Here is the whole list in one breath, and the rest of the page is the reasoning. Treatment and procedure rooms. Any cabin with a patient mid-treatment, including a cabin that would otherwise be fine. Anywhere instruments or dressings are handled or stored. The sterilisation or decontamination area. Any store where clinical consumables are kept. Staff-only rest and changing rooms. Toilets, in the sense that a plug-in aerosol is not the answer there either. And any room used by a patient who has told you they react to fragrance.
None of the reasons on this page are medical ones. This is not clinical advice, no SOSA product is a medical device or a clinical product, and nothing here says a fragrance is good for or bad for anybody. The reasons are practical: these are small rooms with shut doors, they hold people for a long time or hold materials for a long time, they belong to staff rather than to the practice's presentation, or somebody has asked. Those are ordinary operational reasons and they are enough.
And the standing rule that governs the whole list: the treating clinician's judgement about their own rooms and their own patients overrides every line of it. If a clinician wants to add a room to this list, it goes on. If they want the front of house left alone too, that is a complete answer and this page does not argue with it.
Why leave the staff room unscented when staff are inside the clinic anyway? Because they are already in the scented air for the whole shift and their own room is the one place they get a say. A receptionist sits closer to a diffuser for longer than any patient ever will - eight to ten hours a day against a patient's forty minutes - so the staff rest and changing area is the room where they choose, and the honest default is nothing unless the team asks for something. If any member of staff mentions the scent anywhere in the building, that is a recalibration signal rather than a tolerance problem.
What about the toilets - surely those need something? They need extraction, and extraction is not something a fragrance product provides. Fragrance adds scent and does not remove odour, so a plug-in aerosol firing into a small unventilated room produces a combination rather than a solution, and it is the single most noticeable thing in most Indian commercial buildings. Get the fan working and running properly first. After that, if you want something, a single reed diffuser from ₹749 held quiet and matched to the front-of-house character is plenty.
Treatment rooms and procedure rooms, including nail surgery. Small, doors shut, patient in one position for half an hour, clinician in there all day. A cabin of 80 to 120 sq ft at a 9 ft ceiling is 720 to 1,080 cubic feet, which divided by 35.3 is about 20 to 31 cubic metres - between a quarter and a third of a normal reception, so anything that reaches it is concentrated by the room itself.
Any cabin with a patient mid-treatment, including a cabin you would otherwise be relaxed about. This is a state rather than a room, and it is why an open-plan or curtained treatment area is unscented as a whole: you cannot know in advance which bay holds the person who would rather not have it.
Anywhere instruments or dressings are handled or stored. The trolley bay, the prep bench, the drawer unit, the cupboard where packs live. Materials sit in whatever air is in the room for days or weeks, and an item that arrives at the couch smelling of the room it was stored in is a distraction at exactly the wrong moment.
The sterilisation or decontamination area. It is a working room with its own extraction and its own routine, and adding an ambient register to it does not improve the room; it adds a third smell to a space that already has a strong character of its own and a job to do.
Any store holding clinical consumables. Same reason as the dressing bench, more so, because a store is closed for longer and turns over more slowly.
Staff-only rest and changing areas. Your team is in the scented air for the whole shift. The staff room is the one room in the building that is theirs, and the default there is nothing unless they ask.
Toilets, in the specific sense that a plug-in aerosol is not the answer there either. That room is an extraction problem before it is a fragrance problem, in every business in India, and fragrance adds scent rather than removing odour.
Any room used by a patient who has told you they react to fragrance. That is a standing arrangement rather than a favour, it is recorded on the file so nobody has to be told twice, and "off" is a state anybody on the team can set for a named room without a discussion.
What is left is reception and the waiting area. One volume, small, and the entire opportunity - which is why the answer in a foot clinic is usually cheaper than the owner expected. A portion of every SOSA order supports girl-child education through Nanhi Kali.
