★ SOSA for Fine-Dining Restaurants and Restaurant Groups
A luxury restaurant washroom should smell of having been cleaned about ten minutes ago - which is a citrus-mint job, and the one job in your building that no dry wood can do
★ ★ ★ ★ ★
★★★★★
"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
★★★★★
"My reception now smells like a five-star lobby. Guests comment on it before they even reach the desk."
SOSA Vaayu · lobby scenting
★ The citrus-mint source for one washroom - unpowered, silent, always on
SOSA Morning Freshness reed diffuserMalabar lemon and mint - it reads as cleanedView ₹749SOSA Morning Freshness reed diffuser50ml runs 6-8 weeks, 130ml runs 14-18View ₹749SOSA Morning Freshness reed diffuser₹749, no plug, nothing for a cleaner to switch offView ₹749
✓ Alcohol-free and phthalate-free on a coconut-derived base, six fibre reeds flipped weekly - a volume control rather than a range control, so a bigger bottle buys months and not metres ✓ A washroom is a small volume, so the honest buy here is a ₹749 reed or a ₹899 Boond, and a Vaayu at ₹11,999 would be the wrong buy for one washroom ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
Why a citrus-mint here, when the foyer is dry woods? Because the two rooms are answering different questions. A foyer is saying this is a considered building, and dry cedar, pine and sage say that beautifully. A washroom is saying this room was cleaned, and a dry wood cannot say it - woods read as furnishing, citrus and mint read as cleaning. It is the one place in a restaurant where a brighter, sharper direction is right rather than a compromise, and the only room where I will happily be louder than in the foyer.
What does one washroom actually cost to do properly? Less than the tap. A washroom is a small volume - a 60 sq ft room at 3m is under 6m³ - so the honest source is small and continuous. One Morning Freshness reed at ₹749 for 50ml or ₹1,249 for 130ml, or a SOSA Boond at ₹899 where you want a level you can set. A Vaayu at ₹11,999 for one washroom would be the wrong buy and I will say so on a call.
See the SOSA Morning Freshness reed diffuser 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.
Almost every operator who writes to me about a washroom has already spent more on the tap than on everything I sell, and is still not sure the room is telling the truth about the restaurant. What they want is not a perfume. What they want is for a guest to walk in and conclude, without thinking about it for a second, that somebody was in here recently with a cloth.
Quick answers — read this first
What should a luxury restaurant washroom smell like? Of having been cleaned, and very recently. That is the whole brief. A washroom is not a room where fragrance is meant to be admired - it is a room where a guest is looking for evidence, and the evidence they are looking for is housekeeping. So the direction is bright and clean: a citrus-mint, lemon and mint, or a clean green. Not a floral, not a gourmand, not a heavy wood, and not the sharp blue-chemical note that commercial washroom products use, which announces a product rather than a clean room.Why a citrus-mint here, when the foyer is dry woods? Because the two rooms are answering different questions. A foyer is saying this is a considered building, and dry cedar, pine and sage say that beautifully. A washroom is saying this room was cleaned, and a dry wood cannot say it - woods read as furnishing, citrus and mint read as cleaning. It is the one place in a restaurant where a brighter, sharper direction is right rather than a compromise, and the only room where I will happily be louder than in the foyer.
What does one washroom actually cost to do properly? Less than the tap. A washroom is a small volume - a 60 sq ft room at 3m is under 6m³ - so the honest source is small and continuous. One Morning Freshness reed at ₹749 for 50ml or ₹1,249 for 130ml, or a SOSA Boond at ₹899 where you want a level you can set. A Vaayu at ₹11,999 for one washroom would be the wrong buy and I will say so on a call.
The short answer
Short answer: of having been cleaned, about ten minutes ago - and nothing more ambitious than that. The direction is a citrus-mint or a clean green, because those read as cleaning where a dry wood reads as furnishing. Get the drains, traps, bins and extract right first, because fragrance is for a clean washroom and never a cover for a dirty one. Then one Morning Freshness reed at ₹749, or a Boond at ₹899 where you want a level you can set.
