Here is the arithmetic that settles it, and I want it near the top because groups argue about this for months without doing it. Take a smaller branch of about 900 sq ft with an 11 ft ceiling. Floor area multiplied by ceiling height is 9,900 cubic feet, and 9,900 divided by 35.3 is about 280 cubic metres. Now take a second branch at 1,600 sq ft with a 14 ft ceiling: that is 22,400 cubic feet, about 635 cubic metres. The second branch holds roughly 2.3 times the air of the first. Set both machines to the same number and you have not created one brand experience. You have created one room that is correct and one that is thin, or one that is correct and one that is loud - and you will not know which, because nobody was standing in both doorways on the same morning.
And volume is only the first of six differences. The others are ceiling height in its own right, because the part of the volume a customer occupies is the bottom six feet and a tall room puts a lot of air above that; aperture, meaning whether the front is a sealed door or a shutter standing open onto the street, because an open front joins the first few feet of the shop to outdoor air; door traffic, because a branch whose door cycles constantly is a different air-exchange problem from one where it opens twenty times a morning; air handling, because whatever moves air through each building moves your output with it; and materials, because a floor of soft goods, carpet and upholstery behaves differently from one of stone, glass and steel.
So the group standard you actually want is not a number. It is a register, a method and a record: one register across every branch, forever; each site calibrated separately by somebody who has been outside for ten minutes walking in through that site's own front door; and the result written down per site and per volume, because a branch with a doored appointment room has two answers rather than one.
The limits, up front. I will not tell you that a scent sells anything at any branch - no claim about footfall, enquiries, purchases, transaction value, referrals or retention appears here. The honest ceiling is improved evaluations of a space and its service, longer dwell and stronger recall of a space, at moderate effect sizes. Fragrance adds scent and never removes odour, and no SOSA product treats, filters, dries, dehumidifies or purifies air. And ventilation is never reduced at any branch to make a register hold longer.
How do you calibrate a branch properly? One person, one morning, one method, repeated at every site. They stand outside for at least ten minutes so their nose resets. They walk in through the branch's own customer entrance at an ordinary trading hour, not before opening. They stop three steps inside and are asked an open question - what do you notice? - rather than a leading one, because asking whether they can smell the fragrance plants the answer. If they can name what the room smells of as a product, the setting comes down. Then the same person repeats it at the next branch, ideally on the same day, because the only reliable comparison between two rooms is one nose comparing them within a few hours. Then it gets written down.
What exactly should be written down for each branch? Per site and per volume: the branch, the room, the connected volume in cubic metres with the ceiling height you assumed, the unit, the register, the exact setting, the hours it runs, the date it was calibrated, and the name of the person who calibrated it. A branch with a doored appointment room gets two lines, not one, because a room whose door genuinely shuts is a separate body of air - and a private room of 150 sq ft at a 10 ft ceiling is 1,500 cubic feet or about 42 cubic metres, roughly a seventh of a 280 cubic metre floor, holding fewer people for much longer, so it takes less than the floor and sometimes nothing. The card is what stops a group drifting into six different rooms over two years.
Do the arithmetic once and the argument is over. Branch A is 900 sq ft with an 11 ft ceiling: 900 multiplied by 11 is 9,900 cubic feet, and 9,900 divided by 35.3 is about 280 cubic metres. Branch B is 1,600 sq ft with a 14 ft ceiling: 1,600 multiplied by 14 is 22,400 cubic feet, which divided by 35.3 is about 635 cubic metres. Branch B holds roughly 2.3 times the air of Branch A. Now suppose Branch C is the same 900 sq ft floor at 11 ft but with a 400 sq ft mezzanine at a 9 ft ceiling joined by an open stair: the mezzanine is 3,600 cubic feet, about 102 cubic metres, and because the stair is open there is no door to end one volume and begin another, so Branch C is 9,900 plus 3,600 - 13,500 cubic feet, about 382 cubic metres, in a single connected body of air. Three branches, three volumes, 280, 635 and 382 cubic metres. One number cannot be correct in all three, and the group that insists on one number has chosen to be correct in at most one of them.
Set all three against the machine and you get the other half of the finding. A SOSA Vaayu at ₹11,999 is published for approximately 1000 cubic metres of connected air, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly. Every one of those three branches sits comfortably inside that. So the machine is not the constraint at any of them, which means nobody needs to argue about capacity - the entire argument is about how far down each site runs, and a group that understands that will get this right while a group arguing about output will not.