The reason the list can be stated that simply is the most useful physical fact in this whole bank: a closed door ends one connected body of air and begins another. That is not a figure of speech. Every coverage rating you will read, SOSA's included, assumes one connected body of air, and a machine cannot push scent through a shut door. So "scented reception, unscented clinical building" is an arrangement you can actually deliver rather than a claim you are hoping nobody tests - provided the doors are genuinely shut as a normal state, and provided the building is not joined somewhere you have not looked.
Two things undo it, and both are worth checking before you trust the list. The first is a door that is propped or ajar for a third of the day, which is a boundary a third of the time. The second is a partition that stops at the false ceiling rather than going up to the slab, which makes the void above one continuous space and, in a building that returns air through that void, an actively driven shared path. If either is true in your clinic, the list on the plan is aspiration rather than description, and the honest response is to fix the path rather than to lower the setting and hope.
The other thing worth saying about lists is that they are only as good as their edges. Almost every clinic gets the treatment rooms right and then loses the argument in the places nobody wrote down: the corridor, because that is where the free socket was; the store cupboard, because somebody put a sachet in it; the staff toilet, because a plug-in was cheaper than a fan repair. The value of a written list is that it makes those places decisions rather than accidents.
The full list, grouped by why each one is on it
It is worth being clear about what "unscented" means here, because the word does more work than people assume. It does not mean odourless, it does not mean clinically neutral in any measurable sense, and this page makes no claim of that kind. It means that no fragrance is deliberately introduced into that room - no machine, no reed, no plug-in, no aerosol, no scented bin liner, no fragranced surface product chosen for its smell. That is a purchasing and housekeeping decision, and it is entirely within your control, which is exactly why it is a useful specification.
The reasons a room ends up on the list fall into four groups, and grouping them is what turns a list you have to memorise into a rule you can apply to a room this page has never seen.
Group one: rooms that hold a person for a long time in a small volume with the door shut. Treatment cabins, procedure rooms, nail surgery, the casting area. The physics does the arguing here - these rooms concentrate whatever arrives - and the exposure is asymmetric, because the clinician is in them all day and the patient is not.
Group two: rooms that hold materials rather than people. Instrument benches, dressing trolleys, consumable stores, the decontamination area, the linen cupboard. Things stored in a room sit in that room's air for days, and a stored item that arrives smelling of its cupboard is a distraction rather than a feature.
Group three: rooms that belong to the staff. The rest room, the changing area, the place people eat. These are excluded for a reason that has nothing to do with physics: they are the only part of the building where the people who are most exposed to your fragrance decision get to be out of it.
Group four: rooms that have been asked for. Any room a fragrance-sensitive patient will use, for as long as they use it. This is a standing arrangement, it is written on the file, and it does not require a conversation each time.
Apply those four groups to a room this page has not mentioned - the gait lab, the plaster room, the orthotics workshop, the store where footwear samples live - and you will get the right answer without needing the list to be exhaustive. Which is fortunate, because no list is.
One last piece of framing. Nothing on this list is on it because fragrance is dangerous, because a room needs protecting from a product, or because of any health consideration - this page makes no claim of that kind in either direction and nothing here is clinical advice. Rooms are on the list because scenting them would make them worse at the job they are for, or because they are not yours to scent. That is the entire argument, and it is enough.
Procedure and nail-surgery rooms. Everything above, plus a longer appointment, plus more equipment, plus a patient who is paying close attention to the room because of what is about to happen in it. A nameable fragrance in that room does not read as care. It reads as covering, and it reads that way most strongly to the person who is already slightly braced.
Any cabin with a patient mid-treatment. Worth stating separately because it is a state rather than a place. Even in a clinic that has decided a particular room may carry a trace of the front of house - a consultation room that opens off the waiting area, say - the moment a patient is in it with their shoes off and their foot in somebody's hands, the answer is no. That is the practical reason an open-plan or curtained treatment area is unscented as a whole: you cannot know in advance which bay holds the patient who would rather not, and a curtain does not divide air anyway. Four curtained bays of 100 sq ft in a 400 sq ft area at 9 ft are one volume of 3,600 cubic feet, about 102 cubic metres, not four rooms.
