The reason this question feels hard is that it is asked about a studio when it should be asked about air volumes. A maternity studio is never one body of air. It is a reception or waiting area where a client arrives, sits for ten minutes, hands her coat over and waits for her partner to park; a changing area; and a shooting room where she stands, sits, kneels, holds a drape, gets warm under lights and stays for an hour or two. Those rooms usually have doors between them, and a door that stays shut ends one body of air and begins another. That single fact is what allows a studio to be a warm, welcoming, scented place at the front and a completely neutral one where the work happens, without either half being a lie.
The honest reason for the second half of the answer is the ordinary one, and it does not need dressing up. Pregnant clients are commonly scent-sensitive, and nausea is an ordinary part of pregnancy - most people reading this already know that, and half of them have lived it. That is a straightforward reason to keep the room she spends an hour in unscented. It is not, in either direction, a claim about health, safety or benefit, and this page will not make one. SOSA does not publish anything of that kind and no page selling a diffuser has any business inventing it. What SOSA can say is much smaller and much more useful: here is where scent goes, here is where it does not, and here is why the wall between the two is real.
Why not scent the shooting room as well? Because a maternity client is in that room for an hour or two, is often physically uncomfortable, is partly undressed under a drape and cannot easily step outside for air the way she can in a shop. Pregnant clients are commonly scent-sensitive and nausea is ordinary in pregnancy. That is a reason to leave the room neutral, not a health claim in either direction, and her own preference overrides every recommendation on this page.
Does that mean I have wasted my money on a diffuser? No. The waiting area is where a client forms her first impression of the studio, where she waits, where her partner and often her mother sit for the whole session, and where she comes back out to look at the back of the camera. That room is a legitimate and worthwhile place to scent. A SOSA Sukoon at ₹1,899 covers it. The SOSA Vaayu at ₹11,999 is for a larger connected front-of-house, not for pushing scent into a room you have decided to leave alone.
Everything else about the room points the other way, and it is worth being specific rather than vague, because vagueness is how studios end up compromising. A maternity session is not a thirty-second transaction. She arrives, changes, and then stays in one room for roughly an hour to two and a half hours. She is often standing under lights that are warm. She is frequently in a drape or a fitted gown rather than her own clothes, which means she cannot simply walk out into the corridor for a minute if the room feels close. She is being posed, which means she is holding positions rather than moving freely. And she is doing all of that while being photographed, which is the least comfortable moment anybody has to say "actually, could you turn that off". The combination of long dwell, warmth, stillness and social awkwardness is exactly the combination that argues for a neutral room, and it would argue for one even if nobody in the room were pregnant.
Then add the ordinary fact. Pregnant clients are commonly scent-sensitive, and nausea is an unremarkable, widely known part of pregnancy. Nobody needs a study for that and this page is not offering one. It is simply a reason - a good, sufficient, everyday reason - to make the shooting room's default state unscented. Note the word default. Not "unscented on request", not "we can turn it off if you mind". A room you have to ask about is a room a polite person will not ask about, and a maternity client is very often being polite in somebody else's space on a day she has paid for and does not want to make awkward.
What this page will not do, in either direction, is tell you that a SOSA product is safe for, good for, beneficial to or harmful to a pregnant client. SOSA does not publish that, no diffuser page should invent it, and a studio owner who repeats an invented claim to a client is taking on a risk that has nothing to do with fragrance and everything to do with having said something they cannot stand behind. The correct thing to say to a client, and it is also the true thing, is: "the room we shoot in has no fragrance in it at all." That sentence needs no qualification and no science behind it.
So the answer to the question in the title is: yes at the front, no in the room, and the door between them is what makes both halves honest. A portion of every SOSA order supports girl-child education through Nanhi Kali.
The mistake this page exists to prevent is not over-scenting. It is the assumption that a studio has to pick one policy for the whole building. It does not, and the studios that get this right are usually the ones who stopped thinking of the place as "the studio" and started thinking of it as three separate lungfuls of air with walls between them.
There is a second mistake, quieter and more common, which is scenting a room that looks like reception but is actually connected to everything. A waiting area that opens straight onto the shooting floor through a wide arch with no door is not a separate volume, whatever the floor plan calls it. It is one room with furniture in the middle of it. If that is your layout, then the honest reading is that you have one air volume containing a maternity shoot, and the answer for the whole thing is no fragrance until you have a door.
