Stand at your own entrance for twenty minutes on a list day and watch what actually comes through the door. People arrive on crutches. They leave in slings, in braces, in boots and casts, sometimes in a wheelchair they did not arrive in. There are walking frames. Almost nobody is alone - there is a spouse carrying two bags, a son with the car keys, a daughter holding the discharge paperwork - and the whole group moves at the speed of the slowest person in it. Doors take longer. Turns take longer. Sitting down and standing up take longer, and standing up is the harder of the two.
That is your front of house. It is a room whose primary job is to let slow, encumbered, accompanied people get from the door to a chair and back out again without anything in the way. Every object in it is either helping that or obstructing it, and a scenting unit is an object. It has a footprint, it has a cable, it needs a live socket, and in this building those three facts constrain where it can go far more tightly than any question of throw or coverage. A machine cannot stand where it narrows a route, and its cable cannot cross one. That sentence decides more about the outcome here than the register does.
The second thing that makes this speciality distinct is dwell, and it runs the other way from what you would guess. Orthopaedic day cases often carry the longest post-procedure observation period of anything in a day-surgery building, which means the attendant is not waiting for two hours - they are waiting for four, five, sometimes longer, and then helping somebody out to a car. Your attendant lounge is the most continuously occupied room in the facility, and it is the room the level should be set for.
Everything here concerns the public half only. Pre-operative areas, procedure and operating rooms, post-procedure and post-anaesthesia recovery, sterile and decontamination areas, clinical and drug storage and clinical waste get nothing, not a lower setting, and what may be introduced into the air of a building with a surgical zone is decided by your own clinical leadership, infection-control policy and facilities engineers.
Where can a diffuser physically go in an orthopaedic waiting area? High and out of the traffic. Behind or above the reception counter, on a wall bracket clear of head height, or on a shelf in a recess - never on a low table in an open floor where a walking frame turns, and never anywhere that requires an extension lead across a walkway. The SOSA Vaayu at ₹11,999 runs on DC 12V / 1A at 5W and needs a live socket, and it mounts freestanding, on a wall or into HVAC - in this building the wall mount is almost always the right choice, sited next to an existing socket rather than to a trailing lead.
Which room should the level be set for in an orthopaedic centre? The attendant lounge, and specifically the person who has been sitting in it for four or five hours. Orthopaedic day cases often carry the longest post-procedure observation in a day-surgery building, so the family waiting area is the most continuously occupied room in the facility. Set the level for hour five rather than minute three and it will be quietly right for everybody; set it for the walk-through and it will be roughly double what the longest sitter can take.
The floor and the routes. Trace the line from the entrance door to the reception counter, from the counter to the seating, from the seating to the consulting corridor and from the corridor back out to the car. Those are the four lines that matter, and in this speciality they are walked by somebody on two crutches, by somebody in a wheelchair being pushed by a relative who is also carrying a bag, and by somebody in a leg brace who cannot bend one knee. A route that works for you at walking pace may not have a turning circle at the corner. Anything freestanding on that line - a planter, a sign on an A-frame, a bin, a side table, a diffuser - is in the way, and a cable running across it is worse than in the way.
The seating. The single most useful thing in an orthopaedic waiting area is a chair with arms, at a height somebody can push themselves up from, because standing up is the harder half of sitting down. Benches without arms look better in photographs and are the wrong furniture here. You also need clear space beside a proportion of the chairs - somewhere a walking frame can stand, somewhere a wheelchair can park without blocking the route, somewhere a leg can go straight out without being a trip hazard for the person walking past. All of that eats floor area, which is why an orthopaedic lounge is usually bigger per seated person than a lounge in any other speciality, and that has a direct consequence further down this page: more floor area at the same headcount means more cubic metres of air for the same number of noses.
The socket. This is the most boring paragraph on the page and the one that decides whether the installation is any good. A scenting machine is mains powered - the SOSA Vaayu runs on DC 12V / 1A at 5W and needs a live socket - so before you choose a position, find out where the live sockets are. If the position you want has no socket near it, the answer is an electrician or a different position. It is never an extension lead, a cable taped down with tape that will curl up in a fortnight, or a run along a skirting board across an opening. In a building where a substantial share of your visitors are moving with an aid, a trailing cable is not a tidiness issue.
