One register across the portfolio. Levels calibrated separately per gallery, and written down. That is the whole discipline, and the second half is where portfolios come apart. Galleries differ in volume, in ceiling height, in aperture - how much the entrance opens to outside and how often it cycles - and in air handling. Two identical machines running the same blend at the same numeric setting in two different galleries do not produce the same result, and nobody who has stood in both would say they do. So the thing you hold constant is not the number on the app. You match the perceived level, never the setting. The number is an output of the calibration, never an input to it, and it will usually be different at every site.
There is a wrinkle here that belongs to developers specifically and to nobody else in this bank, and it is the most interesting thing on the page. Sales galleries are temporary. A gallery is built for a project, it runs for the life of that project's selling period, and then it gets struck when the project sells out. The project itself becomes a building with residents in it and the gallery ceases to exist. Which means that across a decade of a developer's work, the galleries come and go, the architecture changes, the site changes, the team partly changes - and the register is one of the very few elements that persists while the buildings do not.
That is an argument, and it points in a direction people do not expect. If a thing is going to run across ten years and six projects and be met by the same brokers, the same repeat buyers and the same staff moving from gallery to gallery, it needs to be the kind of thing that wears well. Which means quiet and unsigned rather than characterful and distinctive. A register with a strong personality is a great choice for one launch and a poor choice for a decade, because the thing that makes it memorable on the first encounter is the thing that makes it tiring on the fortieth. Consistency is what makes a signature. Distinctiveness is not.
Two limits, stated up front. I will not tell you that a scent connects anything in a buyer's mind, or that it helps anybody remember one project rather than another, or that it sells, influences or shortens anything. No claim here about buyers, site visits, enquiries or decisions. The honest ceiling on ambient scent is improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes, and I am going to stay inside it. And fragrance adds scent - it does not remove, neutralise or purify anything, and no SOSA product treats, filters, dries or purifies air.
What makes a developer's case different from a retail chain's? Galleries are temporary. A sales gallery is built for a project, runs through its selling period and is struck when the project sells out - the building becomes somebody's home and the gallery ceases to exist. So across a decade the developer's galleries come and go while the register, if you hold it, persists. It is one of the very few elements that outlives the buildings it was installed in. That is a reason to choose something that wears well over ten years rather than something that makes an impression at one launch, and quiet wears better than characterful. It is also a reason to write the specification down, because the people who set the first gallery will not all be there for the fourth.
Should a flagship project get its own scent? I would say no, and the reasoning is the same as for any brand that operates in more than one place. The moment you have two registers you have a doorway problem wherever they meet, a training problem wherever staff move between sites, and a specification that needs re-deciding at every launch. If a flagship genuinely needs to feel different, differentiate it with the things that are meant to differentiate a flagship - scale, materials, the model, the light, how people are received - and hold the register constant underneath. Differentiate by level and by everything else. Do not differentiate by blend.
Why the register is the right thing to standardise. A register held at the same perceived level, in every gallery, over years, becomes a small and consistent part of how your rooms are recognised - and recognition is the only honest thing ambient scent contributes to a portfolio. It is not memorable in the sense of being distinctive; it is recognisable in the sense of being the same. Those are different properties and they are often confused. A distinctive register is one people can describe. A recognisable one is one people stop describing because it has become a property of your rooms rather than an event in them. For a portfolio you want the second, and you buy it with time and repetition rather than with intensity.
Why the number cannot travel, in concrete terms. Gallery A is 1,200 sq ft at a 12 ft ceiling: 14,400 cubic feet, about 408 cubic metres. Gallery B is 2,000 sq ft at 12 ft: 24,000 cubic feet, about 680 cubic metres. Gallery C has a double-height entrance of 800 sq ft at 20 ft, which is 16,000 cubic feet, about 453 cubic metres before you have counted the rest of the floor, and is a volume people cross rather than occupy - they are only ever in the bottom six feet of it. Gallery D is 3,000 sq ft at 12 ft: 36,000 cubic feet, about 1,020 cubic metres, which is the first one that actually reaches the Vaayu's published approximately 1000 cubic metres of connected air. Those four rooms will never behave the same way on the same setting, and that is before you account for how often the front door cycles, how hard the air conditioning runs, how much soft furnishing is in the room, and whether the negotiation room's door is genuinely shut.
