The first is air change. Every system either recirculates the air already in the building, brings in outside air, or does some mixture of the two - and the more fresh air it brings in, the faster anything you add to that air is removed. This has nothing to do with the fragrance and everything to do with the building. A studio that is properly ventilated is genuinely harder to scent than a sealed one, and I want to be completely unambiguous about what follows from that: it is a trade you accept, not a problem you defeat. You never close a vent, reduce fresh air, shut off extraction or turn a system down so that a fragrance lasts longer. Not once, not on a slow day, not in any phrasing.
The second is the local airstream. A split unit - the wall-mounted box that most Indian studios actually have - throws a strong directed jet of cold air across one room. That jet is far more powerful than anything a 5W diffuser is doing, and depending on where the machine sits it will either carry your output usefully around the room or strip it away from the place you wanted it.
The third is connection. A ducted system running off one air handler links rooms that look completely separate on a floor plan. Two rooms with a solid wall and a closed door between them can be sharing air through the ceiling, which is why fragrance sometimes turns up where you did not put it and fails to appear where you did.
And there is a fourth effect that is not really airflow at all: cooling changes how a room reads at exactly the same setting. This page takes all four in order, and then tells you what to do about each one.
Where should the machine go relative to the AC? Out of the direct jet from a split unit or a supply grille, and well away from any return grille. The jet will pick your output up and carry it somewhere you did not choose, and the return will pull it out of the room entirely. Aim for the gentle circulation in between - and if you genuinely want to scent a large ducted floor, HVAC mounting or a ducted machine such as Aangan at ₹25,999 is the designed answer.
Why does my studio smell different in summer? Because in summer the system is working harder, the doors are shut, the fresh-air pattern changes and the rooms are colder - and a colder room reads differently at exactly the same machine setting. Expect to make two small deliberate adjustments a year rather than a nudge every week, and make them by asking somebody who has just walked in rather than by trusting your own nose.
It removes it, at a rate you did not choose. Every air conditioning system moves a certain amount of air, and some proportion of that is fresh air brought in from outside rather than room air recirculated. The higher that fresh-air proportion, the faster the contents of the room are replaced - including whatever you have added. Two studios with identical rooms, identical machines and identical settings can read completely differently for this reason alone. If your studio was designed with good outside-air provision, you have a healthier building and a harder scenting job, and the honest response is to place well and set sensibly rather than to interfere with the ventilation. I will keep saying it because it is the one line in this subject that has no exceptions: you do not close vents, block returns, shut down extraction or reduce air exchange so that fragrance hangs around longer.
It moves it, hard, in one direction. A wall-mounted split unit is a small, powerful, extremely directional air mover. Stand in front of one and you can feel the jet three or four metres away. A diffuser sitting inside that jet does not disperse into the room; it is captured and delivered wherever the jet goes, which in most studios is along a ceiling and then down a far wall, or straight out through the top of a doorway. A diffuser sitting in the unit's intake - the air it draws in, usually at the top - is even worse off, because its output goes through the machine and comes out somewhere else entirely. Move two metres out of the stream and the same machine at the same setting behaves like a different product.
It joins rooms that look separate. This is the one that surprises people. If your studio has a ducted system, the supply into your reception and the supply into your consultation room may be branches of the same air handler, and the return path may be shared. Two rooms with a wall and a shut door between them are then in olfactory contact through the ceiling, which explains a great many mysteries - fragrance in a room you never scented, a makeup room's hairspray turning up in reception, a register you removed months ago still faintly present. On a plan they are separate volumes. Through the ducts they are not.
It changes the reading. A cold room and a warm room do not present the same fragrance the same way, and a studio that felt exactly right in February can feel thin in May at an identical setting, or heavy in a small cooled room with the doors shut. That is not the machine drifting; it is the room changing around a constant. It is also the reason to expect two considered adjustments a year rather than a nudge every time somebody has an opinion, and to make those adjustments on the word of a person who has just walked in from outside rather than on your own nose, which stopped being reliable within minutes of your arrival this morning.
None of this changes the order of operations. Fragrance adds scent and does not remove odour, so if the AC is delivering a smell of its own - a damp filter, a drain, dust from a system that has not been serviced - that is a source problem and a maintenance job, and no register at any price will cover it. Source, then ventilation, then cleaning, then fragrance. A portion of every SOSA order supports girl-child education through Nanhi Kali.