The casting, plaster and orthotics room. On the list for a slightly different practical reason. Patients try footwear on and off repeatedly and move about, so shoes are out and open for longer and people are warmer than they are sitting down. That is a source and ventilation situation, and adding an ambient register into it produces a combination rather than an improvement, because fragrance adds scent and never removes odour. Airflow and footwear discipline are the tools for that room.
The gait lab or assessment area, where one exists. People are walking, running or working on a plate for twenty minutes at a time and they are warm. Same logic, and there is a second reason: this is a room where the patient is being observed and is aware of it, and anything that draws attention to the room rather than the task is a small tax on the appointment.
And the exposure argument, which applies to every room in this group and is the one I would put first if I could only make one. A patient has half an hour in a cabin, twice a year. A podiatrist has eight to ten hours a day, six days a week, for years, in rooms of 20 to 31 cubic metres with the door shut, working at close range. Any decision about the air in those rooms is a decision about somebody's working conditions, and it belongs to the person who works there rather than to whoever is buying the diffusers. The treating clinician's judgement about their own rooms and their own patients overrides every recommendation on this page.
The instrument bench and the trolley bay. Wherever instruments are laid out, prepared or parked between patients. The practical reason is simple: this is a working surface with a routine attached, and an ambient register in that space is one more variable in a room whose entire purpose is that nothing about it varies. Nobody wants to be wondering, at the couch, whether something smells the way it should because of the room it was stood in.
Wherever dressings and packs are handled. Same argument. This page makes no claim about materials or their properties in either direction and nothing here is clinical advice; the point is only that a room where things are prepared should be a room with as few incidental inputs as possible, and a fragrance is an incidental input that you chose and can therefore un-choose.
The sterilisation or decontamination area. On the list twice over. First because it is a materials room, and second because it is a room with a strong character of its own and its own extraction. Adding an ambient register there does not replace what is in the air; it joins it, and a scent laid over an existing smell makes a third smell that is usually worse than either. That is the single most important sentence in this whole bank and it applies to this room more directly than to any other. If the decontamination area smells of itself, the tools are extraction and routine, not a diffuser.
Any store holding clinical consumables. Cupboards, shelving bays, the room with the shelving unit and the door that sticks. Slow turnover, closed door, long dwell for the stock. And in practice this is where sachets and gels end up, because they are cheap and somebody thought a stuffy cupboard needed help. A stuffy cupboard needs the door opened and the stock rotated.
The linen and laundry store. Worth naming because it is the one place where a scented product looks most reasonable and is least useful. Fabric is the most absorbent thing in your building and the most patient - it takes up whatever is in the room and gives it back slowly for weeks, which is exactly why laundering matters so much in a foot clinic and exactly why you do not want the store adding a character of its own to everything that leaves it.
The footwear store, where one exists. A sports or orthotics practice often has one, and it is a room full of the single most concentrated source in the building. Every instinct says to put something fragranced in there. Do not. Fragrance adds scent and does not remove, neutralise, absorb or purify odour, so what you get is a combination, and a small closed room concentrates the combination. That room wants ventilation, a door that shuts, and stock that does not sit for months.
The general rule for this whole group, if you want one sentence to apply to a room this page has not listed: if the room's job is to hold things that will later be used somewhere else, leave the air in it alone.
There is a practical dividend too. A staff room with no ambient register is a reliable reference point. Somebody who has been sitting in it for twenty minutes has a partly reset nose, which makes them the best person in the building to walk the front of house and tell you honestly whether the level is right. If you scent the staff room as well, you have removed the only unadapted nose on the premises.