So the method is what you standardise, not the value. At every gallery: wait until the fit-out has stopped announcing itself and the morning test passes - come in first thing, before staff, before the air conditioning has run, and if paint, adhesive, laminate or new carpet is what you meet at the door, ventilate more and come back another morning. Then bring in somebody who has been outside for at least ten minutes and does not work for the company. Ask what they notice, as an open question, never "can you smell the fragrance?". If they can name what the room smells of, it is too high. Adjust down, repeat, and when it is right, write it on a card that stays in that gallery: unit, room, register, exact setting, hours. The card is not bureaucracy. It is the only defence against drift, and drift is the real failure mode of every multi-site installation I have ever been asked about - week three somebody thinks it seems weak and turns it up, in complete good faith, because they have adapted to it.
The Lucknow layer, which makes the card longer rather than the register different. This city gives a gallery more seasonal range than almost anywhere I write about. April and May are hot and genuinely dry, mean daily maxima near 38.2 and 39.9 degrees C, with the year's humidity trough falling in exactly those hottest months. July and August are wet, roughly 238 and 242 mm. And from late November to February it is cold and damp - January minima near 7.8 degrees C, January days reaching only about 21.4, a record low of minus 1.0, and fog common through December and January. Two damp stretches, not one. So each gallery's card carries three settings and one register, and the register never changes. Changing the register seasonally destroys the only thing it was buying.
And the temporary-gallery point, which is the strategic one. Your galleries will be struck. The project sells out, the gallery comes down, the next one goes up somewhere else, possibly in a quite different kind of building - Gomti Nagar is a planned township that the Lucknow Development Authority took up in the 1980s and that was occupied from 1995 onwards, and a gallery there sits in newer, planned stock, while a gallery taken in the older street grain of the city centre sits in fabric of a completely different age and shape. The drawings tell you what that means for placement; the locality does not. What survives all of it is the register and the discipline around it. That is an argument for choosing something quiet and unsigned that will still be tolerable in your fourth gallery and your ninth year - and there is a local precedent for it standing in the street, because when Hazratganj was modernised around its bicentenary the move was a coordinated facade and signage scheme: uniform cream and pink paint, uniform signage, stone pavements. A whole district unified by becoming quieter and more uniform, not louder. A portion of every SOSA order supports girl-child education through Nanhi Kali.
If you do one thing this week, make the card. One side of A4 per gallery, in the gallery, not on a shared drive nobody opens. Unit and where it is. Room. Register. Exact setting. Hours. Date it was calibrated and who calibrated it. The list of rooms that get nothing. The line that says anyone on the team may switch it off. And a line for the next review date. That single sheet does more for a multi-site installation than any amount of central specification, because the problem is never the specification - it is that three weeks later somebody on site adjusted something in good faith and nobody wrote it down.
Second thing, and it is the one portfolios most often skip: calibrate the new gallery against a person, not against the old gallery. The instinct when you open gallery number four is to go and stand in gallery number two, note the setting, and copy it. That produces four galleries that are numerically identical and perceptually all over the place. The comparison you want is not between settings, it is between what a visitor experiences at each site. If you want the two to feel the same, the two settings will almost certainly be different.
Third, a note about staff who move between galleries, because developers move people around more than most businesses do. A salesperson who has spent six months in gallery two and is transferred to gallery four arrives with an adapted nose and a strong opinion about how gallery four should smell. That opinion is not a reading, it is a memory, and it is the single commonest source of unauthorised upward adjustment in a portfolio. The card is the answer again: the setting is not a matter of opinion once it has been calibrated and written down, and a change to it needs a reason and a date.