Then the fragrance. Clean and unsweet, because a sweet or plush register in a building with an operating room reads as covering something. Quiet Luxury - white tea, bergamot and cedar - is the safe default; White Tea Serenity - white tea, aloe and cedar - suits a pale, glazed, minimal fit-out; Forest Suite - cedarwood, vetiver and green leaves - is right where there is timber, stone or planting. One register across the whole public half, held at a level set for the family that has been in the lounge for five hours, written on a card taped to the machine. And nothing at all behind the clinical door, decided in the end by your own clinical, infection-control and engineering leads rather than by this page. A portion of every SOSA order supports girl-child education through Nanhi Kali.
I want to justify spending a whole page on furniture and cables rather than on fragrance, because it is unusual and because the alternative is worse. In every other commercial interior I write about, the scenting machine is a small appliance that goes wherever it fits. In an orthopaedic front of house it is a piece of equipment being introduced into a room that is already tight on circulation, and the position decisions are therefore not interchangeable. The machine has to be somewhere it cannot be knocked, somewhere it does not reduce a clear width, somewhere its cable does not cross a line that anybody walks, and somewhere it is still in the volume you actually intend to scent. That last constraint is what makes this hard: the obvious out-of-the-way spots in a building like this are the corridor and the alcove, and both of them are the wrong volume.
The second thing this speciality gets wrong is set by the shape of its day. Orthopaedic lists tend to produce long tails. The procedure finishes and the patient stays for observation, and the observation period here is frequently the longest in the building, which means your lounge fills in the morning and does not empty until late afternoon. That is a room holding the same twelve people for five hours. In a showroom you set the level for a fifteen-minute visit; here the honest calibration point is hour five, and hour five is always quieter than instinct suggests. If it is right at hour five it was quietly right at minute three, and the person at minute three was never going to be the one who minds.
Third, and it matters more here than in most places: ask your own staff. The front desk and the billing counter are in that air eight to ten hours a day, closer to the machine than anybody else in the building, and in this speciality they are also doing physical work - fetching a wheelchair, holding a door, walking somebody out. If any of them mentions the fragrance, that is a recalibration signal and not a tolerance problem, and "off" must be a state anybody on the desk can set for a named unit without going to find a manager.
And judge the room the way an eight-o'clock arrival on crutches experiences it: from the doorway, on a Monday, in a building that has been shut since Saturday evening. Not from behind the counter on a Friday afternoon, when your nose stopped reporting the fragrance six hours ago.
Front of house as a circulation problem, and where a machine is actually allowed to stand
Three things decide reception fragrance in an orthopaedic day-surgery centre, and the first two are about the room rather than the air.
The first is circulation: how people physically move through the front of house, how much clear width the routes need, what the furniture has to do, and what that leaves as legal positions for a piece of equipment. The second is power and mounting: where the live sockets are, whether a wall bracket is available, and how you get a machine into the right volume without putting a cable across a walkway. The third is the ordinary commercial arithmetic - connected volume, ceiling height, ventilation, door traffic and level - with one speciality-specific twist, which is that this building's most important room is occupied for longer than any comparable room elsewhere in this bank.
Let me put some numbers on the building, because they explain why the arithmetic twist matters. An orthopaedic front of house tends to be generous, for the circulation reasons above. A 600 sq ft reception and waiting area at a 12 ft ceiling is 600 x 12 = 7,200 cubic feet, and 7,200 divided by 35.3 is about 204 cubic metres. A 900 sq ft combined reception and lounge at 12 ft is 10,800 cubic feet, about 306 cubic metres. A 1,200 sq ft open front of house at 12 ft is 14,400 cubic feet, about 408 cubic metres. A 700 sq ft attendant lounge at 12 ft is 8,400 cubic feet, about 238 cubic metres; the same room at a 14 ft ceiling is 9,800 cubic feet, about 278 cubic metres. A smaller centre with a 400 sq ft reception at 10 ft is 4,000 cubic feet, about 113 cubic metres. State the ceiling assumption every time, because it moves the answer more than anything else on the list.
Now the twist. Because you need space beside chairs for frames and wheelchairs, and wider routes between seating banks, an orthopaedic lounge carries fewer people per square foot than a lounge in a speciality where everybody walks in unaided. So you are scenting a larger volume of air for a smaller number of noses - which is not a problem, but it does mean the honest sizing conversation is about cubic metres rather than about how many chairs are in the room. Two facilities with twelve seated attendants each can easily be 170 and 306 cubic metres respectively, and the second one is not "the same room with more space". It is nearly twice the air.