The pick: one SOSA Morning Freshness reed (₹749 for 50ml, ₹1,249 for 130ml) in the washroom itself - Malabar lemon and mint, unpowered, silent and impossible for anybody to switch off, which in this particular room is a feature. Where you want a level you can set and somebody to own it, a SOSA Boond at ₹899.
Next step: send us the washroom's floor area and ceiling height, tell us whether the extract fan actually runs during service, and we will tell you whether you need a source at all or a housekeeping interval first - Ask for a restaurant scenting plan.
In this guide
The third line is the one people skip, and it is the one that decides whether any of the rest works. A washroom that smells wrong has a cleaning, drain, trap or extraction problem, and fragrance on top of that smells like the problem plus fragrance.
The washroom reed - tap for the specification
Malabar lemon and mint for one washroom
SOSA Morning Freshness reed diffuser ₹749
The register in full, and what to refuse
Best fragrance direction for a premium restaurant washroom
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
What should a luxury restaurant's washroom actually smell like?
Of having been cleaned, about ten minutes ago. That is the entire brief, and I would rather state it that plainly than dress it up, because almost every mistake made in this room comes from trying to make it smell of something more interesting than housekeeping. A washroom is not a room where fragrance is admired - it is a room where a guest reads the building, alone, with nothing else to look at, and what they are reading for is whether somebody has been in here recently with a cloth and a bucket. A citrus-mint delivers that in a way nothing else in my range does. Lemon and mint are the notes people have been cleaning with for a century, so they arrive pre-attached to the idea of a wiped surface, while cedar, pine and sage - which I love, and which I put at your door - read as furnishing rather than as cleaning. That difference is the whole reason this is the one room in a restaurant where a brighter, sharper direction is right and not a compromise. So: Morning Freshness, Malabar lemon and mint, at ₹749 for 50ml or ₹1,249 for 130ml, standing on the counter or a shelf in the room itself. Where you want a level you can set rather than a level the bottle decides, a SOSA Boond at ₹899, which is ultrasonic and rated to about 150 sq ft - comfortably more than most washrooms - and runs roughly six hours a fill, so somebody tops it up once across a long service. A Vaayu at ₹11,999 for one washroom would be the wrong buy, and the only version of this building where it is right is one where the washroom lobby, the corridor and the foyer are a single connected envelope, which is a different post and a different number. Now the concession, and it is the important one. None of this works on a washroom that is not already clean. If the room smells wrong when nobody has used it, you have a dry trap, a failed floor gully, urinal drainage, a bin, or an extract fan that is not running or is not ducted anywhere - and fragrance is never a mask for any of them. The order is source, then cleaning, then extraction and air change, and only then a fragrance source. The diagnostic list is in why a washroom still smells bad after air freshener. And the standing limits hold here as everywhere in a restaurant: this is an ambience decision like lighting, the dining room stays unscented, no source goes anywhere its output can reach a table, and your chef's judgement overrides this plan in their own room. Ask for a restaurant scenting plan and tell us the washroom's dimensions.
It should smell of having been cleaned ten minutes ago, which is a citrus-mint job rather than a woods job. Sort the drains, traps, bins and extract first, then one Morning Freshness reed at ₹749 in the room itself, or a Boond at ₹899 if you want a level you can set. A Vaayu for one washroom is the wrong buy.
For one washroom the source is a Morning Freshness reed - Malabar lemon and mint, alcohol-free and phthalate-free, six fibre reeds flipped weekly, 6-8 weeks from 50ml and 14-18 from 130ml. ₹749 or ₹1,249. Want a level you can set instead? The Boond at ₹899. Not a Vaayu, for one room this size.
See the SOSA Morning Freshness reed diffuser ₹749 Ask for a restaurant scenting plan
The brief for this room, and only this room
Cleaned ten minutes ago - stated in citrus and mint, not in cedar
The source for one washroom
Two honest answers for a room of this size, and the choice between them is about whether you want a level somebody can set or a level nobody can touch. The images link to the product pages so you can read the specification before ordering anything.
One washroom, and nothing for anybody to switch off
SOSA Morning Freshness reed diffuser
Malabar lemon and mint on an alcohol-free, phthalate-free coconut-derived base, six fibre reeds flipped weekly. 50ml runs 6-8 weeks at ₹749, 130ml runs 14-18 at ₹1,249. Continuous, silent, unpowered, and impossible to turn off - which in a washroom that is unattended for hours is precisely what you want.