The practical starting point costs nothing: find out what you have. Ask whoever maintains the system three questions. Is it split units or ducted? If ducted, which rooms are on the same air handler? And does it bring in fresh air, or is it recirculating? Those three answers will explain most of what your studio has been doing, and most owners have never asked them because the system was installed by a landlord or a previous tenant.
The second free move is to align the hours. The Vaayu at ₹11,999 has a Bluetooth app and a timer, and the sensible schedule is the one that matches your air conditioning and your opening hours rather than running through the night into a building nobody is in. A machine running at three in the morning in a cooled, sealed, empty studio is producing exactly the wrong thing at exactly the wrong time: a room that reads strong to the first person through the door at nine and normal to nobody.
And the third: when the season turns, check the level with a fresh nose rather than with the dial. Two deliberate adjustments a year is a well-run studio. Two adjustments a week is a studio being run by an adapted nose in reaction to individual bad afternoons.
One more free move that studios almost never make: get the system serviced and the grilles cleaned before you conclude anything about fragrance. A neglected air conditioning system has a smell of its own - a damp drain pan, a filter that has not been changed, dust baked onto a coil - and it is delivered to every room the system serves, continuously, at a level no diffuser can be set against. Fragrance adds scent and does not remove odour, so a register laid over a system smell simply produces a third smell in every room at once. Source, then ventilation, then cleaning, then fragrance - and in an air-conditioned building the system itself is frequently the source.
The three mechanisms by which air conditioning changes what a studio smells like
Air conditioning in an Indian photography studio is rarely one system. It is usually a history: a couple of split units the landlord installed, a ducted run somebody added when they built out the client side, an exhaust fan in the loo, an extract over the makeup station if you are lucky, and a shooting floor that is either brutally cooled or not cooled at all depending on what the lighting does to the room. Understanding what you actually have is most of the work, and it is free.
Three mechanisms then follow, and they act independently. Air change decides how long anything survives in a room. Local airstreams decide where it goes while it is there. Duct topology decides which rooms are secretly one room. A studio can be fine on two of the three and completely baffling on the fourth, which is why "my diffuser stopped working" is so often a building question rather than a product question.
It is worth doing the volume arithmetic while you think about this, because it grounds the rest. Floor area multiplied by ceiling height gives cubic feet; cubic feet divided by 35.3 gives cubic metres. A 350 sq ft reception at 11 ft is 350 x 11 = 3,850 cu ft, about 109 m3. A 500 sq ft lounge at 12 ft is 6,000 cu ft, about 170 m3. A 900 sq ft studio floor at 15 ft is 13,500 cu ft, about 382 m3. Those numbers tell you what one machine has to fill. What the air conditioning tells you is how often it has to fill it again, and that second number is the one nobody calculates.
One more framing before the detail. Air conditioning is not the enemy of a scented studio and this page is not going to treat it as one. A cooled, well-ventilated studio is a better studio: clients are comfortable, crews last longer, gear is happier, and the room does not develop the stale, warm, closed-up character that no fragrance can rescue. The air conditioning is doing a more important job than the diffuser is, and when the two conflict, the air conditioning wins on merit. Everything below is about arranging fragrance around a system you should not be touching.
This is why two studios that look identical can behave completely differently. It is also why a studio can feel perfectly scented on a mild day with the system idling and thin on a hot day with everything running flat out. Nothing about the machine changed. The clock sped up.
Now the important part, and it is the reason this page exists in the form it does. The correct response to a high air change rate is never to reduce it. Not by closing a supply vent. Not by taping over a return. Not by turning off the fresh-air damper, shutting down the extract over the makeup station, or running the system on a lower fan speed in order to make a bottle last longer. A studio's ventilation exists for the people in it, and in this vertical those people include a crew working eight to ten hours under lights, clients sitting for hours in a consultation room, and a makeup area producing genuinely strong volatiles all morning. Air exchange is not a budget you get to spend on fragrance. A well-ventilated studio is harder to scent, that is simply true, and the answer is placement, sizing and a sensible setting.
