I will not tell you that a scent makes a buyer remember your project, prefer your project, or choose your project over the three others they saw that weekend. That claim is not supported, I do not have the evidence for it, and no supplier who offers it to you has the evidence either. It is a claim about a purchase decision involving a sum of money that will shape a household for fifteen years, and it is being attached to an ambient property of a room. The gap between those two things is enormous and nobody has bridged it.
Here is the defensible version, stated precisely, because precision is the point of this page. Ambient scent research supports stronger recall of a space, at moderate effect sizes. Read that clause slowly. Recall of a space. A room being recognised as the room it is. Not a project being preferred, not a brand being remembered, not a shortlist being reordered, not a booking. The same body of work supports improved evaluations of a space and its service and longer dwell, also at moderate effect sizes, and that is the whole of the ceiling. Everything above it is marketing, including some marketing produced by my own industry.
And then the honest answer to what you are really asking, which is: what does a buyer actually carry away after seeing four developments between Saturday morning and Sunday evening? The numbers. The location. The floor plan. And how they were treated. In roughly that order, and with enormous distance between those four and anything else. They will remember the per-square-foot figure and the payment schedule because they wrote them down. They will remember the road in and how long the drive took, because they did it. They will remember the plan they could actually read and the one they could not. And they will remember the name of the person who took an hour with them and the name of the one who did not follow up on Monday.
The room's contribution to that is one thing and one thing only: not being the thing that jars. That is a real contribution and it is worth having. It is also very much smaller than "a signature scent makes them remember you", and if the difference between those two sentences is what the purchase was being justified on, then the justification was wrong and the purchase might still be fine.
The standing limits. Fragrance adds a smell; it has never removed one, and no SOSA product treats, filters, dries, dehumidifies or purifies air - not the Vaayu at ₹11,999, not an ₹899 Boond, not a ₹749 reed. No claim is made here about what a fragrance does to a person, and none about bookings, site visits, enquiries or a buyer's decision.
So is there any point scenting a sales gallery at all? Yes, a modest one, and it is a different point from the one in the question. Across a single buyer's own repeat visits - and premium residential buyers come back three, four or five times over weeks, often with a different family member each time - a room held at one steady character is recognisably the same room every time. That is what the recall finding actually supports and it is worth having. It is also worth being clear about what it is not: it is not differentiation against a competitor, because your buyer is not holding your air next to somebody else's air in their head. They are holding your price next to somebody else's price.
What actually distinguishes one gallery visit from another in a buyer's memory? The things they can write down and the things that cost them time. The rate, the payment schedule, what is and is not included, the possession position. The location and the drive. The floor plan - specifically whether they could read it, whether the sample flat matched what the plan promised, and whether anybody explained the difference between what they were standing in and what they would actually get. And the person: whether somebody gave them an hour, answered a hard question without deflecting, and called on Monday. The air is not on that list, and a gallery that is too hot, too loud, badly lit or short of somewhere to sit while three people argue is losing far more of the visit than any register recovers.
Start with the observation itself. Buyers mention a competitor's fragrance. That is not evidence that the fragrance is working. In my reading it is close to the opposite: a scent that gets mentioned is a scent that has been noticed as a product, and the whole of the recall finding is about a space being recognised, not about a room's air becoming a topic. When somebody walks out of a gallery and says "that place smelled strongly of something", the thing they have retained is that a decision was made about the air, and that is a comment on the operator rather than a memory of the development. I would not want it said about a gallery I had specified.
Now the second half, which is the more expensive mistake. "Something stronger so they remember us" is an arms race with no finish line and a guaranteed loser, and the loser is your own sales team. If your reference point is what a competitor did, and their reference point next quarter is what you did, the level in every gallery in the city climbs until the rooms are genuinely unpleasant to work in. The people who pay for that are the executives standing in it for eight to ten hours a day, six or seven days a week, across the whole sales period. A buyer is in that air for forty minutes. Your staff are in it for two thousand hours, and they cannot report it to you accurately, because by the second hour of any shift adaptation has made the room read as neutral to everybody in it.