And a third, which costs nothing to avoid: your own team. An assistant, a retoucher or a studio manager is in that building for eight to ten hours a day, five or six days a week, while a client is in it for two hours once. They are the most exposed people in the building by a very wide margin. If one of them says the reception is strong, they are right and you are adapted, and the correct response is to turn it down first and have the conversation second.
Why the answer splits at the door and not at the client
There are three things worth understanding before you decide anything, and only one of them is about fragrance. The first is that a maternity studio is a set of separate air volumes rather than a single space, and the boundary between them is a physical object you can open and close. The second is the shape of the session itself: how long she is in that room, in what state, and how easily she could leave it. The third is what the front-of-house is actually for, because once you accept that the shooting room gets nothing, the reception has to carry the entire experience of the studio feeling looked after - and it can.
Notice what is not on that list. The register is not on it. Whether you would prefer white tea or cedar in your reception is a real question and this page answers it later, but it is the last decision and the least consequential one. Neither is the machine. A studio does not solve this problem by buying a better diffuser, and quite a lot of studios solve it by moving the diffuser they already own eight feet to the left and shutting a door that had been propped open with a light stand since March.
It is also worth naming the emotional shape of a maternity booking, because it changes what "good service" means. This is usually a planned, once-in-a-lifetime session booked weeks ahead, often at a specific window in the pregnancy, frequently with a partner and sometimes with an older child or a mother in tow. The client has usually looked at your work for a long time before booking. She arrives with expectations about the pictures, and with a body that is doing something demanding. The studio's job in that hour is to be easy: warm enough, private enough, unhurried, and free of anything she has to negotiate with. A room with a fragrance in it that she did not choose is one more thing to negotiate with, and it earns the studio nothing.
Which brings up the commercial question honestly, since somebody is going to ask it. Does not scenting the shooting room cost you anything? No. The published research on ambient scent supports improved evaluations of a space and its service, longer dwell and stronger recall, at moderate effect sizes - and every one of those effects is available to you in the room where she waits, arrives, sits with her partner and comes back to look at the screen. Nothing in that literature says the effect has to happen in the room where the shutter is firing, and nothing anywhere supports the idea that a scent in your shooting room wins bookings. It does not. So the split costs you nothing you can name, and it buys you a sentence you can say out loud to every maternity client without hedging.
Do the arithmetic once, by hand, and you will trust the mechanism instead of hoping about it. Floor area multiplied by ceiling height gives cubic feet; cubic feet divided by 35.3 gives cubic metres. Take a fairly typical setup. The maternity shooting room is 250 sq ft with a 12 ft ceiling: 250 x 12 = 3,000 cu ft, and 3,000 / 35.3 is about 85 m3. The reception and waiting area is 200 sq ft, also at 12 ft: 200 x 12 = 2,400 cu ft, which is 2,400 / 35.3, about 68 m3. Those are two volumes of 85 and 68 cubic metres with a door between them. They are not one 153 m3 space unless the door is open, and if the door is open during a maternity shoot you have a privacy problem that matters considerably more than a fragrance one.
This is why the split is achievable rather than a fudge. You are not asking a machine to be clever, or to know which room it is allowed to enter. You are asking it to do the only thing it can do, which is fill the volume it is standing in, and then you are closing the boundary of that volume. A SOSA Sukoon at ₹1,899 running the water-based Hotel Collection from ₹299 in a 68 m3 reception is a very small machine in a decent-sized room, which is exactly what you want. It is not going to overwhelm 68 m3, let alone reach through a door into 85 more.
The failure cases are all boring and all fixable. A door propped open for convenience is the commonest by a distance - by a stand, by a cable, by a wedge somebody put there in July. A door with a large undercut for carpet that was removed. A shared return grille in a ducted air conditioning system, which can join two rooms that look separate on a plan and can move air between them all day. A corridor that both rooms open onto, with the machine sitting in the corridor because that is where the free socket is, so the corridor is what you are actually scenting and both rooms are getting the overflow. Walk your own plan and look for those four things specifically before you conclude anything about your machine.
And the thing that is never the fix, in any phrasing: do not reduce the ventilation or the air exchange in the reception so the fragrance hangs about longer. A well-ventilated studio is genuinely harder to scent and that is a good problem. You solve it with placement and with a lower expectation, not by closing a vent or turning off an extractor, and certainly not in a building where somebody is going to spend two hours in the next room.
