★ SOSA for Fine-Dining Restaurants and Restaurant Groups
Entrance scenting and dining-room scenting are not two ways of doing one job - put them side by side on the five counts that decide where fragrance belongs and the entrance takes every line
★ ★ ★ ★ ★
★★★★★
"My reception now smells like a five-star lobby. Guests comment on it before they even reach the desk."
SOSA Vaayu · lobby scenting
★★★★★
"Zero dampness, which was my worry in monsoon. The mist is completely dry and the scent carries across the whole salon."
SOSA Vaayu · spa & salon
★★★★★
"Set the timer once and forgot about it. Runs only during store hours, refills last weeks. Exactly what I wanted."
SOSA Vaayu · showroom
★★★★★
"Our old water diffuser couldn't fill the living-dining. This one does the whole floor and you can't hear it running."
SOSA Vaayu · large home
★★★★★
"The app scheduling is the best part - strong in the mornings, gentle in the evening. Clinic feels calm all day."
SOSA Vaayu · wellness studio
★★★★★
"Paired it with the SOSA hotel oils. The projection is genuinely lobby-strength - nothing like a plug-in."
SOSA Vaayu · workspace
★★★★★
"My reception now smells like a five-star lobby. Guests comment on it before they even reach the desk."
SOSA Vaayu · lobby scenting
★★★★★
"Zero dampness, which was my worry in monsoon. The mist is completely dry and the scent carries across the whole salon."
SOSA Vaayu · spa & salon
★★★★★
"Set the timer once and forgot about it. Runs only during store hours, refills last weeks. Exactly what I wanted."
SOSA Vaayu · showroom
★★★★★
"Our old water diffuser couldn't fill the living-dining. This one does the whole floor and you can't hear it running."
SOSA Vaayu · large home
★★★★★
"The app scheduling is the best part - strong in the mornings, gentle in the evening. Clinic feels calm all day."
SOSA Vaayu · wellness studio
★★★★★
"Paired it with the SOSA hotel oils. The projection is genuinely lobby-strength - nothing like a plug-in."
SOSA Vaayu · workspace
★ The machine for the room that wins the comparison
SOSA VaayuThe arrival side of the threshold, and nowhere elseView ₹11,999
SOSA VaayuTimers on service hours, so the foyer can go quietView ₹11,999
SOSA VaayuKey-lock, because the losing room is one door awayView ₹11,999
✓ Waterless cold-air nebulisation of undiluted oil, so the only thing added to a restaurant's air is fragrance - no water, no mist, no residue on surfaces ✓ Wall and HVAC mountable with 1h/4h/8h/24h timers, adjustable intensity and a key-lock, which is the only dependable way to hold fragrance on one side of a threshold ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
Is there a version of dining-room scenting that works? None that I will sell you, and the variable people reach for is the wrong one. Turning it down does not change what is in the air, who owns the room or how long a seated guest is held in it - it only delivers less fragrance to the same wrong place. So there is no low setting, no base note underneath and no screened-off corner that makes it work, and no machine goes anywhere its output can reach a table. If the only mounting position your building offers does exactly that, the honest answer is to scent nothing at all.
What does the winning room cost, and how big is it? Less than the floor plan suggests, because you size the non-dining envelope and not the restaurant. A 4,000 sq ft restaurant is routinely a 200 sq ft foyer, a 50 sq ft host area and two washrooms: roughly 300 sq ft of scentable air and 3,700 sq ft that is never touched. Under about 750 sq ft of envelope the honest buy is one SOSA Sukoon at ₹1,899 or an ₹849 Mountain Breeze reed, and a Vaayu would be the wrong buy. One SOSA Vaayu at ₹11,999 earns its place once foyer, lounge, corridor and washroom lobby are one connected volume.