Here is the version of the argument I will defend. Ambient scent research supports stronger recall of a space, improved evaluations of a space and its service, and longer dwell, at moderate effect sizes. I keep repeating "moderate effect sizes" because it is the load-bearing phrase and it is the one that gets dropped in every brochure. Moderate means real and modest. It does not mean decisive, and it certainly does not scale up to a purchase of the size we are discussing. The right use of that finding in a sales gallery is within one buyer's own sequence of visits rather than across competing developments: your buyer comes back with a spouse, then with a parent, then on the day the numbers get serious. A room that is the same on all of those visits is doing the job. A room competing for a slot in a weekend's worth of impressions is not a job the air can do.
And then the honest answer about the weekend, which is the useful part of this page. Think about what a serious buyer is physically doing on a Saturday when they see four developments. They are driving between sites, often in a hot dry May or a foggy December morning, with family in the car, having an argument about budget. They are being handed a folder at each gallery. They are taking photographs of floor plans on a phone. They are trying to work out whether the sample flat they just walked through is the unit type they would actually be buying, which is the single question most galleries answer worst. And at the end of it they are sitting at home with four folders on a table, comparing four rates.
Nothing about that sequence is decided by the air, and a great deal of it is decided by things a developer controls and often neglects. Whether the plan is legible. Whether somebody explained the difference between the sample flat and the unit on offer, unprompted. Whether there was somewhere for three people to sit and talk privately without an executive hovering. Whether the folder contains what was promised. Whether anybody called on Monday. If I were spending money on making a gallery memorable, I would spend it on all of those before I spent it on a machine, and I sell the machine. A portion of every SOSA order supports girl-child education through Nanhi Kali.
If you do one thing this week, do this instead of buying anything. Take the last twenty buyers who visited and did not proceed, and find out what they actually compared. Not what you think they compared. In almost every case the list will be rate, payment terms, location and possession, with a strong secondary layer of whether they trusted the person in front of them. Somewhere well below all of that sits everything the gallery does as a room, and the air sits at the bottom of that.
That exercise is not an argument for doing nothing about the room. It is an argument for knowing what the room is for. The room's job in a comparison is not to win it. It is to avoid losing points. Rooms lose points by being uncomfortable, by being hard to talk in, by having nowhere private to sit while a family disagrees, by being too hot in a May afternoon at nearly 40 degrees C or by being unheatable on a January morning that only reaches about 21, and by smelling of something. That last one includes smelling of a fragrance somebody set too high, and it very definitely includes smelling of a fit-out that has not finished off-gassing.
Now a word about a specific temptation in this block, because developers ask it in a slightly different form each time and the answer is always the same. Can we make the scent part of the brand, so buyers associate it with us across projects? You can run one register across every gallery you operate, and I would recommend it, but not for that reason. The reason is internal: one register with written levels per site is a specification you can hand to the next gallery team, which means the fifth gallery is set up as carefully as the first. The claim that a buyer builds a cross-project association with your developer brand through air is not one I will make, and it fails the same test as the weekend question.
And the standing arrangement in any staffed gallery, written into the operating notes rather than remembered. Anyone on the floor can switch a named unit off without asking a manager, and a reported reaction is a recalibration signal rather than a tolerance problem. Staff are the most exposed people in the building and the least reliable judges of the level. No health or allergy claim is made here in either direction.
What a buyer actually carries out of a weekend of site visits, in order
Three things decide what survives a weekend of viewings, and none of them is ambient. The first is what the buyer wrote down, because written information outlives everything sensory by a wide margin. The second is what cost them effort, because a forty-minute drive is remembered in a way a forty-minute room is not. The third is who they dealt with, which is the only part of the visit with a name attached to it.