The method is one person, one day, one open question. Send the same person to every branch, ideally within a few hours. At each site they wait outside for at least ten minutes so their nose resets - this is not optional and it is the step people skip. Then they walk in through that branch's own customer entrance during ordinary trading, stop three steps inside, and are asked what they notice, as an open question. Not "can you smell the fragrance", which plants the answer and produces a useless yes. If they can name what the room smells of as a product, that branch comes down. One nose, comparing rooms within a single day, is the only instrument you have that can genuinely compare two branches, because no two people's thresholds are the same and nobody who works in a building can report on it.
And then it goes on a card, per site and per volume. The branch, the room, the connected volume in cubic metres with the ceiling height you assumed, the unit, the register, the exact setting, the hours, the date and who set it. Per volume matters: a branch with an appointment room whose door genuinely shuts has two volumes and needs two lines, and that private room - 150 sq ft at a 10 ft ceiling is 1,500 cubic feet, about 42 cubic metres, roughly a seventh of Branch A's floor - holds fewer people for far longer and therefore takes less than the floor outside it, or nothing at all. Without the card, a group of three branches becomes three different rooms within two years, one nudge at a time, and nobody will be able to say when it happened. A portion of every SOSA order supports girl-child education through Nanhi Kali.
If you do one thing this month, do the volumes. Get a tape measure and a plan for each branch and write, for every trading volume in the group: floor area, ceiling height, cubic feet, cubic metres, and whether it is connected to anything else. It will take an afternoon and it will end an argument that has probably been running for a year, because once the three numbers are on one sheet nobody continues to believe that one dial setting could be right in all three.
Then a warning about the most common failure mode in a group, which is not calibration at all. It is the branch manager who adjusts. Every group has one site where the number moves - because a customer said something once, because the manager thought it seemed weak on a Monday, because a new person arrived and did not know there was a card. This is how three branches become three different businesses, and the reason it is invisible is that everyone involved has adapted to their own building and genuinely believes theirs is the correct one. The defence is not a policy document. It is a card by the unit with a name on it and a rule that any change requires a new line: the new number, the reason, the date, and who did it.
The second most common failure is subtler and worth naming. Somebody visits the flagship, likes the room, and takes the number home. They are not being careless - they are doing exactly what a consistent brand seems to require. But a number carried from a 635 cubic metre branch with a 14 ft ceiling into a 280 cubic metre branch with an 11 ft ceiling produces a room that is more than twice as loudly served, and the smaller branch's regulars are the people who will notice. If you take anything from a flagship visit, take the impression at the door and then calibrate your own site to match it.
And the standing rule, at every branch equally. Anyone on any floor can switch a named unit off without asking a manager. Your staff stand in that air eight to ten hours and are the most exposed people in any of your buildings, and they are also the least reliable judges of the level because adaptation is fastest in the people present most. A reported reaction at any branch is a recalibration signal rather than a tolerance problem, and it is handled that day. No health or allergy claim is made here in either direction.
One more genuinely local point. If your branches are in different parts of the city they are not the same age of building stock - Lucknow's long-established retail district around Hazratganj dates back to 1827 and was redesigned in the Victorian manner after 1857, while a planned township like Gomti Nagar was taken up by the development authority in the 1980s and occupied from 1995 onwards. I am not going to tell you what that means for your two shopfronts, because construction, glazing and air handling vary building by building and no page can know yours. What I will tell you is that it is a reason to expect the two doorways to behave differently, and to calibrate each rather than assume.
Six things that differ between two branches, and why every one of them breaks the shared dial
Three questions decide whether one register genuinely connects a group: what is shared, what is calibrated, and what is written down. Get those three right and two dissimilar branches read as one business. Get them wrong and you have one register producing three unrelated rooms.
Start with the arithmetic, because it is the part that ends the debate. Branch A at 900 sq ft and an 11 ft ceiling is 9,900 cubic feet, about 280 cubic metres. Branch B at 1,600 sq ft and a 14 ft ceiling is 22,400 cubic feet, about 635 cubic metres. Branch C, the 900 sq ft floor plus a 400 sq ft mezzanine at 9 ft joined by an open stair, is 9,900 plus 3,600, so 13,500 cubic feet and about 382 cubic metres. And a doored appointment room at 150 sq ft and 10 ft is 1,500 cubic feet, about 42 cubic metres, which is its own volume with its own answer. Four numbers, and a single shared dial setting cannot be correct against more than one of them.