From ₹749
The same room, but with a level you can set
SOSA Boond
Ultrasonic cool-mist diffuser rated to about 150 sq ft, USB powered, roughly six hours a fill. ₹899. Buy this instead of a reed when you want intensity you control and somebody who will top it up during a long service. Hotel Collection oils are ultrasonic and suit it; they are never a Vaayu refill.
From ₹899
The three things to get right, in order
The order matters more than the fragrance does. Two of these three happen before you buy anything from anybody, and skipping them is why so many expensive washrooms smell of a product rather than of a clean room.
1
Start with the room, not the scent
If it smells wrong empty, no fragrance we sell will help
Walk into the washroom at eleven in the morning, before service, when nobody has used it since last night. If there is a smell then, it is coming from the building rather than from traffic: a dry trap in a floor gully or a rarely-used basin, urinal drainage, a bin that is emptied but not washed, or an extract fan that is switched off or ducted into a ceiling void. Those are the operator's questions for their plumber and their ventilation contractor, not mine - I can describe the mechanism and tell you what to ask, and I will not give plumbing or health-department advice. Nothing I sell covers, removes or cancels another smell, and we sell no extractor, no purifier and no deodoriser.
Tip: Ask housekeeping whether the cleaning routine touches drains, or only surfaces. It is usually only surfaces.
One Morning Freshness reed diffuser ₹749, set once and left alone, is the whole hardware side of this.
See SOSA Morning Freshness reed diffuser →
2
Then pick the direction, and be strict
Bright and clean - citrus-mint or a clean green, and nothing else
The register for this room is narrow on purpose. A citrus-mint or a clean green is right. A floral-sweet is wrong because it sits on top of everything else in the room rather than reading as clean. A gourmand is doubly wrong in a restaurant: our own Fresh Brew at ₹849 is exactly what not to buy here, because coffee anywhere in a restaurant sends a guest looking for a dessert that is not on your menu. A heavy wood is too slow and too soft for a room this small and this busy. And the aggressive blue-chemical note that commercial washroom products use is the worst of the lot, because it announces that a product was applied rather than that a room was cleaned.
Tip: If a guest can name the fragrance before they can tell the room is clean, the direction is wrong.
One Morning Freshness reed diffuser ₹749, set once and left alone, is the whole hardware side of this.
See SOSA Morning Freshness reed diffuser →
3
Then size the source down, not up
A washroom is a small volume, so a small continuous source wins
Do the arithmetic out loud, because it argues against spending. A 60 sq ft washroom at a 3m ceiling is about 5.5m³ of air, and a generous 120 sq ft one is about 11m³. A Vaayu is rated to 1000m³, so putting one in a single washroom is buying roughly a hundred times the capacity you need and then hunting for the bottom of its range. A reed at ₹749 or a Boond at ₹899 is the honest answer, and the only building where the Vaayu earns its place is one where the washroom lobby, the corridor and the foyer are a single connected envelope.
Tip: Measure the cubic volume once and write it on the back of the door. Every future decision about this room refers to it.
The SOSA principle
A washroom is not a room where fragrance is admired - it is a room where a guest is quietly looking for evidence that somebody cleaned it, and citrus-mint is the only part of my range that says so.
Which is why this one room gets a brighter direction than the front door, on purpose.
The washroom brief, line by line
Here is the brief as I would write it for a manager who has to hand this room to a cleaner and a host every evening.