And the standing rule that goes with it: if any member of staff mentions the scent anywhere in the building, treat it as a recalibration signal and not as a tolerance problem. Turn it down first and have the conversation second. They are in that air far longer than you are when you are judging it.
Toilets. On the list in a specific sense that needs stating carefully, because "leave the toilets unscented" sounds like a strange instruction. What is on the list is the reflex: a plug-in aerosol, a timed spray unit, a gel block, firing concentrate into a small room on a schedule. That is the wrong instrument, for the reason this whole bank turns on - fragrance adds scent and it does not remove odour, so what you get in a small unventilated room is a combination that is more noticeable than either component and that everybody recognises instantly as a business trying to cover something. It is also, in most Indian commercial buildings, the single loudest fragrance decision anyone has made, and it is usually in the room where a patient is on their own with time to notice.
The order is the same as everywhere else. Extraction first: find out whether the fan actually runs, whether it runs on a timer or on the light switch, whether it has ever been cleaned, and whether it is doing anything at all. Then housekeeping frequency. Then, if you want something, one reed diffuser from ₹749 - no plug, no timer, no burst, nothing to switch off - held quiet and chosen to be a quieter version of what the front of house runs rather than a completely different character announcing itself down the corridor. Morning Freshness at ₹749 is Malabar lemon, mint and eucalyptus and is the freshest and most obviously clean-reading of the set. That is a finish on a room that has already been sorted out. It is not a fix, and this page will not pretend it is.
Any room used by a patient who has told you they react to fragrance. The fourth group, and the one that overrides the other three in the sense that it can add rooms to the list that are not otherwise on it - including the reception, if that is what is needed. The right shape for this is a standing arrangement rather than a courtesy: ask at booking rather than at the door, record it on the file so nobody has to be told twice, put nothing in the room they will use, and make "off" a state that anybody on the team can set for a named room without a discussion and without finding a manager. No health or allergy claim is being made here in either direction, and none should be made by your team; the operational answer to "I react to fragrance" is "of course, it is off in that room", and nothing more needs to be said by anybody.
Which is also the closing rule for the whole page. This list is a default, not a ceiling. A clinician can add to it at any time, for any reason, without justifying it, and their judgement about their own rooms and their own patients overrides every line of it.
- Write the list on the floor plan in ink, date it, and put it where stock is ordered.
- Add the rule that off is a state anyone can set for a named room, no discussion.
- Check the edges: corridor, store cupboards, staff toilet, linen and footwear stores.
- Re-walk it every six months with a nose that has been outside for fifteen minutes.
The short list of rooms that are left, and what to run in them
So what is left, and what should it run? Reception and the waiting area, and the corridor patients arrive through if it is genuinely part of that volume. That is the list.
There are seven registers in the water-based Hotel Collection, each SOSA's own hotel-inspired interpretation - SOSA is independent and not affiliated with, endorsed by or connected to any hotel brand, and that is worth saying plainly rather than trading on somebody else's name. For a clinic front desk, the field narrows for a contextual reason rather than a matter of taste: clean and unsweet reads right, and sweet or plush reads as covering.
White Tea Serenity - white tea, aloe and cedar - is clean, weightless and spa-like, and it is the register that most naturally reads as clean rather than as scented, which is exactly the distinction a foot clinic is trying to draw. Quiet Luxury - white tea, bergamot and cedar - is hushed and polished, the safe default when you have no strong view, and neutral enough that a runner in for a gait assessment and an eighty-year-old in for routine care will both find it unobjectionable. Forest Suite - cedarwood, vetiver and green leaves - is grounding and green, and it is the right answer for a clinic with timber, concrete, plants or a sports-medicine look; it reads as structural rather than decorative, which is why mixed patient groups tend to receive it as neutral.
Those three are also the three that behave best at the edge of the unscented list, and on this page that matters more than usual. All three are transparent enough that a small residual trace reaching a corridor or a cabin door is not identifiable as a fragrance - it reads as a slightly better-than-neutral building rather than as the reception having got in. That property is what turns a long unscented list from a rule into a lived reality.