Now add the parts nobody puts on a floor plan. She is often partly undressed under fabric, which means stepping out into a corridor for air is not a casual thing. She is the subject of everybody's attention in the room, which is the single hardest social position from which to raise a small objection. She has usually paid a meaningful amount for this session and booked it weeks ahead, so there is a strong pull towards not making a fuss. And she may be tired, or hot, or uncomfortable in the ordinary way of late pregnancy, none of which she is likely to announce.
Put those together and you get a room where the cost of getting the fragrance wrong is high and the cost of leaving it neutral is nothing. That asymmetry is the whole argument, and it holds even before you get to scent sensitivity. Long dwell plus warmth plus stillness plus social difficulty equals a room that takes the lowest dose in the building, and in this particular room the lowest dose available is zero.
Then the ordinary fact, stated plainly and left there: pregnant clients are commonly scent-sensitive, and nausea is an ordinary part of pregnancy. That is widely known, it is not a medical claim, and it does not need a citation to be a sensible operational input. It is a reason to leave the room neutral. It is emphatically not a licence for anybody, SOSA included, to say that a fragrance is safe for, good for, beneficial to or harmful to a pregnant client. SOSA does not publish that in either direction and this page refuses to invent it. The useful line is the small one: nothing in the room, because there is no upside to something and a real downside if the day goes badly.
One practical note that follows from all of this. If your maternity room and your general portrait room are the same room, which they very often are in a studio under 1,500 sq ft, then the room is unscented full stop - not unscented on maternity days. A setting that changes with the booking sheet will be got wrong within a month, usually by a stand-in on a Saturday. Rooms hold policies reliably. Calendars do not.
Count the minutes properly and you will see why. A maternity client is in your reception when she arrives, which is the moment first impressions are actually made. She is in it again while she changes and while you set up. Her partner is in it for most of the session, because partners usually sit down with a phone once the shoot starts. Her mother, if she has come, is in it for the whole time. She is back in it at the end, in her own clothes, looking at the back of the camera or a tethered screen, which is the moment she decides how she feels about the whole thing. And she is in it again some weeks later for the viewing or the album, which in a lot of studios is a two or three hour sitting. That is a great deal of client time, and all of it is in a room you are free to scent.
So the front-of-house has to carry the studio's whole sensory personality, and it can. The register belongs here, held low - reception is a short-dwell room and can take a little presence, but "a little" in a maternity studio means less than you would run in a fashion studio, because you have people sitting in it for hours and because a partner or a mother may be scent-sensitive too and nobody has asked them anything. A single register on the whole front-of-house, held at a level a person notices as atmosphere rather than as a product, is the target.
The other half of the upside is that you get to say something clean and specific to clients. Studios spend a lot of effort trying to sound thoughtful in their pre-shoot emails. "The room we photograph in has no fragrance in it, and the waiting area is very lightly scented - if you would prefer we switch that off too on the day, just say and we will" is a sentence that does the job in one line. It is concrete, it is verifiable by her when she walks in, it does not claim anything about health, and it hands the decision to her. That last part matters most: her preference overrides the whole page.
And a small structural point. Ask at booking rather than at the door. A question in the booking form or the confirmation email gets an honest answer, because she is at home, unhurried, and nobody is looking at her. The same question asked in a doorway with a partner and a photographer present gets "no, no, it's fine" from almost everybody. That is not a fragrance technique, it is just how people behave, and it is worth designing around.
Finally, a point about the second appointment, which maternity studios consistently undervalue. The viewing or album sitting that follows the shoot happens weeks later, in your front-of-house, and it is frequently two or three hours long with the same two people on the same sofa. That is the single longest sitting a maternity client will ever do in your building, and it is the one where the buying happens. If you are going to think hard about the level in any room, think about it there - a register that is charming for ten minutes at a threshold is a great deal of register at hour two, and by then she may well be in late pregnancy or newly postpartum with a baby asleep in a car seat beside her. Under-dose that room and let consistency carry it. She will register that the space felt considered and well looked after without ever identifying why, which is exactly the outcome the evidence supports and exactly what you wanted.
- Draw the plan and mark every door that stays shut during a shoot - your boundaries.
- Set the shooting room to zero as a standing default, written down, not as a request.
- Put the machine inside reception, not in the corridor that both rooms open onto.
- Ask about fragrance at booking, in writing, and let her answer override everything.
What the waiting area can carry, and what the room gets
Assume you have accepted the split. The shooting room is at zero, and the only remaining question is what the front-of-house runs and how much of it. Take the second half first, because it is the half that goes wrong.