What does not decide it: the note list, the name of the register, or any comparison of throw and longevity between blends. SOSA does not publish that comparison and this page will not invent one. Connected volume, ceiling height, ventilation rate, how often the entrance opens and the level you set swamp any difference between one blend and another in a room nobody has stood in.
What an orthopaedic front of house has to accommodate is not unusual, it is just specific. Crutches need a wider path than a person does and they need somewhere to lean when their owner sits down, which if you do not provide it is the arm of the next chair or the floor in the middle of the route. Walking frames need a parking space beside a seat, and a turning circle at every corner. Wheelchairs need clear width, a place to sit that is not in the middle of the walkway, and a route to the consulting corridor that does not involve a tight dog-leg around a planter. Slings, braces and boots change how somebody sits: a leg that does not bend goes out in front of the chair, which means it goes into whatever space is in front of the chair, which is usually the route. And almost everybody is accompanied, so the party arriving is two or three people wide with bags.
The furniture consequences are well known to anyone who has fitted out one of these buildings, and they are worth restating because they interact with the scenting decision. Chairs with arms, at a height that can be pushed up from, because standing is the harder half. Some clear space beside a proportion of the seats. Nothing low and freestanding in the middle of the floor. Nothing with a sharp corner at knee height. Floor finishes that do not have a lip at a threshold. Coffee tables are a liability in this room in a way they are not in a dermatology waiting area.
And now the part this page exists to say. A scenting unit is an object in that room, and it competes for the same floor as everything else. Three constraints follow, and they are hard rather than advisory.
One: it cannot stand where it narrows a route. Not at a corner, not beside a doorway, not at the end of a seating bank where the gap between the bank and the wall is the way through. Not on the floor of an open lobby at all, if the lobby is the circulation space, which it usually is.
Two: its cable cannot cross a route. Ever, in any form, taped or not. This is the constraint that most often forces a rethink, because the position that looks perfect for coverage frequently has no socket near it. The fix is to move the machine to the power or to have an electrician move the power to the machine. It is not to run a lead.
Three: it has to survive being in a room where things get knocked. A freestanding unit on a low surface in a room full of crutches and frames will eventually go over, and a water-based ultrasonic going over puts a wet patch on a hard floor in a building where a substantial proportion of visitors are moving with an aid. That is an ordinary housekeeping and slip-risk consideration rather than anything clinical, and it is a sensible reason to prefer a wall-mounted waterless unit in the public areas of this particular speciality, or at minimum to site any tank machine behind the counter where staff control the space around it.
Put those three together and the legal positions in a typical orthopaedic front of house reduce to about three: on the wall above head height in the waiting volume, on a shelf or recess in the same volume, or behind the reception counter. That is a short list, and it is the real constraint on this project - not coverage, not register, not price.
The wall mount, above head height, inside the waiting volume. This is usually the right answer in this speciality and it solves three problems at once: it is out of the circulation entirely, it cannot be knocked over, and it puts the unit in the volume you actually intend to scent rather than in an adjacent one. The SOSA Vaayu at ₹11,999 mounts freestanding, on a wall or into HVAC, so the bracket option is there. Two cautions. First, height changes distribution - a unit high on a wall in a 12 or 14 ft room is working with the room's air movement rather than against it, which is fine, but it also means the level that seemed right when the machine sat on a desk will not be the level that is right on the wall, so recalibrate after moving it. Second, do not mount it above a seat. Nobody should be sitting directly underneath the nozzle for five hours, and in this building somebody will be sitting in the same chair for five hours.
Behind or above the reception counter. The other good answer, especially in a smaller centre where reception and waiting are one volume. The counter is staff territory, so the machine is supervised, the cable is in a staff zone rather than a public one, and there is almost always a socket. The trade-off is that a unit behind a counter is closest to the people most exposed to it - your desk and billing team, eight to ten hours a day - so if you site it there, the setting conversation with those staff is not optional and the named-unit off switch has to be genuinely available to them.
Freestanding on the floor of the lobby. Almost never, for everything in the previous factor. If a facility insists, it belongs in a corner that is demonstrably outside every route, against a wall, with the socket behind it and no lead, and even then it is the position that will eventually be moved by a cleaner and put back somewhere worse.
The corridor. This is where machines end up in real buildings, because the corridor has a socket, has wall space and is out of the seating. It is the wrong answer here for exactly the same reason it is wrong everywhere else in this bank, and the reason is worth restating in an orthopaedic context. A corridor is a fifteen-second space connected to everything. Put the scent in the corridor and the corridor is what you are dosing; the waiting room gets the leak, and the clinical doors at the far end get tested every time somebody walks through them. In this speciality there is an extra wrinkle: your corridor is also your slowest-moving space, because patients are walking it with aids, so anything in that corridor is experienced for longer than the fifteen seconds a corridor usually gets. That is an argument for keeping it uncluttered, not for scenting it.