Do one piece of arithmetic anyway, because it shows where the air can and cannot reach. A gallery of 2,000 sq ft at a 12 ft ceiling is 24,000 cubic feet, which divided by 35.3 is about 680 cubic metres. A SOSA Vaayu at ₹11,999 is published for approximately 1000 cubic metres of connected air. So one machine can hold that gallery comfortably at a low setting - the capability is not in question. What is in question is what the capability buys, and the answer is a room with a steady character, not a position in a shortlist.
Then the visit arithmetic, which is the part worth taking seriously. A buyer touring four developments in a weekend spends perhaps forty minutes in each gallery: call it two hours and forty minutes of total exposure to four different rooms, interleaved with three or four drives, four sets of collateral, four conversations and at least one family argument. Your gallery is competing for roughly a sixth of one weekend's attention against three other galleries and against everything the buyer brought with them. Against that, a moderate effect on recall of a space is not going to be the deciding variable, and any framing that implies it will is selling you something.
Now compare that with the pattern the recall finding genuinely fits. The same buyer, if they are serious, comes back to your gallery three, four or five times over the following weeks. Each visit is longer than the first. Each brings a different family member. By the fourth, they are in the small doored room reading a schedule. That is a sequence of returns to one room, which is exactly the shape of finding the research supports, and it is why the honest case for a register in a gallery is about consistency rather than competition.
One last variable, and it is genuinely local rather than decorative. A Lucknow buyer does a weekend of site visits in one of three quite different cities. In April and May the drive between developments happens in real heat - mean daily maxima of about 38.2 and 39.9 degrees C - and it is genuinely dry heat, with the year's humidity trough falling in those same months. In July and August it is wet, with roughly 238 and 242 mm of rain in the two heaviest. From late November to February it is cold and damp, January mean minima near 7.8 degrees C, days reaching only about 21.4, and fog common through December and January, so a Saturday morning tour may start late and in poor visibility. What that changes is the state a buyer arrives in, which is a much bigger variable in how your gallery is received than anything you put in the air.
The claim has three moving parts and only one of them is supported. Part one: a scented room is recalled somewhat better than an unscented one. That is the supported part, at moderate effect sizes, and it concerns the recall of a space. Part two: that improved recall of a space transfers to the development, the brand and the offer attached to it. Nobody has shown me that, and it is a substantial leap - a buyer remembering a room is not the same as a buyer remembering a rate. Part three: that the transferred recall then moves a decision about a very large sum of money made over weeks by several people with competing priorities. That is not a leap, it is a different argument altogether, and it has no support at all.
The structure of the purchase is the problem. An ambient effect measured in a short laboratory or retail exposure is being asked to carry weight in a decision that involves a spouse, a parent, a loan, a location, a possession timeline and a rate comparison across four sheets of paper on a kitchen table two days later. Everything about the decision is deliberative, documented and contested. Ambient properties of a room do not survive that process, and they are not meant to.
There is also a self-defeating quality to the differentiation framing that is worth naming. To be the project that a buyer remembers because of the smell, the smell has to be noticeable enough to be attributed. But a fragrance noticeable enough to be attributed has been received as a product decision rather than as a property of the room - and in a gallery where somebody is reading a payment schedule, being noticeable is not a neutral cost. The version that is defensible is quiet, and the version that is memorable is not defensible. Those are the same axis, pulling in opposite directions, which is a good sign that the original framing was wrong.
And the commercial point, since we are being blunt. If every premium gallery in a city runs a fragrance, the presence of a fragrance is a category convention rather than a differentiator, in the same way that air conditioning in a showroom differentiates nobody. What would differentiate you at that point is being the one gallery that is comfortable to spend ninety minutes in with two relatives and a folder, which is a seating, acoustics, lighting and privacy question.
So the refusal, in one line I am happy to have quoted: I will not tell you that a scent sells an apartment, and I would rather lose the order than tell you it does. What I will tell you is what the room can honestly do, which is the next card.