And the standing arrangement, which is the same at every site and should be printed on every card. Anyone on the sales team can switch a named unit off without asking a manager. Sales staff are in that air eight to ten hours a day, many times the exposure of any visitor, which makes them the most exposed people in the gallery and, through ordinary adaptation, the least reliable judges of the level. A reported reaction is a recalibration signal, not a tolerance problem, and no health or allergy claim is made here in either direction.
One register, separately calibrated levels, written down per gallery - and why the number never travels
Three things decide whether a portfolio register works: what you standardise, how each site gets calibrated, and what you write down. Notice that none of those is which blend you choose. The blend is a paragraph. The discipline is the product.
Do the arithmetic across your own sites, because it is the fastest way to see why the number cannot travel. A gallery at 1,200 sq ft and a 12 ft ceiling is 14,400 cubic feet, about 408 cubic metres. One at 2,000 sq ft and 12 ft is 24,000 cubic feet, about 680. One at 3,000 sq ft and 12 ft is 36,000 cubic feet, about 1,020. A double-height entrance at 800 sq ft and 20 ft is 16,000 cubic feet, about 453 on its own; at 1,500 sq ft and 20 ft it is 30,000 cubic feet, about 850. And a negotiation room at 180 sq ft and 10 ft is 1,800 cubic feet, about 51. Against the SOSA Vaayu at ₹11,999 and its published approximately 1000 cubic metres of connected air, most of your galleries sit at a third to two-thirds of one machine, and one or two may need volumes handled separately.
Which is the recurring finding again, and it matters more in a portfolio than anywhere else: the machine is not the constraint, the setting is - and in a portfolio the setting is not one decision, it is one decision per site, made the same way each time.
Keep connected in front of you at every site, because it varies. A coverage rating assumes one connected body of air and scent does not travel through a closed door. Gallery two may be one open floor. Gallery four may be a floor plus a doored negotiation room plus a sample apartment behind its own entrance, which is three volumes and a different conversation. That difference is not a detail to be smoothed over by a central standard; it is the actual shape of the job at that site.
And be honest about aperture, which is the variable nobody lists. A gallery whose entrance is a wide opening onto a site road, cycling all day, loses the first stretch of the room to outdoor air. A gallery behind a proper closing lobby holds its air much better and needs a lower setting for the same perceived result. Two galleries of identical floor area can be at opposite ends of that spectrum, and no central number can bridge it. The correct response is placement and a lower setting - never sealing anything up, and never reducing ventilation so a fragrance lasts longer.
The register. One blend across every gallery, every sample apartment and every lounge in the portfolio. Not one per project, not a special one for the flagship, not a seasonal variant. The reason is not aesthetic consistency for its own sake; it is that people move between your sites - brokers, repeat buyers, staff on transfer, your own directors - and a second register creates a collision every time two spaces meet or two experiences are compared. A visitor cannot tell you that two blends are inconsistent. They can only tell you something felt slightly off, which is a much harder problem to diagnose and a much easier one to avoid.
The exclusion list, and I would put it at the top of the document rather than the bottom. The rooms that get nothing, everywhere, without a site-by-site debate: the kitchen or pantry, always. Stores and back-of-house. Anywhere material samples, fabric boards or finishes are handled closely, because a buyer should not carry your gallery home on a swatch. The negotiation or closing room - a small enclosed volume at about 51 cubic metres for 180 sq ft and a 10 ft ceiling, holding a few people through the longest conversation in the building - takes the least of anything or nothing at all. Sample apartment bedrooms and bathrooms. And any gallery whose fit-out has not yet stopped announcing itself, which is a timing exclusion rather than a permanent one.
The method. Standardise how a level is arrived at, since you cannot standardise the level itself. Wait for the morning test to pass at that site. Bring in somebody who has been outside for at least ten minutes and does not work for the company. Ask an open question - what do you notice - never one that names fragrance. If they can name what the room smells of, take it down and repeat. When it is right, write it down that day. That is four sentences and it is the most portable part of the whole specification.