The reed question. Facilities often ask whether a reed diffuser from ₹749 solves the whole problem, since it has no plug, no noise and nothing to switch off, and in a small centre it sometimes does. In this building, site it behind the counter rather than on a low table in the waiting area, for the same knock-over reason as above - a reed is a vessel of liquid with sticks in it, and a low table beside a walking frame is where it will eventually end up on the floor. A reed on a high shelf or a counter back is a perfectly good baseline for a small reception, lasts about 6 to 10 weeks, and costs nothing to run.
One general point that applies to every position. Whatever you mount and wherever you mount it, the unit goes in the volume you intend to scent, facing into it, away from any return grille and away from the door to the clinical side. If you are unsure whether a position sits in a supply airstream or next to a return, that is a question for your own facilities engineers rather than for a page, and it is worth asking before anything is drilled into a wall.
Day-care work in most specialities produces a short tail. The procedure happens, there is a period of observation, the patient is discharged and the attendant's afternoon is returned to them. Orthopaedic day cases frequently produce the longest post-procedure observation of anything in a day-surgery building - and on top of that, discharge itself takes longer here, because getting somebody into a car with a new brace or a fresh cast, with instructions to follow and a follow-up to book, is a physical process rather than a paperwork one.
The commercial consequence is specific. Your attendant lounge is the most continuously occupied room in the facility. An attendant here is not a patient: they have driven somebody in early, they are not fasting, they are not about to be called, and their entire experience of your building is the chairs, the light, the wi-fi, whether anybody told them how long it would be, and the air. They will be in that air for four, five or more hours, and they will be in it again at the follow-up. That makes the lounge the most legitimately scentable room in the building and, simultaneously, the room with the lowest correct level in it.
Those two things are not in tension once you see the logic. The lounge deserves the attention precisely because somebody is there long enough for a house character to mean anything at all - a thirty-second lobby cannot carry a signature, a five-hour room can. And the level has to be low precisely because five hours is a long time to be in anybody's fragrance decision. Set for hour five. Everything else follows: if the room is unobjectionable to the person who has been in it since eight in the morning, it is quietly right for the person who walked in at noon, and that person was never going to be the complainant.
Do the arithmetic for the lounge specifically rather than for the building. A 500 sq ft lounge at 12 ft is 6,000 cubic feet, about 170 cubic metres. A 700 sq ft lounge at 12 ft is 8,400 cubic feet, about 238 cubic metres, and at 14 ft it is 9,800 cubic feet, about 278 cubic metres. A 900 sq ft lounge at 12 ft is 10,800 cubic feet, about 306 cubic metres. If reception and lounge are one connected volume with no door between them - common in these buildings, and usually correct for circulation reasons - then you are scenting the sum, and a 1,200 sq ft connected front of house at 12 ft is 14,400 cubic feet, about 408 cubic metres. Against that, the waterless Vaayu's approximately 1000 cubic metres of connected air is generous, which is an argument for running one machine gently rather than for buying two.
Two more honest points about level in this building. The first is the entrance door, which in an orthopaedic centre behaves slightly differently from other specialities: it is held open longer and more often, because people are coming through it slowly and in groups, and in many facilities it is an automatic door that therefore stays open for longer cycles. That is a real air exchange with the street and it is the honest reason the entrance area loses fragrance faster than the lounge behind it. The correct response is to accept that the threshold will be quieter than the seating and to set for the seating, not to raise the level until the doorway announces itself. And the response is never, in any phrasing, to reduce air exchange or close a vent so the fragrance holds - in a healthcare building that is the worst trade available, and ventilation and the engineers win every time.
The second is adaptation, which produces the same sentence in every facility I have ever visited: "it was perfect for the first week and then it faded." It almost never faded. The nose of the person judging it adapted within minutes of arriving each morning, and the level that was correct on day one now reads as nothing to the human being most exposed to it. The correct response is to ask three people who have just come in off the street, before telling them a diffuser exists. If all three say they notice nothing at all and nobody is bothered, you are approximately right. If two of them can name a product, come down one notch and leave it alone for a fortnight.
- Walk the four routes at half speed with one arm occupied and note every obstruction.