Tea Garden is jasmine, green tea and white tea, serene and calm, with the jasmine sitting inside the tea rather than on top of it; it is the best floral option for a clinic front desk and it wants a lower setting than the two white-tea registers. Warm Welcome is citrus, floral and sandalwood, warm and gracious, and it genuinely works in a family practice used with more restraint than a hotel would use it. Old-World Glamour is amber, violet and woods, plush and evening-elegant; it is a beautiful register and the wrong one here, because plush in a clinical building is exactly the character that reads as covering. Lobby Bar is citrus, pepper and amber, bold and after-dark, and it has essentially no home in a foot clinic.
SOSA does not publish comparative throw or longevity figures for the seven and this page will not invent them. What is described above is character and identifiability at low concentration, not measured strength, and how any of it behaves in your building is decided by your connected volume, ceiling height, ventilation rate, soft furnishing and setting rather than by the blend. Register is taste. Level is what actually goes wrong, and the fastest way to make a long unscented list fail is to run the one scented room too hot.
| Scent | Why it suits the mood |
|---|---|
| People in small closed rooms · treatment, procedure, nail surgery, casting, gait | Cabins of 80 to 120 sq ft at 9 ft are 720 to 1,080 cubic feet, about 20 to 31 cubic metres, with the door shut and nothing to dilute what accumulates. The clinician is in that air eight to ten hours a day at close range against a patient's half hour. Add any cabin with a patient mid-treatment as a state rather than a place, which is why a curtained bay bank is unscented as a whole. |
| Materials, not people · instruments, dressings, decontamination, stores, linen | Things stored in a room sit in that room's air for weeks, and an item that arrives at the couch smelling of its cupboard is a distraction at the wrong moment. The decontamination area is on the list twice: it is a materials room and it already has a strong character of its own, and a scent laid over an existing smell makes a third smell rather than replacing the first. |
| Rooms that belong to the staff · rest room, changing area, where people eat | Not physics, manners. Your team live inside the fragrance decision for eight to ten hours a day and this is the room where they are out of it, so the default is nothing unless they ask. There is a dividend: a staff room with no register is the only partly reset nose in the building, and that is the person to send out to judge the front of house. |
| Toilets and any named patient's room · extraction first, and off on request | The plug-in aerosol is the wrong instrument: fragrance adds scent and never removes odour, so a burst of concentrate into a small unventilated room makes a combination that everybody recognises. Fix the fan, then one quiet reed from Rs 749 if you want a finish. And any room used by a patient who has told you they react to fragrance is unscented as a standing arrangement, recorded on the file, set by anyone, without a discussion. |
The purchasing consequence of a long unscented list is a small purchase, and that is the point rather than a consolation. If the only volume you are scenting is reception and waiting, do the arithmetic and see how modest it is. A 150 sq ft reception at a 10 ft ceiling is 150 x 10 = 1,500 cubic feet, which divided by 35.3 is about 42 cubic metres. A 250 sq ft reception and waiting area at 10 ft is 2,500 cubic feet, about 71 cubic metres. A 300 sq ft front of house at 12 ft is 3,600 cubic feet, about 102 cubic metres. Even the largest of those is a fraction of what a commercial machine is built for.
Which means an ultrasonic is very often the whole purchase: the SOSA Boond at ₹899 for a small enclosed front desk, or the SOSA Sukoon at ₹1,899 for a normal reception and waiting area, both running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999. The pack of seven 15ml bottles at ₹1,799 lets you try registers in your own air rather than choosing from a description. If your waiting area is large and runs from nine to eight without a break, the SOSA Megh at ₹3,499 and its 6 litre tank saves somebody refilling at lunchtime.