And the switch-off arrangement, identical at every site. Anyone on the sales team can switch a named unit off without asking a manager. Print it on the card. Sales staff spend eight to ten hours a day in that air, which is many times any visitor's exposure, and a reported reaction is a recalibration signal rather than a tolerance problem. No health or allergy claim is made here in either direction.
What is not on the standardise list, and should never creep onto it. The setting number. Machine count. Placement. Run hours, beyond a general rule of gallery hours only. Those are site decisions, and a central document that fixes them is a document that will be quietly ignored within a year, which is worse than not having written them.
The principle, stated as plainly as I can. Two units on the same numeric setting in two different rooms do not produce the same experience, because a setting is an output rate and an experience is a concentration in a particular volume of air that is being exchanged at a particular rate. Volume differs. Ceiling height differs, and ceiling height matters more than people expect because the part of the room a person occupies is the bottom six feet of it. Aperture differs - a wide opening onto a site road cycling all day behaves nothing like a closing lobby. Air handling differs in how hard it runs and where the grilles are. Soft furnishing differs, and a gallery full of upholstery and carpet behaves differently from one of stone and glass. So what you match is what a person walking in from outside perceives, and the number is whatever it takes to get there.
How to actually do it at a new gallery. Do not start by reading the setting off an existing site. Start at the bottom of the range and work up. Bring in a stranger to the project, ask the open question, and stop at the first setting where the room has a character and they cannot name it. If you approach from above - starting high and coming down - you will stop too high, because by then you have adapted to the room yourself and so has everybody helping you.
The seasonal version at each site. Once you have the base setting, note it and plan to revisit in the other two stretches of the Lucknow year, because the same gallery genuinely is a different room in a 39.9 degrees C dry May with the air conditioning running hard, in a wet August, and in a January whose days reach only about 21.4 degrees C with the building closed up much more of the time and fog common through December and January. Three settings on the card, one register, and never a change of blend. And in none of those seasons do you reduce ventilation or close down air exchange so the fragrance holds longer - not in a closed-up January morning, not ever.
Busy galleries, and the instinct to compensate. Launch weekends, festival periods, wedding-season traffic - the instinct is to turn it up because there are more people in the room. Resist it. A room with forty people in it already has more in it than the same room with four, and a level raised for a launch weekend is still raised in the third week of the following month, because nobody remembers to put it back. If a busy gallery needs anything, it needs the level to come down rather than up.
And the honest caveat about what this buys you. Matching perceived level across a portfolio does not make anybody remember your projects, prefer them, or choose one over another, and I am not going to suggest otherwise. What it does is stop your own rooms from being inconsistent with each other, which is a hygiene outcome rather than a marketing one. The ceiling on ambient scent research remains improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes, and none of that converts into a claim about buyers or sales.
The structural fact. A sales gallery is temporary by design. It is built for a project, it runs through the selling period, and when the project sells out it is struck - the model goes, the finishes wall goes, the building becomes somebody's home and the gallery ceases to exist. The next one is built somewhere else, possibly in a different kind of stock, with a different footprint, a different ceiling, a different entrance and a different services layout. Across a decade a developer may run five or six of them.
What that implies. Almost every physical element of the sales experience is project-specific and disposable. The register, if you hold it, is not. It carries from gallery to gallery, outliving each of the rooms it was installed in, and it is met repeatedly by the same brokers, the same staff on transfer and some of the same buyers coming back for a second purchase. It is one of the very few continuous elements in a discontinuous business.
And what that implies for the choice, which is the useful conclusion. A thing that has to run for ten years and be met forty times by the same people must be judged on how it wears, not on how it lands. Those are opposite criteria. A register with a strong personality lands beautifully at a launch and wears badly, because the quality that makes it noticeable on the first encounter is exactly the quality that makes it tiring on the fortieth. A quiet, unsigned register lands as nothing at all and wears indefinitely. For a portfolio you want the second one. Consistency is what makes a signature. Uniqueness does not.