Now the machine, so nobody buys the wrong thing. The SOSA Vaayu at ₹11,999 is published for approximately 1000 cubic metres of connected air. Branch B at 635 cubic metres is the largest of the three and still inside that, which means the group's problem is never capacity - it is calibration. Where a group does outgrow it is a genuinely large connected floor: 3,000 sq ft at a 12 ft ceiling is 36,000 cubic feet, about 1,020 cubic metres, and that is the point at which the honest answer is a ducted machine or a second volume treated separately rather than a bigger number on one unit. The ducted Aangan at ₹25,999 covers approximately 8,000 to 10,000 sq ft and the Meenar at ₹38,500 approximately 12,000 to 18,000 sq ft.
The word connected is where most group errors live. A coverage rating assumes one connected body of air and scent does not travel through a closed door, so at each branch you walk the plan and mark every door that genuinely stays shut during trading. An open stair joins two floors into one volume. A doored appointment room separates one. A strongroom, a doored office and any workshop area behind a door are all separate, and get nothing - and no unit stands near stock areas, open trays or a workshop bench, which is ordinary prudence about equipment placement rather than a claim of any kind.
Finally the seasons, which apply to every branch at once and are the one thing in this whole system that can legitimately be scheduled centrally. Lucknow's year has three stretches: April and May hot and genuinely dry, with the mean daily maximum in May near 39.9 degrees C and the year's humidity trough in the hottest months; July and August wet, near 238 and 242 mm; and late November to February cold and damp, January mean minima near 7.8 degrees C, January days reaching only about 21.4, and fog common through December and January. Three settings per site, written on that site's card. One register across the group, forever.
Ceiling height on its own account. Volume is not the whole story, because the part of the room a customer actually occupies is the bottom six feet or so. A tall room holds a great deal of air above head height that contributes to the volume calculation without ever being experienced by anybody. That is why a 14 ft branch needs its own calibration rather than a proportional scaling of the 11 ft branch's number - proportional arithmetic gets you into the right area and the doorway test gets you to the answer.
Aperture. Whether the front is a door that stays shut or a shutter standing open onto the pavement through trading hours. If the front is open, the first several feet of that branch are effectively outdoor air and nothing reaches them - which changes both where the unit goes and what you can honestly expect at the threshold. Two branches with different fronts are two different problems even at identical volume, and the response is placement deeper into the room, never a bigger number and never closing anything.
Door traffic. A branch whose door cycles constantly through the day is exchanging air in pulses all day long. A quieter branch is not. That affects how a room holds anything, and it varies not only between branches but between a Tuesday morning and a Saturday evening at the same branch - which is an argument for calibrating at an ordinary trading hour rather than at opening time, when the room is at its most flattering and least representative.
Air handling. Whatever moves air through each building moves your output with it, and the two branches will not be the same. A unit sitting in a supply airstream has its output carried away and thinned before it reaches the part of the room people stand in; a unit in a dead corner does nothing. I am not going to make any claim about what the air handling in any particular Lucknow building is, because that varies building by building and is a matter for the people responsible for each one. I am telling you it is a variable and that it differs, which is precisely the argument for per-site calibration.
Materials. A branch with carpet, upholstered seating and soft goods behaves differently from one that is stone, glass and steel. Two rooms of identical volume, identical machine and identical setting will not read the same if one is soft and one is hard. This is also why a branch that has just been refitted needs recalibrating even though nothing about its volume changed - and why a new fit-out is off-gassing, which is a source to wait out and ventilate, never something to cover, because fragrance adds scent and never removes it.
One person. Thresholds differ between individuals by more than most people expect, so two different visitors calibrating two branches are not producing comparable answers. Pick one person and let them do all the sites. They should not work in any of the branches - anybody who spends their working day in one of these rooms has adapted to it and cannot report it - which in practice means an owner who works out of a head office, a family member, or somebody hired for the morning.
One day. Noses shift with the weather, with what you ate, with whether you have a cold, and with what building you were in an hour ago. The comparison you want is between two rooms, so you want to hold the nose constant, which means doing every branch within a few hours rather than across a fortnight. In a city with Lucknow's range this matters more than elsewhere: a calibration morning in a hot dry May and another in a foggy January are not the same instrument, and if you must split the work across days, do the sites in the same season and note the date on every card.
Ten minutes outside. Before entering each branch, the person waits outside for at least ten minutes. This is the step everybody skips and it invalidates everything when skipped, because a nose that has just left a scented room will under-report the next one. Ten minutes in ordinary outdoor air resets enough to make the reading usable.