See the SOSA Vaayu Book a scenting plan
Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with adjustable intensity, a 400ml refillable tank lasting 90+ days a fill depending on intensity and run hours, Bluetooth app and button control, 1h/4h/8h/24h timers, operation under 38dB at 5W, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification, which are electrical and compliance marks and not medical approvals. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. The SOSA Sukoon (₹1,899) is an ultrasonic cool-mist diffuser covering roughly 270-320 sq ft and is supplied with three 15ml fragrances; the water-based Hotel Collection (₹299 / ₹999 / ₹1,799) is an ultrasonic fragrance and is not a refill for a waterless cold-air machine. SOSA reed diffusers are alcohol-free and phthalate-free, with 50ml lasting about 6-8 weeks and 130ml about 14-18 weeks. Cold-air refill oil for the Vaayu is not currently sold separately - the machine ships with 400ml included and further refills should be confirmed with SOSA. Warranty, annual maintenance, installation and bulk terms are not published and should be confirmed before ordering. Ambient scent is an interior and hospitality decision: it makes no clinical, therapeutic or wellbeing claim, it works alongside proper extraction, grease management, drainage, cleaning and air change and is never a substitute for any of them, it is never used to mask or remove another smell, and no claim is made that fragrance influences a guest's decision or any commercial outcome. Dining rooms, chef's tables, tasting-menu rooms and food-preparation areas are left unscented, no machine is placed where its output can reach a table or a pass, no fragrance is described as food-safe or safe for use around food, and the operator's own kitchen consultant and local food-safety and fire authority govern anything sited near a kitchen. Fragrance oil is flammable and is kept away from open flame and heat. The chef's judgement overrides any scenting plan in their own room. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.
Two machines, two rooms, one decision - that is how this question reaches me, and it is almost always written as though the two sides were close. They are not, and staging a fair fight to make this page look balanced would waste your afternoon. So I have laid the comparison out properly, count by count, and then told you what I found on every line of it.
Quick answers — read this first
Entrance or dining room - which makes more sense to scent? The entrance, and it is not close. Put the two rooms side by side on the five things that actually decide where ambient fragrance belongs - what is already in the air, how long a guest is in it, whether the air holds steady, who owns the room, and whether a machine can be controlled - and the entrance wins all five. The dining room loses all five, and it loses the first one before the others are read, because the dish in there is already a composition your guest paid for. So the dining room, the chef's table, any tasting-menu room and the pass stay unscented.Is there a version of dining-room scenting that works? None that I will sell you, and the variable people reach for is the wrong one. Turning it down does not change what is in the air, who owns the room or how long a seated guest is held in it - it only delivers less fragrance to the same wrong place. So there is no low setting, no base note underneath and no screened-off corner that makes it work, and no machine goes anywhere its output can reach a table. If the only mounting position your building offers does exactly that, the honest answer is to scent nothing at all.
What does the winning room cost, and how big is it? Less than the floor plan suggests, because you size the non-dining envelope and not the restaurant. A 4,000 sq ft restaurant is routinely a 200 sq ft foyer, a 50 sq ft host area and two washrooms: roughly 300 sq ft of scentable air and 3,700 sq ft that is never touched. Under about 750 sq ft of envelope the honest buy is one SOSA Sukoon at ₹1,899 or an ₹849 Mountain Breeze reed, and a Vaayu would be the wrong buy. One SOSA Vaayu at ₹11,999 earns its place once foyer, lounge, corridor and washroom lobby are one connected volume.
The short answer
Short answer: the entrance, and it is not a close comparison. On all five counts that decide where ambient fragrance belongs - what is already in the air, how long a guest is exposed, whether the air holds steady, who owns the room, and whether the machine can be controlled - the arrival wins and the dining room loses. So the dining room, the chef's table, any tasting-menu room and the pass stay unscented, and the signature lives in the foyer, host desk, lounge, corridors and washrooms in a dry, deliberately inedible register.
The pick: one SOSA Vaayu (₹11,999), mounted upstream and low in the arrival volume and on the foyer side of the threshold, once foyer, lounge, corridor and washroom lobby form one connected envelope - or one SOSA Sukoon (₹1,899), or a Mountain Breeze reed (₹849), where the arrival is a single small room.
Next step: send the floor plan with the dining room, the chef's table and the pass marked, and we will tell you where the threshold falls, which side of it we would scent and what we would refuse outright - Ask for a restaurant scenting plan.
In this guide
Four of those five counts are about the room rather than about the fragrance, which is why no dial and no clever composition changes the result. The only real variable left is how big your arrival actually is.
The arrival machine - tap to see the specification
For a connected arrival envelope past 1,500 sq ft
SOSA Vaayu ₹11,999
The map this comparison lands on
Which areas of a restaurant should be fragranced, and which shouldn't?
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
Which makes more sense for a fine-dining restaurant - scenting the entrance or scenting the dining room?