- Fix seating and clear widths first - chairs with arms, space beside them for a frame.
- Mount it high or behind the counter, beside a live socket, no cable across a route.
- Set the level for the attendant who has been in the lounge five hours, then leave it.
Which register, at what level, and the room that is occupied longest in the building
With the room and the mounting settled, the register is the easy part. There are seven 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.
The filter for a surgical building applies here as everywhere in this bank: cool, dry and transparent, nothing sweet, nothing plush. A sweet or plush character in a room where a visitor knows there is an operating room somewhere behind a door reads as covering something rather than as generosity, and that is a statement about the context rather than about the blend.
Quiet Luxury - white tea, bergamot and cedar - is the default, and in an orthopaedic centre it has a specific virtue worth naming. This is a speciality with an unusually wide age range in the waiting room: a twenty-four-year-old in for a knee scope at eight and an eighty-year-old having a hand procedure at eleven, each with an escort of their own generation. A register that is hushed, polished and unsweet is the one that the widest span of people will find unobjectionable, and unobjectionable is the target rather than faint praise.
White Tea Serenity - white tea, aloe and cedar - is clean, weightless and spa-like, and it is the answer where the fit-out is pale, glazed and minimal. It is the register that most naturally reads as clean rather than as scented, which is the precise distinction a healthcare building is trying to make, and it is very hard to over-notice - a real advantage in a room where somebody is sitting for five hours.
Forest Suite - cedarwood, vetiver and green leaves - is grounding and biophilic green, and it is the right answer in the increasingly common orthopaedic centre with a timber, stone or planted interior, often attached to a physiotherapy or rehabilitation suite with a more athletic, contemporary look. It reads as structural rather than decorative, so a very mixed public receives it as part of the building.
Tea Garden - jasmine, green tea and white tea - is the least risky floral in the collection because the jasmine sits inside the tea rather than on top of it. It suits a softer, more residential front of house and wants a lower setting than the white-tea registers. In a room with a five-hour dwell, treat any warmth as a reason to come down a notch rather than to run it at the same number.
Warm Welcome - citrus, floral and sandalwood - is warm and gracious hospitality and a genuine threshold register, usable in a neighbourhood family-facing centre where warmth is honestly the positioning, and only at a fraction of hotel level. Old-World Glamour - amber, violet and woods - is plush and evening-elegant and the wrong shape for a clinical building, because plush is the character that reads as covering. Lobby Bar - citrus, pepper and amber - is bold, playful and after-dark and has no home in a day-care hospital; turning a theatrical register down makes it quiet, not appropriate, and pepper announces in a room that must not announce.
Those seven are the water-based Hotel Collection for the SOSA ultrasonics. The Vaayu and the ducted machines run four hotel-inspired waterless blends instead, supplied with the machine as one of three bundle choices - two different fragrance systems rather than the same bottle in two sizes. I will not rank the seven on measured throw or longevity: SOSA does not publish that, and your connected volume, ceiling height, ventilation rate, door behaviour and setting swamp any difference between blends.
| Scent | Why it suits the mood |
|---|---|
| Quiet Luxury · reception and the whole public half | White tea, bergamot and cedar. Hushed, polished and unsweet, and the most reliably unobjectionable register across an unusually wide age range - which is what an orthopaedic waiting room actually holds. One register across entrance, reception and lounge, held at one level, is what makes it read as a house character rather than as a room product. |
| White Tea Serenity · pale, glazed, minimal interiors | White tea, aloe and cedar. Clean, weightless and the hardest register in the collection to over-notice, which matters more here than almost anywhere because somebody is sitting in it for five hours. Reads as clean rather than as scented, which is the exact distinction a healthcare building wants to make. |
| Forest Suite · timber, stone, rehab-adjacent fit-outs | Cedarwood, vetiver and green leaves. Grounding and green, and the right answer for a contemporary centre with a physiotherapy or rehabilitation suite and a more athletic interior. It reads as structural rather than decorative, so a mixed public receives it as part of the building instead of as somebody's choice. |
| Nothing at all · the clinical half, and the corridor | Pre-operative areas, procedure and operating rooms, post-procedure and post-anaesthesia recovery, sterile and decontamination areas, clinical and drug storage and clinical waste get nothing - not a lower setting, nothing. The corridor gets nothing either, for the ordinary reason that a corridor connects everything and dosing it doses the doors at both ends. Your clinical and infection-control leads own that list. |
So the buying answer for this building. For a single reception and a modest waiting area, an ultrasonic is often the whole purchase: the SOSA Boond at ₹899 for a small enclosed desk or the SOSA Sukoon at ₹1,899 for a reception and billing area, both running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999, and the pack of seven 15ml bottles at ₹1,799 is how you audition registers in your own air. Site any tank machine behind the counter rather than in the public floor, for the ordinary reason that a knocked tank is a wet floor and this is not the building in which to invent one. If a lounge runs from seven in the morning until late afternoon without anybody free to refill, the SOSA Megh at ₹3,499 and its 6 litre tank is the practical answer.