Ambient scent research supports stronger recall of a space, improved evaluations of a space and its service, and longer dwell, at moderate effect sizes. Every word in that is doing work. A space: a room, recognised as itself. Evaluations of a space and its service: how a room and the experience in it are rated, not what anybody does about it afterwards. Longer dwell: time in a room, which is not the same as engagement and is certainly not the same as intent. Moderate effect sizes: real and modest, not decisive.
The use case that fits that finding is the returning buyer, and it is a genuinely good fit. A premium residential purchase in this city is a multi-visit process spread over weeks. The same person walks into the same gallery several times, and each time the room either reads as the place they came to before or it does not. A register held at one written level makes it read as the same place. That is not a trick; it is a property of the building being stable, and stability is what recognition is made of.
The second use case is defensive, and I rate it higher than the first. A gallery is a new building full of new materials, and new materials have a character of their own for a while. A buyer on their second visit walking into a room that smells faintly of adhesive is receiving information about how finished the project is, and it is information you did not intend to send. Getting the source right - ventilation, time, the fit-out finishing its business - is what fixes that, and it fixes it properly. Fragrance does not fix it, because fragrance adds a smell and does not remove one, and no SOSA product treats, filters, dries, dehumidifies or purifies air or removes anything a fit-out gives off. The quiet register goes on afterwards, into a room that is already neutral.
And a use case I will not claim even though it looks adjacent. I will not say that a consistent register across your projects builds an association with your brand in a buyer's mind. One register across your galleries is the right operating decision, but the reason is internal: it is a specification you can hand to the team setting up the next gallery, which is how the fifth site gets configured as carefully as the first. That is a process argument, and process arguments are honest. Claims about what accumulates in a buyer's head across years and projects are not.
Keep the ceiling visible whenever somebody in a meeting starts extending it. No claim about bookings, site visits, enquiries, buyer decisions, pricing or any business result. And no claim about what a fragrance does to a person - nothing about mood, comfort, confidence or how anybody feels, in any phrasing.
The numbers, presented so they can be compared. A buyer leaves with four folders and compares them at a table. The developer whose sheet is legible, complete and matches what was said in the room has a structural advantage in that comparison that nothing sensory approaches. The one whose folder is missing the thing they asked about has a structural disadvantage that no register repairs.
The plan, and specifically whether the sample flat maps onto it. The commonest complaint I hear from people who have done a weekend of viewings is that they could not tell what they were actually being sold - which unit type the sample flat represented, what was standard and what was staged, what the balcony in the model corresponded to. A gallery that answers that unprompted is remembered as the clear one. That is a communication problem and it is free to fix.
The person, and the Monday call. Every buyer remembers who gave them an hour and who did not follow up. This is the highest-value variable in the entire visit and it is a staffing and management question.
Then the room, and here the framing is about not losing points rather than winning them. Somewhere to sit, privately, for three people having a real conversation. A temperature that works in a 39.9 degree C May and on a January day that only reaches about 21.4. Light you can read a plan under. Acoustics that let a family talk without an executive at their shoulder. A washroom that has been looked after. Those are the room's actual contributions, and every one of them outranks the air.
And last, the air, whose job is to not be the thing that jars. That phrase is the honest summary of this entire page. A gallery that smells of nothing in particular is a gallery that has removed a way of losing points. A gallery with a quiet register held steady is doing that, plus giving a returning buyer a room that reads the same on the fourth visit. A gallery with a register set high enough to be mentioned has bought itself a way of losing points that it did not previously have.
Two things that are never the answer. Never reduce ventilation, close a vent, shut an extract or keep a gallery door shut so a fragrance holds longer - not in a closed-up foggy January, not in a wet August, not ever. And never chase a busy weekend with output: a gallery with thirty people in it already has far more going on in the air than an empty one, and a level raised for a launch weekend is still raised on the quiet Wednesday in month seven.