An ordinary trading hour, through the customer entrance. Not before opening, when the room has been shut all night and has accumulated - although a separate morning check is genuinely useful for a different purpose, which is finding out whether there is a source problem you should be dealing with before any of this. For calibration you want the branch as customers meet it: staff in, doors cycling, trays out, the floor working. And in through the front the customers use, not the staff door.
An open question. Stop three steps inside and ask: what do you notice? Not "can you smell the fragrance", which plants the answer and gets a yes from a person who wants to be helpful. The target answer is that the shop seems well kept and they cannot tell you why. If they can name what the room smells of as a product, it is too high for this brief, whatever the number says and however correct that number was at the other branch.
Then the appointment room, separately. If the branch has a room whose door genuinely shuts, it is a separate body of air and gets its own walk-in, its own question and its own line on the card. A private room at 150 sq ft and a 10 ft ceiling is 1,500 cubic feet, about 42 cubic metres, against roughly 280 for a 900 sq ft floor at 11 ft - about a seventh of the air, holding fewer people for very much longer. It takes less than the floor, never more, and at a good many branches the honest answer for that room is nothing at all.
What goes on the card, which lives physically by the unit rather than in a shared drive nobody opens. The branch. The room. The connected volume in cubic metres, with the ceiling height you assumed written next to it, because in two years somebody will want to know whether the number was computed or guessed. The unit. The register. The exact setting. The hours it runs. The date it was calibrated. And the name of the person who calibrated it. Photograph each card and keep the photographs together, because that is your group baseline.
Per volume, not just per site. A branch with a doored appointment room has two lines. A branch with a mezzanine joined by an open stair has one line covering both levels, because there is no door and therefore no boundary, and the card should say so explicitly: 900 sq ft at 11 ft plus 400 sq ft at 9 ft is 13,500 cubic feet, about 382 cubic metres, one connected volume. Writing that down is what stops a future manager installing a second unit upstairs to fix a problem that is actually a placement issue.
The change rule, which is the whole point of the exercise. Any change to a number requires a new line on the card: the previous number, the new number, the reason, the date, the name, and if the change is seasonal, the date it goes back. A change without a revert date is a permanent change being described as a temporary one. This is also the defence against the peak-season nudge, which is the commonest way a level rises and never falls: raising takes thirty seconds, reverting requires somebody to remember and to be able to detect that it is needed, and the person who raised it has been breathing that air ever since.
The group review, twice a year, and keep it cheap. Same person, same method, all branches within a day, twice a year - once in the hot dry stretch and once in the cold damp one, which in Lucknow are genuinely different rooms. Record what they found. If one branch has drifted, you will see it immediately, and you will have a dated card showing what it used to be, which converts an argument into an administrative correction.
And the one thing that never varies across the group. The register. Same register at every branch, permanently, through every season and every peak. Levels are per site; the register is the brand. A group that runs one register at three correctly calibrated levels reads as one business; a group that runs three registers at one number reads as three businesses that share a signboard. Consistency makes a signature. Uniqueness does not.
- Measure every branch: area, ceiling height, cubic feet, cubic metres, connected or not.
- Pick one register for the whole group and never change it, at any branch.
- Calibrate each site separately - one nose, one day, ten minutes outside, open question.
- Write a card per site and per volume, and require a name and date for any change.
One register across the group, one calibration per site, written down per volume
So, practically, how a group does this from a standing start.
Step one is the measuring sheet, and it is an afternoon's work. One row per volume across the whole group: branch, room, floor area, ceiling height, cubic feet, cubic metres, and a yes or no for whether it is connected to the next volume. Mark every door that genuinely stays shut in trading hours, because each of those ends one body of air and begins another. Mark every open stair, because those join volumes that look separate on a plan. Mark whether each front is a sealed door or a shutter standing open, because an open front means the first several feet of that branch are effectively outdoor air. When this sheet exists, most group arguments about scenting resolve themselves.
Step two is one register for the whole group, chosen once. 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 jewellery group the shortlist is narrow and it is a context choice rather than a taste one. Quiet Luxury is white tea, bergamot and cedar - hushed, polished and unsweet, and what I would choose for a group with one decision and no further information, because it behaves predictably across dissimilar rooms and does not become the thing anybody thinks about at minute ninety. White Tea Serenity is white tea, aloe and cedar - clean, weightless and spa-like, the register that most readily reads as clean rather than as scented, which is useful when your branches are of different ages and you want them to share a quality rather than a statement. Forest Suite is cedarwood, vetiver and green leaves - the driest, and the one that reads as part of the building rather than as a decision, which is the property that travels best between an older address and a newer one.