The SOSA Vaayu at ₹11,999 is the commercial answer for a larger connected front of house, and in a clinic with a long unscented list its two defining features are exactly the right ones. It is waterless cold-air nebulising of undiluted oil, so there is no water, no humidity and no wet residue anywhere near a clinical building. And it has a Bluetooth app and timer, which means the front of house can be scented before the list starts and stopped mid-morning, so the busiest clinical hours are the quietest fragrance hours. It is rated for approximately 1000 cubic metres of connected air - SOSA's own copy also states 2,000 to 3,000 sq ft scented evenly - takes a 400ml tank, mounts freestanding or on a wall or into HVAC, runs on DC 12V / 1A at 5W and is mains powered so it needs a live socket, and carries CE, RoHS and SGS. It is an ambient fragrance product and not a clinical or air-treatment device: it adds scent rather than removing odour, and it cannot travel through a closed door.
Two systems, and they are not interchangeable. The ultrasonics are water-based cool-mist machines; the Vaayu and the ducted machines - Aangan at ₹25,999 for approximately 8,000 to 10,000 sq ft and Meenar at ₹38,500 for approximately 12,000 to 18,000 sq ft - run waterless nebulising oil, and the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine.
And for a clinic whose list is so long that the front of house is the only room left and it is small, the SOSA reed diffusers deserve a proper look rather than a footnote: no plug, no noise, nothing to switch off and nothing to get wrong. Morning Freshness at ₹749 is Malabar lemon, mint and eucalyptus; Mountain Breeze at ₹849 is Himalayan pine, sage and cedar and sits closest to a clinic's woody register; Garden Bloom at ₹799 is British rose and night-blooming jasmine; Evening Calm at ₹799 is Kashmir lavender and chamomile; Fresh Brew at ₹849 is Coorg coffee and Kerala vanilla, lovely in a home and the wrong register for a clinical front desk. The 130ml is from ₹1,249, refills are ₹2,399 for 300ml and ₹3,499 for 500ml, and a reed lasts about 6 to 10 weeks.
To go further into the parts this page only touches: if fragrance is already reaching a room on this list, the fault-finding order is in how to stop reception fragrance drifting into foot-care procedure rooms. On why there is no intensity gradient to design across the cabins on this list, read whether every treatment cabin should have the same fragrance intensity. The fourth group on this list is set out properly in how to accommodate fragrance-sensitive patients in a podiatry practice. And if you have not started at all, the phased method is the most conservative way to introduce ambient scent into a foot clinic.
What SOSA does not publish, and this page will therefore not invent: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time. Those depend on run hours, connected volume and setting. That conversation happens on WhatsApp at +91 96192 18531. Bulk orders are welcome, custom label or logo on product is available, and bespoke composition made only for your practice is a real SOSA service discussed there rather than priced on a page - though the cheaper honest answer comes first, which is that one of the seven registers held consistently already is a signature, because consistency makes a signature and uniqueness does not.
The SOSA scenting range
SOSA sells two different systems and one of the commonest mistakes is mixing them up. Size by the connected air volume of the room you are actually scenting - which in a clinic is almost always the reception and waiting area alone - floor area multiplied by ceiling height gives cubic feet, and cubic feet divided by 35.3 gives cubic metres. A door that stays shut ends one volume and begins another.
| Machine | System | What it is for | Price |
|---|---|---|---|
| SOSA Boond | Ultrasonic · water-based | A small desk or corner unit for one enclosed room - runs the water-based Hotel Collection | ₹899 |
| SOSA Sukoon | Ultrasonic · water-based | A larger ultrasonic for a reception or consultation room - Hotel Collection from ₹299 | ₹1,899 |
| SOSA Megh | Ultrasonic · 6L tank | A large-tank ultrasonic for a bigger lounge that runs all day | ₹3,499 |
| SOSA Vaayu | Waterless cold-air nebulising | The commercial machine - approx 1000 m3 of connected air, Bluetooth app and timer, no water and no humidity | ₹11,999 |
| SOSA Aangan | HVAC nebulising | Ducted scenting for approximately 8,000 to 10,000 sq ft | ₹25,999 |
| SOSA Meenar | HVAC nebulising | Ducted scenting for approximately 12,000 to 18,000 sq ft | ₹38,500 |
Two systems, and they are not interchangeable. The ultrasonics - Boond, Sukoon and Megh - run the water-based Hotel Collection from ₹299. Vaayu and the HVAC machines run waterless nebulising oil; the ₹299 water-based bottle never goes into a Vaayu. SOSA blends are SOSA's own hotel-inspired interpretations and SOSA is independent and not affiliated with any hotel brand. A portion of every order supports girl-child education through Nanhi Kali.