The entrance, on every count, and I will not stage a fair fight to make the page look even-handed. Five things decide where ambient fragrance belongs. First, what is already in the air. In your arrival there is nothing: no plate, no glass. In your dining room the dish is the composition your guest paid for, and the mechanism needs no study behind it - most of what we call taste is smell, and a great deal of it arrives from inside the mouth, through the back of the nose, while a guest chews and swallows. That nose cannot sort the air over the plate from the air in the room, because it is the same air. It is set out at length in whether perfume changes how diners perceive food. Second, exposure. A guest meets your foyer for perhaps forty seconds, walking, by choice, and your dining room for two or three hours, seated, unable to walk away from anything you put in it. Third, consistency - a foyer's air does not change with the menu, the hour or the extraction, and consistency is most of what a signature is. Fourth, authorship: the dining room already has an author and it is your chef, at its strictest in a tasting-menu room. Fifth, control - the arrival is the only volume where a machine can be mounted upstream, low, out of the eyeline and on a timer without its output crossing a threshold. Five to nil. So the dining room, the chef's table, any tasting-menu room and the pass stay unscented - not lightly, not as a base note underneath - and no machine goes anywhere its output can reach a table; if your building's only mounting position does, the honest answer is to scent nothing. The entrance win is not a free one, though. A foyer is the least stable air you own, because a door is an air exchange rather than a wall, so you accept a gradient and set the level for the guest walking back out after a long dinner. The register stays deliberately inedible - dry woods, cedar, pine and sage, green, tea, cool stone - which is why our own Fresh Brew at ₹849 is ruled out by name here: coffee at your door sends a guest hunting a dessert you do not serve. Then the arithmetic, which pushes most restaurants down the ladder: you size the non-dining envelope, not the restaurant. Under about 750 sq ft of envelope it is one SOSA Sukoon at ₹1,899 or an ₹849 Mountain Breeze reed, and a Vaayu would be the wrong buy. Once foyer, lounge, corridor and washroom lobby are one connected volume it is one SOSA Vaayu at ₹11,999, low, key-locked, on a service-hours timer. The standing limits: this is an ambience decision like lighting, it is never a mask for cooking, grease or a drain, the dining room stays unscented, and your chef's judgement overrides this plan in their own room. Ask for a restaurant scenting plan and send the floor plan.
The entrance wins all five counts and the dining room loses all five, so the signature lives in the arrival and the dining room, chef's table, tasting room and pass stay unscented. Then size the arrival rather than the restaurant: ₹849 or ₹1,899 for one small foyer, ₹11,999 once foyer, lounge, corridor and washroom lobby are one volume.
For the winning room, one SOSA Vaayu - waterless, rated to 1000m³, under 38dB, with 1h/4h/8h/24h timers and a key-lock, wall or duct mounted so the output stays on the foyer side of the threshold. ₹11,999. Under about 750 sq ft of arrival, buy the Sukoon at ₹1,899 instead and a Vaayu would be the wrong buy.
See the SOSA Vaayu ₹11,999 Ask for a restaurant scenting plan
The comparison, before anybody looks at a product page
One room has nothing in its air; the other already holds the chef's work
The machine for the winning room
Two honest answers, and which one is right is decided by the cubic volume sitting on the arrival side of your threshold rather than by the size of the restaurant. The images link to the product pages so you can read the specification before ordering anything.
A connected arrival envelope past 1,500 sq ft
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³, about 2,000-3,000 sq ft, with a 400ml tank running 90+ days a fill, app and button control, 1h/4h/8h/24h timers, adjustable intensity, under 38dB, 5W, auto-stop and key-lock. The wall and duct mounting is what wins the comparison in practice: it puts fragrance in a foyer and keeps it there.
From ₹11,999
Under about 750 sq ft of arrival - buy this instead
SOSA Sukoon
Ultrasonic cool-mist diffuser covering roughly 270-320 sq ft, supplied with three 15ml fragrances. Most restaurant foyers are this size once the dining room is subtracted, and at this size a Vaayu would be running at the bottom of its range in a room that never needed it.
From ₹1,899
The five counts, and how each one falls
Five counts decide this, and only one of them is about fragrance at all. Here they are grouped into the three decisions an operator actually has to make, in the order they happen.