This is also the honest answer to the developer who asks for something bespoke and distinctive for the brand. Bespoke composition is a real SOSA service and it is discussed on WhatsApp rather than priced on a page - no price, no minimum, no lead time, no process detail. But the cheaper honest answer comes first and I would rather give it: one of the seven Hotel Collection registers held at the same perceived level in every gallery for ten years already is a signature, and it is a better one than something distinctive that nobody holds consistently.
The local precedent, and it is a real one rather than a decorative one. Hazratganj has been the city's shopping district since 1827, and around its two-hundredth year it went through a coordinated facade and signage scheme - rooftop hoardings and encroachments removed, uniform cream and pink paint, uniform signage, stone pavements, heritage-style lighting. A whole district given a shared identity by becoming quieter and more uniform rather than louder or more individually expressive. That is precisely the move available to a developer with six galleries, and it is the opposite of what a brand agency will usually propose.
One practical consequence for the struck gallery. When a gallery comes down, the machine is a piece of equipment and it moves to the next site. What travels with it is not its setting - that stays with the old room and should be crossed off the card - but the register, the exclusion list, the method and the switch-off rule. The new gallery starts from the morning test and a fresh calibration, every time, with no exceptions for a team that is in a hurry.
- Pick one register for the whole portfolio and write the rooms that get nothing first.
- Air each new gallery and pass the morning test before any level is set.
- Calibrate every gallery separately with a stranger's nose, starting low and working up.
- Write unit, register, setting and hours on a card in that gallery. Review each project.
Choosing the register once, for a portfolio rather than for a building
You are choosing once, for a portfolio, and the criterion is different from the one you would apply to a single launch. Judge it on how it wears over ten years and six galleries, not on how it lands in the room you are standing in today.
The volumes first, site by site. Use the same door exercise everywhere: mark every door that is genuinely shut while a buyer is in the building, and each one ends a volume and begins another. The connected gallery floor is what you are scenting at each site. Negotiation rooms take the least of anything or nothing. Sample apartments are their own brief. Stores, pantries and sample-handling areas get nothing, at every gallery, without a site-by-site discussion.
Then the register, one for the portfolio. 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. Quiet Luxury is white tea, bergamot and cedar - hushed, polished and unsweet, and given one decision for a developer's whole portfolio with no further information, that is where I would go. It carries a small amount of presence across a gallery floor without becoming the thing anybody thinks about on their fortieth encounter, which is the correct test for something that has to outlive the buildings. White Tea Serenity is white tea, aloe and cedar - clean, weightless and spa-like, and the register that most readily reads as clean rather than as scented, which is the better choice if your galleries are bright, hard-surfaced and newly finished, or if any of them contains a sample apartment. Forest Suite is cedarwood, vetiver and green leaves - the driest of the three and the one that reads as structural rather than decorative, so it is received as a property of the building instead of a choice somebody made. That quality is genuinely useful across a portfolio of buildings that do not otherwise resemble each other.
What I would keep out of a portfolio in particular. Everything with a personality, and for the specific reason given above. Lobby Bar is citrus, pepper and amber, bold and after-dark, and a register with that much character is a poor ten-year choice however good a single launch it makes. Old-World Glamour is amber, violet and woods, plush and evening-elegant, and plush accumulates across a long appointment in a way that dry does not. Warm Welcome is citrus, floral and sandalwood, a genuine hotel-threshold register, which is the instinct a sales gallery encourages and the instinct to resist - a gallery already carries plenty of hospitality signalling. Tea Garden is jasmine, green tea and white tea, the least risky floral in the collection, and even so a floral of any weight in rooms where people handle finishes and fabric boards is the most identifiable thing in the building. 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 belong to each of your galleries rather than to the blend.
And if the brief in your head is something bespoke and ownable for the brand: bespoke composition is a real SOSA service, discussed on WhatsApp rather than priced on a page, with no price, no minimum, no lead time and no process detail given here. But take the cheaper honest answer first. One of the seven, held at the same perceived level in every gallery for a decade, already is a signature - because consistency makes a signature and uniqueness does not, and a distinctive blend that nobody calibrates properly at site four is worth less than a plain one that everybody does.