- Make the numbers legible and make the folder match what was said in the room.
- Explain unprompted how the sample flat maps to the unit actually on offer.
- Give three people somewhere private to sit and argue, and call them on Monday.
- Then a quiet register, held steady, whose only job is to not be the thing that jars.
The defensible version, precisely stated - and what it is not
If, having read all of that, you still want a register in the gallery - and the case for one is real, it is just smaller than the question implied - then the choosing takes about five minutes and the setting takes months of discipline.
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. For a sales gallery, and particularly for one whose brief is explicitly do not be the thing that jars, the shortlist is three. Quiet Luxury is white tea, bergamot and cedar - hushed, polished and unsweet, and the one I would run given a single decision and nothing else known about the building. White Tea Serenity is white tea, aloe and cedar - clean, weightless and spa-like, and the one that most readily reads as clean rather than as scented, which is precisely the register you want in a room whose job is to be unremarkable. Forest Suite is cedarwood, vetiver and green leaves, the driest of the three, and the one most likely to be received as a property of the building rather than as a decision, which is the definition of not jarring.
The four I would keep out of a gallery, and why each fails this specific brief. Lobby Bar is citrus, pepper and amber, bold and after-dark: it is designed to be noticed, which is the opposite of the requirement. Old-World Glamour is amber, violet and woods, plush and evening-elegant, and plush is exactly the quality that accumulates over a ninety-minute family visit. Warm Welcome is citrus, floral and sandalwood and reads as a hotel threshold, which fights the argument that you are showing somebody a home. Tea Garden is jasmine, green tea and white tea and is the least risky floral in the collection, but a floral of any weight is more likely to be named by a visitor, and being named is the failure condition on this page.
I will not rank the seven against each other on measured throw or longevity. SOSA does not publish that comparison, and the variables that dominate all belong to your building rather than to the blend: connected volume, ceiling height, air exchange, how often the doors cycle, and the setting.
And there is no heritage, traditional, attar, oudh or rose-water register in the SOSA commercial range. The machines run the seven Hotel Collection registers and nothing else; the reeds are five scents of their own. Bespoke composition is a real SOSA service, discussed on WhatsApp rather than priced on a page - and it is worth saying plainly that a bespoke composition does not rescue the claim this page declined. A unique scent is not a more memorable scent in the sense that matters to a buyer comparing rates. One of the seven held at the same written level from launch to closeout already is a signature, because consistency makes a signature and uniqueness does not.
| Scent | Why it suits the mood |
|---|---|
| The numbers · first by a wide margin | The rate, the payment schedule, what is included, the possession position. These survive because they were written down and because they will be compared side by side on a table two days later. A folder that is legible, complete and consistent with what was said in the room is the single highest-value thing a gallery produces, and nothing sensory competes with it. |
| The location and the plan · second, and both are effort-based | The drive is remembered because they did it, in a 39.9 degree C May or a foggy December morning. The plan is remembered if it was legible and if somebody explained, unprompted, how the sample flat maps onto the unit actually on offer. The commonest failure in a gallery is leaving a buyer unsure what they were standing in. |
| How they were treated · third, and it has a name attached | Who gave them an hour, who answered a hard question without deflecting, who called on Monday. This is a staffing and management variable and it is the only part of the visit a buyer will describe using a person's name. It outranks every physical property of the room. |
| The room, including the air · last, and defensively | Somewhere private to sit, a workable temperature, light you can read a plan under, acoustics that let a family talk. The air's honest job here is to not be the thing that jars - which means neutral first, and then at most a quiet register held steady so a returning buyer meets the same room on the fourth visit. A level high enough to be mentioned has created a new way of losing points. |
So the buying answer, kept in proportion to a claim I have just spent a page narrowing. For one enclosed room - a reception, an office, a single doored space - an ultrasonic is usually the whole purchase: a SOSA Boond at ₹899 or a SOSA Sukoon at ₹1,899, both running the water-based Hotel Collection from ₹299, with 100ml refills at ₹999 and 300ml also available. The pack of seven 15ml bottles at ₹1,799 lets you audition registers in your own gallery air rather than from a description, judged on day five rather than the first afternoon.
