that a door separates from a clinical one, so anything you put into the corridor is going into the clinical rooms every time a door opens. The answer is ventilation, not fragrance.
Second: a centre with oncology or chemotherapy day-care sharing air with the waiting area. Aversion to smells during treatment is real and every oncology nurse knows it. If there is no sealed separation, do not scent, and if there is, the day-care side stays fragrance-free regardless.
Third: a facility whose smell has not been traced. Not fixed — traced. Until you know what it is, everything you add is a cover-up, and
a clinic that smells of disinfectant all day usually has a mopping schedule to change rather than a bottle to buy.
Fourth: a centre with no named owner for it. An unowned machine drifts upward, because every person who touches it has stopped being able to smell the room.
Fifth: a clinic whose patient mix carries a standing objection — a respiratory or allergy practice where a large part of the list has been advised to avoid strong airborne anything, or a centre with several regular patients who have already said they react badly to smells.
How to handle patients who are sensitive to fragrance and
asthma, allergies and where to scent deal with the zoning answer; but where a whole practice is built around that list, the clean answer is to leave the air alone.
3
WHAT APPROPRIATE ACTUALLY MEANS
Dry, low, and impossible to name
If the four conditions hold, the brief for the material itself is the narrowest in commercial scenting.
Clean, dry, quiet, unmemorable as a product, and impossible for anybody in a forty-seat waiting hall to object to. That rules out more than it sounds like. Anything heavily floral is out, because floral is nameable and memory-loaded and in this country jasmine and tuberose carry associations no waiting room should be supplying. Anything sweet or gourmand is out, because a proportion of the people in the room have been fasting since eight the night before for a blood test and somebody is nauseated most days. Anything herbal in the camphor, eucalyptus or medicated register is out, because it reads as a product being used on a patient rather than as housekeeping. Anything a patient could name as a perfume is out by definition.
The fragrance-family page works through all four families properly.
What survives is dry, clean and woody, and in practice that is three compositions. The
Westin-inspired White Tea Serenity — white tea, aloe and cedar, the lightest of the seven and the default here. The
Ritz-Carlton-inspired Quiet Luxury — white tea, bergamot and cedar, slightly more present, for a large or double-height lobby. The
1 Hotels-inspired Forest Suite — cedarwood, vetiver and green leaves, dry enough to sit beside a café corner without arguing with it. Four hotel-inspired scents ship with the
Vaayu, so the decision can be made by nose in your own lobby over four weeks instead of from a description.
The test that settles whether a fragrance is appropriate in a clinic: ask the receptionist whether any patient has commented on it this month. If somebody has asked what it is, it is too strong. If nobody has mentioned it and the hall does not smell of anything unpleasant, it is doing its job and you should leave it exactly where it is.
Six real facilities, and what the answer was
Six situations of the kind that arrive in my inbox, with the answer each one actually got. Three of the six were told to buy nothing, which is roughly the real-world ratio and the reason I trust the other three. The prices in the last column are what the recommendation cost, and ₹0 is a legitimate entry in that column.
Scent, or do not
Six healthcare facilities and the honest answer in each
| The facility |
The question asked |
The answer |
Why |
Cost |
| 3,200 sq ft polyclinic, six cabins, one 30-seat hall ★ |
Which scent for reception |
Yes — one machine, lowest setting, public zones only |
All four conditions held. Clinical rooms came out of the sum, so one Vaayu covered it rather than two |
₹11,999 |
| 1,400 sq ft clinic, single corridor, chairs along one wall |
Whether reeds or a machine |
No |
The corridor is the clinical circulation. There is no public volume a door separates from a clinical one, and the real problem was air change |
₹0 |
| Integrated centre with oncology day-care off the main waiting area |
A scent for the whole floor |
Partly — lobby only, day-care side sealed and untouched |
Aversion to smells during treatment is real. Where separation was not sealed, nothing was added at all |
₹11,999 |
| Medical centre with a corridor smell nobody had traced |
Something strong enough to deal with it |
No, and not yet |
A persistent smell is information. It turned out to be a dressing-bin schedule and it cost nothing to correct |
₹0 |
| 8,500 sq ft integrated centre, double-height atrium reception |
One machine or several |
Yes — Aangan on the atrium, tied to the AHU |
The volume under a six-metre ceiling is double what the footprint suggests, and an atrium is the one case that genuinely justifies the larger machine |
₹25,999 |
| Respiratory practice, most of the list advised to avoid strong smells |
How to scent the waiting room safely |
No |
Where a whole practice is built around that list, leaving the air alone is the clean answer. The money went to the extract system |
₹0 |
Shop this guide
If the answer is yes, in three products
The SOSA principle
A fragrance is appropriate in a healthcare building when nothing is being claimed for it and nobody can name it. Every other version of the question is really a question about the building.