1
Score the two rooms before you shop
The dining room loses the first count before the others are read
Write the five counts down and mark them yourself. What is already in the air: nothing in the foyer, the whole dish in the dining room. How long a guest is held in it: forty seconds walking, against three hours seated with nowhere to go. Whether the air holds steady: a foyer does, a dining room changes hour by hour with the menu and the extraction. Who owns the room: you own the door, your chef owns the tables. Whether the machine can be controlled: the arrival takes a mount, a timer and a lock, and the dining room offers no acceptable position at all. The scoring is the whole argument, and the dining-room case is lost on the first line.
Tip: Score it on paper before a supplier shows you a machine, and the meeting gets much shorter.
2
Take the win, then accept what it costs you
A foyer is the least stable air you own, and that is not a fault
The entrance wins, and it is not an easy room. A door is an air exchange rather than a wall, so the metre inside your glass is being replaced all evening and no setting holds it - the answer is to place two or three metres inward and accept a gradient, as set out in what constantly opening doors do to entrance fragrance. A host desk standing in that same air is not a second zone and gets no machine of its own. And the level is judged on the walk out at the end of a long dinner rather than on the walk in, because your guest meets it twice and their nose has adapted by the second time.
Tip: Send somebody in from the street at ten in the evening and ask whether they can name it. No is the right answer.
3
Then find the threshold and size what sits behind it
The envelope is smaller than the floor plan, and so is the buy
The win is only worth what the winning room contains, so measure it. Hold a single-ply tissue at the threshold with the building running as it runs at eight in the evening: if air is leaving the foyer towards the tables, no machine goes in that foyer at any setting, and the air-path reading decides that, not the dial. Then add up foyer, host area, lounge, corridor and washroom lobby in cubic metres and buy for that number. A 4,000 sq ft restaurant with a 200 sq ft foyer and two washrooms is a 300 sq ft job, which is a Sukoon at ₹1,899 or an ₹849 reed, and a Vaayu would be the wrong buy.
The SOSA principle
Put the two rooms side by side on the five counts that decide where fragrance belongs and the entrance takes all five, which is why this comparison has one column of answers rather than two.
A head-to-head is only worth reading when the sides are close, and the honest service here is to say that these two are not.
The comparison, count by count
Here is the whole head-to-head in one table, with the reason written out on every line rather than a tick in a column - and the map it lands on at the bottom.
The SOSA plan
Entrance against dining room, count by count, with the reason on every line
| The count | What to do |
|---|---|
|
What is already in the air
|
Entrance wins. There is nothing of yours in a foyer and nothing cooking in it. In the dining room there is the dish, the glass and the pairing, which is the composition your guest paid for and the one their nose is reading from the inside while they eat. The entrance takes this line before the other four are read. |
|
How long a guest is held in it
|
Entrance wins. Forty seconds, walking, by choice, against two or three hours seated with nowhere to move. A level that is invisible in a foyer is a constant at a table, which is also why the entrance is judged on the walk out at the end of dinner rather than on the walk in. |
|
Whether the air holds steady
|
Entrance wins. Nothing cooks in a foyer, so its air is the one part of your sensory experience that is the same on a Tuesday in March as on a Saturday in December. A dining room's air changes with the menu, the hour and how hard the extraction is working, so it could not carry a signature even in principle. |
|
Who owns the room
|
Entrance wins. The door is yours to compose. The tables belong to your chef, course by course, and an ambient fragrance is an uninvited constant running underneath a sequence somebody spent a year writing. In a tasting room that is not a close call, it is a refusal. |
|
Whether the machine can be controlled
|
Entrance wins. Upstream, low, out of the eyeline, wall or duct mounted, on a service-hours timer with the key-lock on. The dining room offers no acceptable position: aim is not a barrier, height buys nothing, and what counts is where the air arrives rather than where the box stands. |
|
The verdict, drawn as a map
|
Entrance and foyer, host desk, waiting lounge, a cocktail lounge a guest passes through before dining, corridors, washrooms and washroom lobbies, a banquet or private-event entrance: scented. Dining room, chef's table, tasting-menu room, the pass and the kitchen: never. That is the closed list, and every line of it carries its physical reason in the restaurant zone map. |
If your worry is not which room but whether the fragrance will stay in the room you chose, that is an air-path question rather than a strength question, and scenting the entrance without fragrancing the dining area shows you how to read it with a square of tissue before you buy anything. And if there is already a machine in your building and nobody is sure how far its output travels, whether a machine should ever sit near dining tables sets out the five checks that will tell you, starting with the napkins at the nearest table. SOSA is independent and not affiliated with any hotel.