What you can legitimately do is match the fragrance to the clock. First, size to the connected volume honestly rather than optimistically: a Sukoon at ₹1,899 in a 170 m3 lounge with strong ventilation is working near the top of its range, and a Vaayu at ₹11,999 - rated for approximately 1000 m3 of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly - is working comfortably in the middle of its. A machine working comfortably holds a level far better than one working flat out. Second, run continuously through opening hours rather than in bursts, because a steady low output against a steady removal rate produces a stable room, whereas bursts produce peaks and troughs that a client notices as fragrance rather than as atmosphere. Third, place well, which is the next mechanism.
And a note on what air change does for you, because it is not all cost. High air change is why a studio with good ventilation almost never has a lingering odour problem, and lingering odour is a far more expensive problem than a fragrance that needs a slightly higher setting. Fragrance adds scent and does not remove odour, so a building that removes its own odours is doing the part no machine can do. Take the trade.
That has three consequences for a diffuser. First, if your machine sits inside the outgoing jet, its output is captured and delivered along the jet's path rather than dispersed into the room. In a studio reception that path is usually along the ceiling to the far wall and then down, or straight out through the top of an open doorway into the corridor. The symptom is a reception that reads of very little and a corridor that smells faintly of your register, and the owner's conclusion is invariably that the machine is too small. Second, if your machine sits under or beside the unit's intake, its output is drawn into the unit and redistributed - not destroyed, just relocated in a way you did not design. Third, and more usefully, the jet is also the room's mixing mechanism: a machine placed a few metres outside the jet, in the broad lazy circulation it creates, gets distributed around the whole occupied zone for free.
Finding the jet takes a strip of tissue and thirty seconds. Hold it up in front of the unit, then walk slowly away until it stops moving hard. That distance, in that direction, is the zone to stay out of. Then walk the rest of the room with the same tissue and find where the air is moving gently but is definitely moving - that is where the machine goes. If the only socket in the room is inside the jet, either get a socket added or accept a compromise and choose a forgiving register such as Quiet Luxury rather than something plush.
Height interacts with this. Split units are mounted high, and their jets run high. A wall-mounted machine at head height in a room with a high split unit may be sitting neatly under the jet, in the gentle return flow, which is often the best position in the room. A machine on a low console directly below the unit is usually fine too. The bad positions are directly in front at louvre height and directly beneath the intake.
One more split-unit behaviour worth knowing: they cycle. When the room hits temperature the compressor stops, the fan may drop or stop, and the room goes still. Then it starts again. So a room cooled by splits is not in a steady state - it alternates between stirred and still all day, and a fragrance level that reads correctly during a stirred phase can read differently during a still one. This is another argument for a steady low continuous output rather than a strong intermittent one, and another argument for judging your level at the door on arrival rather than from the middle of the room at four in the afternoon.
Finally, splits and doors together. Because a split unit does not exchange air with outside, a room cooled by splits with the door shut is a genuinely closed volume, and that is good news for scenting: what you put in stays in. The moment the door opens, that closed volume connects to whatever is beyond it and the split's jet becomes a very efficient exporter. In a studio where doors are opening constantly, expect the level in a split-cooled room to be less stable than the arithmetic suggests, and set it for the door-open case rather than the door-shut one.
This explains an entire category of studio mystery. Fragrance in a room you never put a machine in. The makeup station's hairspray showing up faintly at the front desk. A register you stopped running six weeks ago still present in one room. An unscented newborn or maternity room that is not quite as unscented as you intended. That last one matters more than the others, and it is the reason to check duct topology before you promise a client an unscented room: if the room you are keeping fragrance-free shares an air handler with the room you are scenting, a shut door is not the boundary you think it is, and you may need to look at which supply that room is on rather than at which door is closed.
Ducted systems also change what you should buy. If you are genuinely trying to scent a large, ducted, connected floor, then fighting the ducts with a freestanding machine is the wrong approach and the designed answer is to use them: the Vaayu at ₹11,999 will HVAC mount as well as stand freestanding or mount on a wall, and above that the ducted machines exist for exactly this - 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. What you must not do is duct-mount and then be surprised that every room on that handler is now scented, including the ones you wanted left alone. Ducted scenting is a whole-system decision, and it is a good one only when the whole system is rooms you actually want scented.
Then the fourth effect, which is not airflow at all: cooling changes the reading. A room at a comfortable cooled temperature presents a fragrance differently from the same room warm, and a studio can therefore feel thin in one season and heavy in another with no change to the machine whatsoever. Cooled air is also drier air, and a studio in Mumbai in August with the AC working hard is a very different room from the same studio in December with the doors open. This is the mechanism behind most of the "it has faded" reports I get in May and most of the "it is too much now" reports I get in January.