Four conditions: no smell with a source, genuinely public zones, a dose nobody can identify, and one named person who owns the setting and the off switch. Three of those are free.
If the answer is yes: how low, how long, and who owns it
Start at the bottom of the dial and stay there. Set the Vaayu to its lowest useful intensity, leave it for a full week without touching it, and judge it on the seventh day rather than on the first evening. A fragrance in a public hall is judged by people arriving from outside, and on day one you are judging it with a nose that has just been introduced to it; by day seven your own nose has stopped reporting it entirely, which is why the judgement has to be handed to somebody else. The machine runs the opening hours and stops: the 1h, 4h, 8h and 24h timers exist so that a clinic running eight to eight sets it once and forgets it, and so that it is not running overnight into an empty building. Under 38 dB matters more here than it sounds — a reception desk usually shares a wall with at least one consultation cabin, and a machine that is audible through it becomes a complaint rather than a fixture. And the key-lock is the reason a machine can stand in a public waiting hall at all: nobody passing adjusts it, and the setting you agreed in month one is still the setting in month fourteen. On coverage: cubic metres are square feet divided by 10.76 times ceiling height in metres, and the fragrance-free rooms come out of the sum entirely because their doors are shut. That subtraction is usually forty to sixty per cent of a clinic's plan area, and it is why most facilities that expected to buy two machines buy one.
Then the two products that are right in a narrower way than most clinics assume. Alcohol-free reed diffusers from ₹749 are genuinely appropriate in a healthcare building — no alcohol, no heat, no electricity, nothing to switch off — and they are wrong for a waiting hall. Output falls away past roughly a metre, so a reed at a reception desk is pleasant for the person standing at the desk and invisible to everybody sitting down; they take 24 to 72 hours to establish, so they solve nothing urgent; and a glass bottle of oil at reach height where children are waiting is a spill and ingestion risk that no amount of composition quality answers. Put them in an administration cabin, a records room, a consultant's own office or a small consulting-suite lobby, and they are exactly right. The ultrasonic machines — the Sukoon at ₹1,899, the Boond at ₹899 and the Megh at ₹3,499 — hold standing water and put 30 to 50 millilitres of it an hour into the air. In a single administration cabin with one named person emptying, rinsing and drying the tank every day, they are honest and cheap. In public clinical property, a standing tank in a twelve-hour building is a daily task looking for an owner, and if that owner does not exist the correct purchase is a waterless machine or nothing. Candles are not appropriate here at all: SOSA makes candles from ₹379 and an open flame in a healthcare facility is a fire-safety and insurance matter, which I will not soften. And SOSA does not make a room spray — the sprays in the range are car perfumes.