Level. A maternity studio's waiting area should run lower than a fashion studio's reception, and for a specific reason rather than out of general caution. A normal reception is judged by thirty-second dwell. A maternity reception is not: a partner sits in it for ninety minutes, a mother sits in it for the whole session, and the client herself is in and out of it several times and then returns for a viewing that may last three hours. So it is a short-dwell room by architecture and a long-dwell room by use, and when a room is both, you dose it as the long-dwell one. In practice that means a small machine in a decently sized volume, running at a low setting, judged from the doorway on a morning the building has been shut rather than from the middle of the room at four in the afternoon.
Register. Seven exist in the water-based Hotel Collection, each one SOSA's own hotel-inspired interpretation - SOSA is independent and is not affiliated with, endorsed by or connected to any hotel brand, and that is worth saying plainly rather than implying otherwise. Quiet Luxury is white tea, bergamot and cedar, with the character of a hushed, polished lobby, and it is the default I would give a maternity studio with no strong view: it is quiet, it reads as considered rather than as a product, and it is about as socially unobjectionable as fragrance gets. White Tea Serenity is white tea, aloe and cedar - clean, weightless and spa-like, and the right answer if your waiting area is pale, daylit and soft, which a great many maternity studios are.
Warm Welcome is citrus, floral and sandalwood, warm and gracious, and it suits a studio whose whole positioning is family and hospitality rather than editorial cool. Tea Garden is jasmine, green tea and white tea, a serene tea-and-jasmine character, and it is the floral that behaves itself because the jasmine sits inside tea rather than on top of it. Forest Suite is cedarwood, vetiver and green leaves, grounding and green, and it is the one to pick if your front-of-house is concrete, plants and dark timber. Those five cover almost every maternity studio in India.
The two I would generally steer away from in this particular vertical are not bad registers, they are simply loud for the room. Old-World Glamour is amber, violet and woods, plush and evening-elegant, and plush is a lot to sit in for ninety minutes. Lobby Bar is citrus, pepper and amber, bold and after-dark, and a maternity waiting area is neither of those things at eleven on a Tuesday morning.
A word on how to choose, since the note lists are the least useful part of the decision. Stand in your own waiting area in daylight and look at what the room is already saying. Pale walls, linen, light wood and a lot of window are asking for white tea. Concrete, steel and plants are asking for cedar and vetiver. Warm paint, soft furnishing and family portraits on the wall are asking for something in the Warm Welcome direction. A register that agrees with the room disappears into it, which is the goal. A register that argues with the room is the one clients find faintly odd without ever being able to say why.
Two things this page will not do. It will not rank the seven registers against each other on throw or longevity, because SOSA does not publish comparative figures and anybody who gives you them is guessing - what actually decides how a register behaves in your room is the connected volume, the ceiling height, the ventilation rate, how much soft material is in the room and the setting you chose. And it will not tell you that any register is more suitable for a pregnant client than any other, because that would be a health claim wearing a taste-recommendation costume. If a client is sensitive to fragrance, the answer is less fragrance or none, not a different bottle.
Which leads to the last and most important line on this page, and it deserves to be repeated rather than mentioned once. The client's own preference overrides every recommendation here. If she says on the booking form that she would rather the waiting area were unscented too, switch it off before she arrives and do not make a project of it. If she arrives and says the reception is strong, turn it off, prop the outside door for a few minutes and move on without an explanation. A studio that can switch a machine off in thirty seconds without a discussion is a studio that has understood the whole point of this page. One that has to find the app, find the password and find the person who set it up has not.
| Scent | Why it suits the mood |
|---|---|
| Quiet Luxury · reception and waiting area | White tea, bergamot and cedar - hushed and polished, and the default for a maternity front-of-house with no strong view. Run it lower than you would in a general portrait studio, because partners and mothers sit in that room for the whole session rather than passing through it in thirty seconds. |
| White Tea Serenity · pale, daylit waiting areas | White tea, aloe and cedar - clean, weightless and spa-like, and the register that agrees with linen, pale paint, light oak and a lot of window. If your waiting area was designed to look soft and uncluttered, this is the version of soft and uncluttered that you can smell. |
| Warm Welcome · family-positioned studios | Citrus, floral and sandalwood - warm and gracious hospitality. The right register for a studio whose brand is family rather than editorial, and a good fit for a waiting area that also holds an older child, a grandmother and a partner for two hours at a stretch. |
| Nothing at all · the shooting room, always | Zero, as a standing default rather than as a request. She is in that room for an hour or two, warm, still, often draped and in the worst possible social position for raising an objection. Write it on the plan so nobody helpfully adds a diffuser in six months, and tell her at booking that the room has no fragrance in it. |
The buying answer is smaller than most people expect, because you are deliberately scenting one room rather than a building. For a single reception or waiting area, an ultrasonic is enough: the SOSA Boond at ₹899 for a small enclosed front desk, or the SOSA Sukoon at ₹1,899 for a normal waiting area of 60 to 80 m3, both running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999. If your front-of-house also serves as a viewing and album room that runs all day, the SOSA Megh at ₹3,499 and its 6 litre tank saves you refilling it during a sitting.