For a connected gallery volume the commercial answer is the SOSA Vaayu at ₹11,999: waterless cold-air nebulising of undiluted oil, so no water, no humidity and no wet residue. Rated for approximately 1000 cubic metres of connected air, SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. Bluetooth app and timer, which is what lets a setting be written down and kept across a long sales period rather than drifting upward as everybody in the building adapts to it. 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so it needs a live socket, CE, RoHS and SGS. The ducted machines are 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. The two systems are not interchangeable and the ₹299 water-based bottle never goes into a Vaayu or an HVAC machine.
If you want no plug, no noise and nothing to switch off in a small doored room, the SOSA reed diffusers are their own registers rather than Hotel Collection ones - Mountain Breeze ₹849 is the driest, with Morning Freshness ₹749, Garden Bloom ₹799, Evening Calm ₹799 and Fresh Brew ₹849, 130ml from ₹1,249 and lasting about 6 to 10 weeks. A reed is passive and local and will not fill a gallery, which is sometimes the point.
To go deeper: the case for a register in a gallery at all, with the qualifications attached, is in whether a premium Lucknow developer should have a signature scent in its sales gallery. The room-by-room levels, which is where the real decisions are, are in whether the model, sample apartment and negotiation room should have different scent intensities. And before switching anything on in a new building, read whether new paint, laminate and adhesive odours should be ventilated out before fragrancing a sample flat.
What SOSA does not publish, and what this page will therefore not invent: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time. Send your gallery plan and ceiling heights to WhatsApp at +91 96192 18531 instead. Bulk orders are welcome, and custom label or logo on product is available.
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 boutique means the connected retail floor plus any viewing room that has a door of its own - 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
Most of what is written about commercial scenting assumes you are building something from nothing - a new brand, an empty room, a customer who has never met you. Almost none of it is written for the business I actually get asked about most often in a city like Lucknow: the one that has been there for thirty years, that people already trust, where the founder's son or daughter is now looking at the place and thinking it should feel more like what it is worth.
That business has a completely different problem, and it is worth naming plainly. You are not trying to create an impression. You are trying not to damage one. A customer who has come to you since before you were running the place has a version of your shop in their head, and it is a good version - that is why they keep coming. If they walk in one morning and the room announces that something has changed, you have spent a real asset to buy a compliment. So my advice to legacy businesses is almost embarrassingly conservative: go so low that nobody remarks on it. Not low as a compromise - low as the specification.
The rest is the same as it always is, and it is the least commercial thing I say. Fragrance adds a smell; it has never once removed one. So if the showroom smells of damp in August, or the lobby carries the kitchen, or the new fit-out is still off-gassing, a machine gives you both smells at once and most people find that worse than the original. Source, then ventilation, then cleaning, and only then a quiet character held at the same level every single day - because in a business built on being the same place it has always been, consistency is the entire product.
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 an air-treatment device, an air purifier, a dehumidifier, a humidity-control product or an odour-removal product, and none makes any health, allergy, air-quality or occupational claim. No claim is made here about any effect on a customer, a patient, a purchase, a footfall figure or a business result. Nothing in this guide is clinical, facilities, HVAC, food-safety or building advice: in a clinical space the treating clinician decides what may be in the air, in a food business the kitchen and the applicable food-safety rules decide, and in any building the people responsible for its air and its maintenance decide - and their decision overrides every recommendation here. Descriptions of Lucknow's seasons, localities and crafts are general and qualitative; every figure about a specific building must come from that building. Nothing here claims any association with, or endorsement by, any craft body, heritage authority or local institution. 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.