Then the governance, which is the part that decides whether this is still appropriate in two years. Write four lines into the housekeeping SOP: which zones are scented, which setting, who checks it and when, and the sentence the front desk says if a patient asks. One page, reviewed once a year. Then hold the line on the two failure modes. The first is upward drift: nobody who works in the building can smell the lobby after a fortnight, so the setting must be protected by the key-lock and by the written record rather than by anybody's nose. The second is the midday instinct — nobody turns it up because the hall filled at one o'clock, because a full room is an occupancy and air-change problem and a second smell makes it worse. And keep the claim small enough to be true. This is housekeeping and presentation: a room that smells of nothing in particular rather than of a cleaning cupboard, in a facility that is looked after. It does not affect any patient, any condition or any recovery; it does not clean air and a diffuser is not an air purifier. The page on using fragrance without making medical claims gives you the sentences to use with patients, staff and your own signage, and the pillar page for this group sets out the whole position. If you cannot describe what you have bought in one sentence that a medical director would sign, do not buy it.
I would rather lose a sale than put a machine into a building that needs a drain trap. A clinic that is told where not to scent can trust what it is told about where to scent.
— Sonal Sahani, SOSA
The SOSA edit
In order, for a centre working out whether the answer is yes at all. The first row is the one most buying guides leave out, and it is free. The last row is what we do not make, printed rather than discovered later.
The SOSA edit
Appropriate, conditionally — in buying order
| Buy |
What it is |
When it earns its place |
Price |
| 1. Nothing at all ★ |
A decision not to scent, written down with the reason |
Whenever any of the four conditions fails. A single-corridor clinic, an untraced smell, an unnamed owner, or a patient list built around smell sensitivity |
₹0 |
| 2. SOSA Vaayu
|
Waterless with no standing tank, up to 1000m³, 400ml for about 75 days, under 38 dB, timers, app, key-lock, four scents included |
When all four conditions hold. Entrance, reception, waiting and corridors only, at the lowest useful setting |
₹11,999 |
| 3. The three safe compositions
|
Westin-inspired white tea and cedar; Ritz-Carlton-inspired white tea, bergamot and cedar; 1 Hotels-inspired cedarwood and vetiver |
Choose by nose in your own lobby over four weeks. Nothing floral, nothing sweet, nothing nameable |
from ₹299 |
| 4. SOSA Aangan
|
Up to 3,000m³ or roughly 8,000–10,000 sq ft, 800ml, HVAC-connected or standalone, under 42 dB |
Only for a genuinely large integrated centre, a double-height atrium or an AHU tie-in. It is the wrong machine for a 2,500 sq ft polyclinic |
₹25,999 |
| 5. Alcohol-free reeds
|
No alcohol, no heat, no power. 24–72 hours to establish and barely noticed past about a metre |
An administration cabin, a records room or a small consulting-suite lobby. Never a waiting hall and never within a child's reach |
from ₹749 |
| Not appropriate here: candles, plug-ins, a morning spray |
An open flame is a fire-safety matter in a healthcare building. SOSA does not make a room spray; the sprays in the range are car perfumes |
Never in this building. A spray is a twenty-minute product in a twelve-hour day and it has gone before the queue arrives |
— |
Honest notes for buyers: fragrance in a medical facility is housekeeping and presentation, never treatment. Nothing on this page 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, Bluetooth 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 makes them suitable for a single administrative cabin with a named person emptying and drying the tank daily, and 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.
If the four conditions hold, this is the machine
SOSA Vaayu · waterless cold-air diffuser ₹11,999
Waterless cold-air nebulisation, which in a twelve-hour building is a housekeeping argument and not a clinical one: there is no water reservoir standing in a public area, so there is no tank for somebody to empty, rinse and dry every day. If that named person does not exist, do not buy a water tank at all. Up to 1000m³, about 2,000–3,000 sq ft. A 400ml fill runs roughly 75 days on clinic hours, four refills a year per unit. Under 38 dB, which matters when reception shares a wall with a consultation cabin. 1h/4h/8h/24h timers and app control. Key-lock and auto-stop, so a machine in a public hall is not adjusted by anybody passing.
A note from Sonal
The most useful conversation I have with clinic owners usually ends with them not buying anything, and I have stopped apologising for that. A fragrance is appropriate in a healthcare building in roughly the way a clean floor is appropriate: it is part of looking after the place, it is noticed only when it is wrong, and it has no business pretending to be anything more. The moment a vendor starts telling you what a scent will do to your patients, you are being sold a risk that will sit under your clinic's name and not theirs.