One room wins, and the other is not a compromise
SOSA Vaayu ₹11,999 covers up to 1000m³, far more than any arrival envelope needs - which is exactly why it runs low on the foyer side of the threshold rather than hard.
I have written this as a comparison because that is how the question always arrives, and I should say plainly that I have never yet walked a building where the dining-room column won a single line of it.
— Sonal Sahani, SOSA
Why the unglamorous features decide this one
A mount, a timer and a lock are what keep the win inside the foyer
The SOSA restaurant specification
Three products cover almost every restaurant, and the choice is decided by the volume on the arrival side of the threshold rather than by the restaurant's floor area. Cold-air refill oil for the Vaayu is not currently sold separately, so the 4 × 100ml supplied runs 90+ days a fill and further supply should be confirmed with SOSA in writing before you plan around it. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA restaurant specification
The winning room, sized honestly rather than hopefully
| Machine | Best for | Why it works | Price |
|---|---|---|---|
 SOSA Mountain Breeze reed diffuser
|
A single small foyer under about 300 sq ft | Pine, sage and cedar, dry and unmistakably not food. Continuous, silent and unpowered, with no off switch - useful in a washroom and occasionally a nuisance in a foyer during a private lunch | ₹849 View → |
|
SOSA Sukoon
|
An arrival envelope of roughly 300-750 sq ft | 270-320 sq ft of coverage with three 15ml fragrances included. This is where most restaurants land once the dining room is subtracted, and at this size a Vaayu would be the wrong buy | ₹1,899 View → |
|
SOSA Vaayu
|
Foyer, lounge, corridor and washroom lobby as one connected volume | 1000m³, waterless, adjustable intensity, app timers, key-lock, under 38dB, and wall or HVAC mountable so the output stays on the arrival side of the threshold | ₹11,999 View → |
Score the two rooms, take the entrance win, then size what is actually behind the threshold. Ambient scent here is an ambience decision like lighting; it is never a mask for cooking, grease, fish, smoke or a drain; and the dining room, the chef's table, any tasting-menu room and the pass stay unscented, with no machine placed where its output can reach a table. I will not describe any fragrance as food-safe or safe for use around food, because we have not tested for that and will not imply it, and anything sited near a food-preparation area is a question for you, your kitchen consultant and your local authority rather than for me - keeping the machine out of those areas entirely is how we sidestep it. Fragrance oil is flammable, so oil and machine stay away from open flame and heat, which in a restaurant means table candles, flambe service, tandoors and ranges. And plainly: SOSA does not publish a business-outcome number because it has not measured one - no covers, no table turns, no spend per head. Ask for a restaurant scenting plan before you spend anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
Operators send me this question as a comparison and I think they already know the answer; what they want is for somebody in my trade to say it out loud so the argument stops going round the table. So: the entrance, and the dining room is not the runner-up. It is not on the list. I have been in the room when a supplier described a dining-room installation as very subtle, and the chef sitting two chairs away had the good manners not to say what their face was already saying.
The reason I like this page is that four of the five counts have nothing to do with perfumery. What is in the air, how long somebody is in it, whether the air holds steady, who owns the room - those are questions about a building and a kitchen, and a perfumer who answers them honestly ends up with a smaller order and a plan that lasts. The fifth count, control, is the only one where hardware helps, and it helps a great deal: a mount, a timer and a lock are what keep an entrance signature from quietly becoming a dining-room one over a few months of well-meaning staff adjusting things.
On hardware I would rather undersell. A single small foyer is a Mountain Breeze reed at ₹849. An arrival of 300 to 750 sq ft is a Sukoon at ₹1,899, and a Vaayu at that size would be the wrong buy. Once the foyer, lounge, corridor and washroom lobby are one volume of air it becomes a Vaayu at ₹11,999, and a very large banqueting foyer becomes an Aangan at ₹25,999. If your room still smells of last night, buy none of them yet. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Entrance scenting or dining-room scenting: which makes more sense for fine dining?
The entrance, on all five counts that decide it. In a foyer there is nothing else in the air, a guest is there for seconds by choice, the air holds steady week to week, the room is yours to compose, and a machine can be mounted and locked where its output cannot travel. A dining room fails every one of those. So the dining room, the chef's table, any tasting-menu room and the pass stay unscented, and the signature lives in the arrival.