- Vaayu ₹11,999 - waterless cold-air nebulising, approx 1000 m3 connected air, Bluetooth app and timer, 400ml tank, freestanding or wall / HVAC mount, DC 12V / 1A, 5W, mains powered, CE / RoHS / SGS.
- Aangan ₹25,999 for approximately 8,000 to 10,000 sq ft and Meenar ₹38,500 for approximately 12,000 to 18,000 sq ft - both ducted into HVAC.
- The ultrasonics - Boond ₹899, Sukoon ₹1,899, Megh ₹3,499 - run the water-based Hotel Collection from ₹299, with 100ml refills at ₹999.
- Not published, and therefore never stated on this page: consumption rate, refill frequency, monthly running cost, machine lifespan, installation lead time or any minimum order. Those go to WhatsApp +91 96192 18531.
Versailles
A foot clinic has a harder job than most places I write about, and it is worth saying plainly: your patients take their shoes and socks off, all day, in rooms that are often small and often air-conditioned with the windows shut. That is a real environment, and no bottle solves it. What solves it is where the shoes go, how the air moves, and what gets cleaned and laundered.
So the order matters more here than anywhere. Find the source. Move the air. Clean the surfaces and the soft things. Only then, in the reception where people wait, add one low register and hold it. Fragrance adds scent - it never subtracts one - and a scent laid over an odour makes a third smell that is usually worse than either.
The other thing I say to every clinician who asks me: the treatment rooms are not the opportunity. A patient lying back with a foot in someone's hands, a room with instruments and dressings in it, a person who has told you they react to fragrance - none of those want an ambient scent, and I would rather lose the second machine than pretend otherwise. Your clinical judgement about your own rooms outranks anything I have written here.
Frequently asked questions
Facts verified September 2026: SOSA Vaayu ₹11,999 is a waterless cold-air nebulising diffuser rated for approximately 1000 m3 of connected air, with Bluetooth app and timer, a 400ml tank, freestanding or wall / HVAC mounting and a DC 12V / 1A, 5W mains supply. SOSA Aangan ₹25,999 covers approximately 8,000 to 10,000 sq ft and SOSA Meenar ₹38,500 approximately 12,000 to 18,000 sq ft, both ducted into HVAC. The ultrasonic machines - Boond ₹899, Sukoon ₹1,899 and Megh ₹3,499 - run the water-based Hotel Collection fragrance from ₹299, with 100ml refills at ₹999; that water-based bottle is not used in a Vaayu or an HVAC machine. Reed diffusers start at ₹749 and last roughly 6-10 weeks. A coverage rating assumes one connected body of air; scent does not travel through a closed door. Ambient scent research supports improved evaluations of a space and its service, longer dwell and stronger recall at moderate effect sizes - it does not support claims about bookings, fees or retention. Fragrance adds scent and does not remove, neutralise or purify odour, and no SOSA product makes any health, antibacterial or air-purifying claim. No SOSA product is a medical device, a clinical product or an air-treatment device, and nothing in this guide is clinical advice - the treating clinician's judgement about their own rooms and patients overrides every recommendation here. SOSA blends are SOSA's own hotel-inspired interpretations; SOSA is independent and not affiliated with any hotel brand. Prices and availability are subject to change - see the live product pages.