The management of that is simple and unexciting. Expect two deliberate level reviews a year, at the turn of the seasons. Make them on the evidence of somebody who has just walked in from outside, not on your own nose. Change one notch, then leave it for a fortnight before changing anything again. And write the setting down, so that "what are we running" has an answer rather than an opinion - a studio signature is built by consistency, and consistency does not survive a dial that four people are authorised to nudge.
And, once more, the boundary of all of this: whatever the system is doing, you do not fix a fragrance problem by giving the building less air. Service the filters, fix the damp drain, clean the grilles, get the ducts looked at if the system itself smells - and then set your fragrance to the building you actually have.
- Ask whether the system recirculates or brings in fresh air, and how much.
- Trace the split unit's jet with a tissue, then place the machine out of it.
- Run the machine on the same hours as the air conditioning, not longer.
- Recheck the level when the season changes, and never close a vent to help it.
Register and level in a cooled room, and how the seasons move both
Air conditioning changes the level far more than it changes the register, but it does shift the register question at the margins, and it is worth knowing how.
A cooled, dry, strongly ventilated room tends to favour registers with some woody or resinous weight to them, because the lighter and more volatile parts of any composition are the parts a fast air change carries away first. That is not a claim that one register lasts longer than another - SOSA does not publish comparative throw or longevity figures for the seven and no honest page would invent them - it is a general observation about how a room with a high replacement rate presents a composition. A warm, still, less-ventilated room does the opposite: it holds more of everything and rewards a lighter register run very low.
All seven registers below are the water-based Hotel Collection, each SOSA's own hotel-inspired interpretation - SOSA is independent and is not affiliated with, endorsed by or connected to any hotel brand.
Quiet Luxury is white tea, bergamot and cedar, hushed and polished lobby calm. The cedar gives it enough structure to keep its shape in a cooled, ventilated reception, and the white tea keeps it from ever reading as heavy. It is the safest choice in an air-conditioned studio for the same reason it is the safest choice generally: it is forgiving of a position and a setting that are not quite perfect.
Forest Suite is cedarwood, vetiver and green leaves, grounding and biophilic green, and it is the register I would reach for in a big, cool, hard-surfaced, well-ventilated space - a converted industrial reception, a concrete lounge, a studio with a lot of glass and a lot of air handling. It reads as structural rather than decorative, which is what a cool room wants.
White Tea Serenity is white tea, aloe and cedar, clean and weightless and spa-like. In a cooled pale room it is beautiful and it is also the easiest of the seven to lose entirely if your air change is high and your machine is small. If you choose it in a strongly ventilated studio, size the machine properly rather than compensating with the dial.
Tea Garden is jasmine, green tea and white tea, serene tea-and-jasmine calm, and it belongs in a bridal consultation room - which, being a smaller closed room usually cooled by a single split, is often the most stable volume in the whole building. Run it lower there than anywhere else regardless, because it is a three-to-six-hour room and the bride is frequently wearing her own fragrance.
Warm Welcome is citrus, floral and sandalwood, warm and gracious, and the sandalwood is what lets it hold its shape at a threshold where the door is opening all day and cooled air is spilling out of it.
Old-World Glamour is amber, violet and woods, plush and evening-elegant, and it is the one to be most careful with in a small cooled room with the door shut. A closed, cooled volume holds what you put in it, and plush in a held volume becomes heavy fast. Low setting, dark room, short dwell.
Lobby Bar is citrus, pepper and amber, bold and playful and after-dark, and in this vertical its home is an event space - typically a large cooled volume full of people, which is the one situation where a bolder register is not automatically too much.
Those seven run in the SOSA ultrasonics, which are water-based cool-mist machines that put moisture into the air. That is worth a thought in a heavily air-conditioned studio, because air conditioning dries a room and an ultrasonic adds a little moisture back; whether that is welcome is a matter for your own space. The Vaayu and the ducted machines run waterless nebulising oil with no water, no humidity and no wet residue at all, which is the property that makes the Vaayu the natural choice in a room with gear and wardrobe in it. Either way, ordinary studio prudence applies: keep any machine away from open equipment cases and the bench where lenses get changed, and do not point a mist machine at anything you care about. That is housekeeping and not a protection claim, and SOSA publishes none.