Is dining-room scenting acceptable at a very low setting?
No, and the setting is the wrong variable. Turning it down does not change what is already in that air, who owns the room, or the fact that a seated guest is held in it for two or three hours with nowhere to move. It only delivers less fragrance to the same wrong place. No machine goes anywhere its output can reach a table, and if the only mounting position in your building does exactly that, the honest answer is to scent nothing at all.
Why does the food itself count against scenting the dining room?
Because smell and taste share one airway. Much of what we call taste is smell arriving from inside the mouth, through the back of the nose, while a guest chews and swallows, and that nose cannot separate the air over the plate from the air in the room. They are the same air. It is a mechanism rather than a measurement, so there is no study, figure or claim about a particular dish behind it - only the practical conclusion not to put perfume in the air over food.
If I scent the entrance, does it not drift to the tables anyway?
That depends on your building rather than on your machine, and it is worth ten minutes to find out. Hold a single-ply tissue at the threshold at chest height with the kitchen, the air conditioning and the door all working as they do in service. If the air is leaving the foyer towards the tables, no machine belongs in that foyer at any setting and no dial rescues it. If it is leaving towards the street, mount upstream and low, and run it quietly.
Which machine does the winning room need, and what does it cost?
Size the non-dining envelope rather than the restaurant. Under about 750 sq ft of foyer, host area, corridor and washroom lobby, the honest buy is a Sukoon at Rs 1,899 or a Mountain Breeze reed at Rs 849, and a Vaayu would be the wrong buy. Once those rooms form one connected volume it is one Vaayu at Rs 11,999, mounted upstream and key-locked, with 90+ days a fill on the 400ml tank. A large banqueting foyer becomes an Aangan at Rs 25,999.
Five counts to nil - so the signature goes at the door
SOSA — Clinic Scenting for fine-dining restaurants and restaurant groups
The SOSA Vaayu (₹11,999) covers up to 1000m³, about 2,000-3,000 sq ft, and belongs in the arrival volume with its output on the foyer side of the threshold; under about 750 sq ft of non-dining envelope the honest answer is a Sukoon at ₹1,899 or a Mountain Breeze reed at ₹849, and a large banqueting foyer becomes an Aangan at ₹25,999. Waterless, under 38dB, key-locked, 90+ days a fill, made in India, and a portion of every order supports girl-child education through Nanhi Kali. Send the floor plan with the dining room marked and we will tell you what we would leave alone.
Ask for a restaurant scenting plan → SOSA Vaayu · ₹11,999
One more look at the Vaayu
Continue the read
More from SOSA
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the planning advice applies to any brand.Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with adjustable intensity, a 400ml refillable tank lasting 90+ days a fill depending on intensity and run hours, Bluetooth app and button control, 1h/4h/8h/24h timers, operation under 38dB at 5W, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification, which are electrical and compliance marks and not medical approvals. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. The SOSA Sukoon (₹1,899) is an ultrasonic cool-mist diffuser covering roughly 270-320 sq ft and is supplied with three 15ml fragrances; the water-based Hotel Collection (₹299 / ₹999 / ₹1,799) is an ultrasonic fragrance and is not a refill for a waterless cold-air machine. SOSA reed diffusers are alcohol-free and phthalate-free, with 50ml lasting about 6-8 weeks and 130ml about 14-18 weeks. Cold-air refill oil for the Vaayu is not currently sold separately - the machine ships with 400ml included and further refills should be confirmed with SOSA. Warranty, annual maintenance, installation and bulk terms are not published and should be confirmed before ordering. Ambient scent is an interior and hospitality decision: it makes no clinical, therapeutic or wellbeing claim, it works alongside proper extraction, grease management, drainage, cleaning and air change and is never a substitute for any of them, it is never used to mask or remove another smell, and no claim is made that fragrance influences a guest's decision or any commercial outcome. Dining rooms, chef's tables, tasting-menu rooms and food-preparation areas are left unscented, no machine is placed where its output can reach a table or a pass, no fragrance is described as food-safe or safe for use around food, and the operator's own kitchen consultant and local food-safety and fire authority govern anything sited near a kitchen. Fragrance oil is flammable and is kept away from open flame and heat. The chef's judgement overrides any scenting plan in their own room. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.