For a larger connected front of house - and orthopaedic front of house tends to be larger than average for the circulation reasons above - the waterless SOSA Vaayu at ₹11,999 is the commercial answer, and in this speciality its mounting options are as much of the argument as its coverage. Wall mount takes it out of the circulation entirely. Waterless cold-air nebulising of undiluted oil means no water, no humidity and no wet residue, so there is no tank to knock over and nothing to spill on a floor people are crossing with aids. It is rated for approximately 1000 cubic metres of connected air, takes a 400ml tank, runs on DC 12V / 1A at 5W and so needs a live socket, and carries CE, RoHS and SGS. The Bluetooth app and timer let you scent list hours only, which matters when the building is shut from the evening to seven the next morning. It is an ambient fragrance product for public areas: not a medical device, not an infection-control or air-treatment device, not validated for clinical use, and it adds scent rather than removing odour.
Two systems and they are not interchangeable: the ₹299 water-based bottle never goes into a Vaayu or into Aangan at ₹25,999 for approximately 8,000 to 10,000 sq ft or Meenar at ₹38,500 for approximately 12,000 to 18,000 sq ft, which run waterless nebulising oil and are ducted decisions taken with your own HVAC consultant - never into air handling serving a clinical zone. For no plug, no noise and nothing to switch off, the SOSA reed diffusers are their own registers from ₹749 and last about 6 to 10 weeks: Mountain Breeze at ₹849 is Himalayan pine, sage and cedar, Morning Freshness at ₹749 is Malabar lemon, mint and eucalyptus, Garden Bloom at ₹799 is British rose and night-blooming jasmine, Evening Calm at ₹799 is Kashmir lavender and chamomile, and Fresh Brew at ₹849 is Coorg coffee and Kerala vanilla, which is the wrong shape at a surgical desk for the sweetness reason above. The 130ml is from ₹1,249, with 300ml refills at ₹2,399 and 500ml at ₹3,499. Put any of them on a counter back or a high shelf rather than on a low table in the waiting floor.
For the neighbouring questions: if your centre shares a building with other day-surgery specialities and you are wondering whether they need separate rules, that is can different surgical specialities require different fragrance policies. If you want the honest ranking of which specialities are genuinely good candidates for public-area scenting, read which day-care medical specialities are most suitable for scenting only their public areas. And for the speciality that argues hardest for a completely neutral building, see should an ENT day-surgery centre use ambient fragrance.
What SOSA does not publish and this page will 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. Bring your plan to WhatsApp at +91 96192 18531. Bulk orders are welcome, custom label or logo on product is available, and bespoke composition 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 day-care hospital is almost always the entrance, reception, billing and attendant lounge 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 day-care hospital is the most careful room I write about, and I want to be plain about why. Somebody walks in at seven in the morning to have a procedure. Their mother or their husband sits in your lounge for four hours with nothing to do but look at the walls and worry. And a few metres away, behind doors that should stay shut, there is a zone where none of this belongs at all.
So the answer here is not a stronger machine or a cleverer scent. It is a boundary. Entrance, reception, billing and the attendant lounge are the public half of your building and they are allowed to feel like somewhere that was thought about. Pre-op, procedure, recovery and everything clinical are the other half, and the honest answer for all of it is nothing. Not less. Nothing.
Two things I say to every facility that asks. Fragrance adds scent - it never subtracts one, so it cannot cover disinfectant, and a scent laid over disinfectant makes a third smell that reads worse than either. And the decision is not mine or yours alone: what is introduced into the air of a building with a surgical zone belongs to your clinical leads, your infection-control team and your engineers. I would rather lose the sale than have a page of mine used to argue past them.
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, an infection-control product or an air-treatment device, and none is validated for use in a clinical environment. Nothing in this guide is clinical, infection-control or engineering advice: in a facility with a surgical or procedural zone, what may be introduced into the air is governed by the operator's own clinical leadership, infection-control policy and facilities engineering, and their decision 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.