And the rooms that get nothing whatever the air conditioning is doing: the active shooting sets, the makeup and styling area, the equipment store, and a newborn photography room, which should be fragrance-free without hedging. Pregnant clients are commonly scent-sensitive and nausea is ordinary in pregnancy, which is a plain reason to keep maternity rooms unscented as well. That is not a health, safety or calming claim in either direction, and the client's own preference overrides everything on this page. In a ducted building, keeping those rooms genuinely unscented is a duct question as much as a door question.
| Scent | Why it suits the mood |
|---|---|
| Split units, doors shut · the easiest case | A split does not exchange air with outside; it stirs one room hard along one axis. With the door shut you have a genuinely closed volume that holds what you put in it, which makes the level easy to set and easy to keep. Stay two or three metres out of the jet and out of the intake, and let the room's own circulation distribute the output for you. |
| Split units, doors open all day · the leaky case | The same jet becomes an efficient exporter the moment the door opens, pushing your output into a corridor. The level will be less stable than the arithmetic suggests. Set it for the door-open case rather than the door-shut one, and place the machine deep in the room rather than near the opening. |
| Ducted, high fresh-air fraction · the hard case | The healthiest building and the hardest to scent, because the room's air is being replaced steadily and everything you add goes with it. Size honestly rather than optimistically, run steadily through opening hours, and never reduce the fresh air. A machine working comfortably in the middle of its range holds a level far better than one working flat out. |
| Ducted, shared air handler · the confusing case | Rooms that look separate on the plan are sharing air through the ceiling, so fragrance appears where you never put it and a shut door is not the boundary you assumed. Before promising a client an unscented room, find out which handler it is on. If the whole system serves rooms you want scented, HVAC mounting or a ducted machine is the designed answer rather than a workaround. |
The buying answer changes with the air conditioning more than with almost anything else, so be honest about the building first.
For a small closed room cooled by one split - a consultation room, a compact reception - an ultrasonic is genuinely enough: the SOSA Boond at ₹899 or the SOSA Sukoon at ₹1,899, running the water-based Hotel Collection from ₹299 with 100ml refills at ₹999. Closed, split-cooled rooms are the easiest volumes in any studio to hold a level in. If the room runs all day and you do not want to refill it at lunchtime, the SOSA Megh at ₹3,499 has a 6 litre tank.
For a connected, cooled client route, the SOSA Vaayu at ₹11,999 is the commercial machine and it has two properties that matter specifically here. It is waterless cold-air nebulising of undiluted oil, so no water, no humidity and no wet residue in a building that is already being dried by its air conditioning. And it will HVAC mount as well as stand freestanding, lay flat or mount on a wall, so if your system is ducted you can work with it rather than against it. Approximately 1000 m3 of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. A 400ml tank, DC 12V / 1A at 5W and mains powered so it needs a live socket, and CE, RoHS and SGS. The Bluetooth app and timer are what let you match the machine's hours to the air conditioning's hours instead of scenting a cooled empty building all night.
For a genuinely large ducted floor where every room on the system is one you want scented, the ducted machines are the designed answer: 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. Two systems, and they are not interchangeable - the ultrasonics are water-based and the Vaayu and the ducted machines run waterless nebulising oil, so the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine. And where a room has no socket, or where you want something that no air conditioning schedule can get wrong, the SOSA reed diffusers from ₹749 have no plug, no noise and nothing to switch off, lasting about 6 to 10 weeks, with 130ml from ₹1,249 and refills at ₹2,399 for 300ml and ₹3,499 for 500ml.
If you now want the exact position relative to the grilles you have just identified, read where to place a scent machine in a photography studio. If your reception is scented and your main floor is not, and you suspect the AC is the reason, the diagnostic is why you can smell fragrance in reception but not in the main studio. And if your building is a set of separate cooled rooms rather than one connected floor, read how to scent a photography studio with multiple closed rooms.
What SOSA does not publish, and what this page will not invent: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order or lead time. All of those move with run hours, connected volume and setting, and in an air-conditioned studio they move with the season too. Send your floor plan, your ceiling heights and a note of what the air conditioning is - splits or ducted, and which rooms share a handler - to SOSA on 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.
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.