The SOSA Vaayu at ₹11,999 belongs in a maternity studio only when the connected front-of-house is genuinely large - a big open reception, lounge and viewing area joined together with no doors between them, running towards the sort of volumes where an ultrasonic starts to look under-sized. It is waterless cold-air nebulising of undiluted oil, so no water, no humidity and no wet residue, which is why it is the machine that belongs in a room with equipment and wardrobe in it. It takes a 400ml tank, mounts freestanding or on a wall or into HVAC, runs on DC 12V / 1A at 5W so it needs a live socket, and carries CE, RoHS and SGS. Its Bluetooth app and timer matter more here than anywhere: they let you scent only your opening hours, and they let a staff member switch reception off from a phone in the ten seconds before a client walks in.
Two systems, and they are not interchangeable. The ultrasonics are water-based cool-mist machines that put moisture into the air; 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. The ₹299 water-based bottle never goes into a Vaayu or an HVAC machine. Ordinary studio prudence applies to both: keep any machine away from open equipment cases and away from the spot where lenses get changed, and do not point a mist machine at anything you care about. That is prudence rather than a protection claim, and SOSA publishes no claim of that kind.
There is also a genuinely good argument for a SOSA reed diffuser from ₹749 in a maternity front-of-house, and it is not a budget argument. A reed has no plug, no noise and nothing to switch off, which sounds like a disadvantage until you notice the other side of it: it also has nothing to leave running by accident overnight and nothing for a stand-in to turn up on a busy Saturday. It sits in a corner and lasts about 6 to 10 weeks. The reeds are their own registers rather than Hotel Collection ones: 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; Mountain Breeze at ₹849 is Himalayan pine, sage and cedar; and Fresh Brew at ₹849 is Coorg coffee and Kerala vanilla. The 130ml is from ₹1,249, with 300ml refills at ₹2,399 and 500ml at ₹3,499. The one caution is that a reed cannot be switched off in thirty seconds, so if a client says the room is strong, the answer is to move the reeds out of the room rather than to apologise at them.
If you want to go further into the operational side of this: the runbook version, covering what to ask at booking, how to word it, who is allowed to switch a machine off and what to do when a client reacts, is how fragrance should be handled in a studio serving pregnant clients. If your studio also photographs newborns, the answer there is firmer and shorter, and it is set out in should a newborn photography studio remain fragrance-free. And if you want the mechanism itself worked through properly, with the volumes, the placement and the airflow, read reception scenting versus shooting-room scenting in a newborn photography studio, which is the page that explains exactly why a closed door is a real boundary.
What SOSA cannot publish, and what this page therefore will not state, is how fast any of it gets used up. Consumption depends on run hours, connected volume and setting, and those are yours rather than SOSA's, so there is no published consumption rate, refill frequency, monthly running cost or machine lifespan here. If you want that conversation with numbers from your own floor plan, it happens on WhatsApp at +91 96192 18531. Bulk orders are welcome, custom label or logo on product is available, and a bespoke composition made only for your studio is a real SOSA service that is discussed there rather than priced on a page.
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 - 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 photography studio sells a feeling before it sells a photograph. A couple sitting on your sofa choosing an album is doing something emotional, and they are doing it in your air for three or four hours. That is a long time to be in a room, and it is the reason I keep telling studio owners to go lower than they think.
The mistake I see is scenting the whole studio at one level. A reception is a thirty-second room and can carry a little presence. A consultation lounge is a three-hour room and needs a whisper. A newborn or maternity room should usually have nothing at all, and I would rather say that plainly than sell a second machine.
And the unglamorous part first: fragrance adds scent, it does not remove odour. If the studio smells of hairspray, of last night's crew dinner or of a room that has been shut since Sunday, scent laid on top makes a third smell. Find the source, air the room, clean it - and then, when the air is honest, give it a signature.
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. 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.