So my honest answer to the title is a narrow yes with four conditions, and the fourth one is the condition people find hardest, because it is not about money. Somebody has to own it — the setting, the refill, the off switch and the sentence at the desk. A machine nobody owns will be turned up by four different well-meaning people over two years, and by the end of it a patient will ask the receptionist what the smell is, which is the failure state. Name the person before you place the order, and if you cannot, spend the ₹11,999 on the extract fan instead. I mean that.
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 any fragrance genuinely appropriate in a healthcare environment?
Yes, narrowly: a dry, clean, unmemorable composition in genuinely public zones of a facility that is already clean, at a level nobody can name, owned by one named person. Nothing may be claimed for it beyond housekeeping and presentation. If any of those four conditions fails, the honest answer is not to scent.
When should a clinic decide not to use any fragrance at all?
When the building has a persistent smell whose cause has not been traced; when the circulation is really clinical corridor rather than public space; when oncology day-care or similar shares air with the waiting area; when nobody is named to own the setting and the refill; and when a large part of the patient list has been advised to avoid strong smells.
Are reed diffusers appropriate in a clinic?
In an administration cabin, a records room or a small consulting-suite lobby, yes — they are alcohol-free, need no power and cost from ₹749. In a large waiting hall, no: output falls away past about a metre, they take 24 to 72 hours to establish, and a glass bottle of oil at reach height where children wait is a spill and ingestion risk.
Can a clinic use candles or plug-in fresheners instead?
No. An open flame in a healthcare facility is a fire-safety and insurance matter, and SOSA's candles from ₹379 are not the product for a clinic. Plug-ins are usually vetoed by a facility's own electrical checklist before fragrance is even discussed. SOSA does not make a room spray; the sprays in the range are car perfumes.
What can a clinic honestly say a fragrance does?
That the entrance and waiting areas carry a light fragrance as part of housekeeping, and that clinical rooms are kept fragrance-free. Nothing else. A fragrance does not affect any patient or condition, does not aid recovery, and does not clean or purify air — a diffuser is not an air purifier.
Four conditions, and a legitimate no
Appropriate, conditionally — and ₹0 is a real answer
The Vaayu is ₹11,999: waterless with no standing tank, up to 1000m³ or about 2,000–3,000 sq ft, a 400ml fill for roughly 75 days, under 38 dB, 1h/4h/8h/24h timers, app control, auto-stop and a key-lock, supplied with four hotel-inspired scents. The Aangan is ₹25,999 for up to 3,000m³ or an atrium. Alcohol-free reeds from ₹749 for a cabin. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
See the Vaayu · ₹11,999 Alcohol-free reeds · from ₹749
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Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, on the four conditions a healthcare building has to meet before any fragrance is appropriate in it, the five kinds of facility where the honest answer is to scent nothing at all, what the material brief actually rules out, and where alcohol-free reeds, waterless machines and HVAC-connected units each genuinely belong.
Facts verified August 2026: Product facts used in this guide. SOSA Vaayu ₹11,999: waterless cold-air nebulising diffuser, atomises undiluted fragrance oil to a dry residue-free nano-mist with 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 × 80.5 × 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 ₹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 ₹1,899 (500ml, 270–320 sq ft, 16–18 hours on low, 3–6 drops per tank, steady/2H/4H timers, three 15ml Hotel Collection scents included), Boond ₹899 (300ml), Megh ₹3,499 (6 litres). Hotel Collection water-based fragrance 15ml ₹299, 100ml ₹999, 300ml ₹1,799, Pack of 7 at 15ml ₹1,799 against ₹2,093 bought singly; the Vaayu and Aangan take their own undiluted oil rather than these water-based bottles. Alcohol-free reed diffusers from ₹749, requiring 24–72 hours to reach their working level. Free shipping above ₹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.