One standing arrangement, printed on every gallery's card. Anyone on the sales team can switch a named unit off without asking a manager. They are in that air eight to ten hours a day, and a reported reaction is a recalibration signal rather than a tolerance problem. No health or allergy claim is made in either direction.
| Scent | Why it suits the mood |
|---|---|
| Quiet Luxury · the portfolio default | White tea, bergamot and cedar. Hushed, polished and unsweet, and what I would choose for a developer's whole portfolio given one decision. It holds a little presence across a gallery floor without becoming the thing a broker or a returning buyer thinks about on their fortieth encounter, which is the only test that matters for something meant to outlive the buildings. |
| White Tea Serenity · bright, new galleries, or any with a sample apartment | White tea, aloe and cedar. Clean, weightless and spa-like, the register that reads as clean rather than as scented. The better portfolio choice where galleries are hard-surfaced and newly finished, and the safer one where a show flat is part of the sales experience and needs to read as a home. |
| Forest Suite · a portfolio of material-led, timber and stone galleries | Cedarwood, vetiver and green leaves. The driest of the shortlist and the one that reads as structural, so it is received as a property of each building rather than as a corporate decision applied to it. Useful precisely because your galleries will not resemble one another. |
| Nothing at all · the exclusion list, identical at every site | Not a lower setting - nothing. Pantries and kitchens, stores and back-of-house, anywhere finishes and fabric boards are handled closely, sample apartment bedrooms and bathrooms, and the negotiation room at about 51 cubic metres for 180 sq ft and a 10 ft ceiling. Plus any gallery whose fit-out has not yet stopped announcing itself, which is a timing exclusion rather than a permanent one. |
So the buying answer across a portfolio, and it is per site rather than per company.
For a single enclosed room at any gallery - a doored lounge, a reception that is genuinely its own volume - an ultrasonic is usually the whole purchase: a SOSA Boond at ₹899, or a SOSA Sukoon at ₹1,899 for something larger, 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 is the sensible way to run the portfolio choice past your own air in one gallery before committing the whole estate to it, judged on day five rather than the first afternoon.
For a connected gallery floor the commercial answer at each site is the SOSA Vaayu at ₹11,999: waterless cold-air nebulising of undiluted oil, so no water, no humidity and no wet residue - a plain design preference in a city with two damp stretches a year, and never a claim to control humidity or to treat a building. Approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. Bluetooth app and timer, 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so it needs a live socket, CE, RoHS and SGS. Across a portfolio the app is doing more work than anywhere else on this site: it is what makes a written setting a real setting rather than a wish, it holds gallery hours at each site, and it lets each card carry three seasonal settings without anybody touching the register. For the larger, ducted case there are the Aangan at ₹25,999 for approximately 8,000 to 10,000 sq ft and the Meenar at ₹38,500 for approximately 12,000 to 18,000 sq ft, and a unit is never ducted into air handling serving premises that are not yours. 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 - useful in a temporary gallery structure or where the power layout is awkward - 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, lasting about 6 to 10 weeks. A reed scents the few feet around it and will not fill a gallery, which on a reception desk is occasionally the whole answer. Note that it is a different register family from the machines, so if you run both, run them in rooms that are genuinely separate volumes.
To go deeper: if a new gallery is still on the drawing board, the placement decisions that are free now and expensive later are in planning Vaayu placement during HVAC, electrical and interior design. The sample apartment needs a different and much lower brief from the lounge, which is whether a show flat should smell more residential than the corporate sales lounge. And the way to stop re-arguing all of this at every launch is writing scenting into a standing sales-experience specification.
What SOSA does not publish and this page will not invent: consumption rate, refill frequency, monthly running cost, machine lifespan, minimum order quantity or installation lead time. Send the plans and ceiling heights for each gallery to WhatsApp at +91 96192 18531. 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.