The ones I would keep out of a jewellery group. Old-World Glamour is amber, violet and woods, plush and evening-elegant, and plush accumulates across a two-hour sit. Lobby Bar is citrus, pepper and amber, bold and after-dark, and a theatrical register turned down is a quiet theatrical register rather than an inconspicuous one. Warm Welcome is citrus, floral and sandalwood, a threshold register, which is the wrong idea for rooms whose job is to be sat in. Tea Garden is jasmine, green tea and white tea and is the least risky floral; even so I would keep a floral of any weight out of rooms where customers handle goods at close range.
I will not rank those seven against each other on measured throw or longevity. SOSA does not publish that comparison, and in a multi-branch group the variables that dominate are your six building differences rather than anything about the blend.
Step three is calibration, per site, by the method in the second card. One person, one day, ten minutes outside each branch, in through the customer entrance at an ordinary trading hour, open question three steps inside. Expect the numbers to differ, expect them to differ by more than you assumed, and do not be tempted to average them. And do the appointment rooms separately, where the honest answer is often nothing.
Step four is the card, per site and per volume, with a name and a date. Step five is a review twice a year with the same person and the same method, once in the hot dry stretch and once in the cold damp one. That is the entire system, and it costs a few afternoons a year rather than money.
And the standing arrangement at every site. Anyone on any floor can switch a named unit off without asking a manager. Staff stand in that air eight to ten hours and are the most exposed people in every one of your buildings, 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 default for a multi-branch group | White tea, bergamot and cedar. Hushed, polished and unsweet, and the one I would pick for a group with a single decision. It behaves predictably across dissimilar rooms and does not become the thing a family thinks about at minute ninety, which is what you need when the same register has to work in a 280 cubic metre branch and a 635 cubic metre one. |
| White Tea Serenity · branches of different ages | White tea, aloe and cedar. Clean, weightless and spa-like, and the register that most readily reads as clean rather than as scented. When your addresses are of different vintages and different material palettes, sharing a quality travels better than sharing a statement, and this is the one that shares a quality. |
| Forest Suite · where the materials differ most | Cedarwood, vetiver and green leaves. The driest of the shortlist and the one that reads as structural rather than decorative, so it is received as a property of whichever building it is in rather than as something imported from head office. That is the property that travels best between an older street-grain address and a newer planned one. |
| The same number at every branch · the thing not to standardise | Not a register - the mistake. A shared dial setting across unmatched buildings produces one correct room and one loud or thin one, and the branch that suffers is usually the smaller, older, lower-ceilinged one whose regulars are the most likely to notice. Standardise the register, the method and the card. Calibrate the number per site, and write down the volume you calibrated it against. |
On equipment across a group. For one enclosed room at a branch - an appointment room, an office, a reception where somebody sits - 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 for a group to audition registers before committing every site to one, and each should be judged on day five rather than the first afternoon.
For a connected retail floor at each branch 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, with SOSA's own copy also stating 2,000 to 3,000 sq ft scented evenly - which comfortably covers a 280, a 382 or a 635 cubic metre branch, so capacity is not what a group should be arguing about. The Bluetooth app and timer is the part that earns its place in a multi-site business, because it is what lets each site's schedule be written down and held rather than improvised. 400ml tank, freestanding or wall and HVAC mount, DC 12V / 1A at 5W so each site needs a live socket, CE, RoHS and SGS. The two systems are not interchangeable: the ultrasonics are water-based cool-mist machines, while the Vaayu and the ducted Aangan at ₹25,999 (approximately 8,000 to 10,000 sq ft) and Meenar at ₹38,500 (approximately 12,000 to 18,000 sq ft) run waterless nebulising oil. The ₹299 water-based bottle never goes into a Vaayu or an HVAC machine.
If a smaller branch or a single doored room wants no plug, no noise and nothing to switch off - and in a group, nothing to nudge - 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. Be honest with yourself, though: a reed is a different register family from the Hotel Collection, so a group running machines at two branches and reeds at a third is not running one signature across the group.
To go deeper into the rest of this block: if your branches have very different peak weeks, the reason the dial still should not move is in whether diffusion settings should change during wedding-season and festival peaks. If somebody at head office is trying to rank branches by footfall to decide which gets a machine, read whether daily footfall is the right way to evaluate a Vaayu first, because the right variables are connected volume and dwell. And if one of the branches is a brand-new address with no history behind it, whether a new jewellery brand can compete on sensory experience is the honest version of that conversation.
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 - and in a multi-branch business that applies to every one of those questions multiplied by the number of sites. Send the measuring sheet 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.