The SOSA plan
What a luxury restaurant washroom should and should not smell of
| The line | What to do |
|---|---|
|
The message
|
Cleaned, recently. Not perfumed, not scented, not signature. A guest should register the room as looked-after and then stop thinking about it, which is the highest compliment a washroom can be paid. |
|
The direction
|
A citrus-mint or a clean green. Lemon and mint carry a century of association with cleaning, which is exactly the shortcut you want in this room and nowhere else in the building. |
|
Ruled out
|
Floral-sweet, gourmand of any kind - Fresh Brew ₹849 included and especially in a restaurant - heavy woods, ambers, and the sharp blue-chemical note of commercial washroom products. |
|
The source
|
Small and continuous. A ₹749 reed in the room, or a ₹899 Boond where you want a level you can set. A Vaayu at ₹11,999 for one washroom is the wrong buy. |
|
Before any of it
|
Drains, traps, urinal drainage, bins and an extract fan that actually runs. Fragrance is for a clean washroom and is never a cover for a dirty one. |
|
Still unscented
|
The dining room, the chef's table, any tasting-menu room and the pass - and no source placed anywhere its output can reach a table. |
If your washroom smells wrong when it is empty, stop here and read why a washroom still smells bad after adding air freshener, which is a flat no on fragrance and then the real list of causes. And once the room is genuinely clean and you want the whole restaurant plan in one page - two zones, two profiles and a dining room nobody touches - it is set out in scenting the entrance and washrooms while leaving the dining areas neutral. SOSA is independent and not affiliated with any hotel.
Small room, small source, clear message
Morning Freshness ₹749 is Malabar lemon and mint - the one direction in my range that reads as cleaned rather than as furnished.
The best washroom I have ever walked into smelled of lemon and of nothing else, and I only noticed it afterwards, which is exactly how much attention that room is entitled to.
— Sonal Sahani, SOSA
Why a reed suits this particular room
Continuous, silent, unpowered - and nobody can switch it off at nine
The SOSA washroom specification
Three products cover almost every restaurant washroom in the country, and the right one is decided by the room's cubic volume and by whether anybody will own the setting. Hotel Collection oils are ultrasonic only and are never a Vaayu refill, and cold-air refill oil for the Vaayu is not currently sold separately, so the 4 × 100ml it ships with runs 90+ days a fill and further supply should be confirmed with SOSA in writing. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA restaurant specification
Citrus-mint, a small continuous source, and the arithmetic done downwards
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Morning Freshness reed diffuser
|
One washroom, unattended for long stretches | Malabar lemon and mint, the direction that reads as cleaned. 50ml at ₹749 runs 6-8 weeks, 130ml at ₹1,249 runs 14-18, and there is no plug and no setting for a cleaner to change | ₹749 View → |
|
SOSA Boond
|
One washroom where you want a level you can set | Ultrasonic, about 150 sq ft, USB, roughly six hours a fill at ₹899. Somebody has to own the top-up across a twelve-hour service, and that is the trade against a reed | ₹899 View → |
 SOSA Sukoon
|
A washroom plus its lobby behaving as one small volume | 270-320 sq ft with three 15ml fragrances included, at ₹1,899. This is as far up the ladder as one washroom should ever push you | ₹1,899 View → |
Take the direction from the message the room is sending rather than from the foyer's palette, size the source to the washroom's cubic volume, and fix the room before you scent it. Ambient fragrance here is an ambience decision like lighting; it is never a mask for a drain, a trap, a bin or a failed extract; and the dining room, the chef's table, any tasting-menu room and the pass stay unscented, with no source placed where its output can reach a table. I will not describe any fragrance as food-safe or safe around food, because we have not tested for that and will not imply it, and drainage, ventilation and anything sited near a food-preparation area are questions for you, your consultant and your local authority rather than for me. Fragrance oil is flammable, so keep oil, reeds and machine away from open flame and heat. And I will not advise on ingredient sensitivity or anybody's health: if a guest says a room is too strong, turn it down or take the source out and move it. Ask for a restaurant scenting plan before you spend anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The question I am asked is what a luxury washroom should smell like, and the answer people expect is the name of a fragrance. It is not a fragrance question at heart. I have walked into restaurants with a beautiful dining room and a washroom that smelled of a product somebody sprayed at six o'clock, and the room did not read as clean - it read as covered. So I answer it the other way round now. Decide what you want the guest to conclude, which is that somebody cleaned this room recently, and then choose the shortest route to that conclusion.
The shortest route is citrus and mint. That is not a fashionable answer and it is not the answer a perfumer's vanity would give, but lemon and mint have been on the side of cleaning products for a hundred years and they arrive already meaning something. Cedar, pine and sage - which are my favourite things to compose with and which I put at your front door - mean considered, furnished, quiet. They do not mean cleaned, and in this one room that is the only meaning worth having. So the washroom gets a brighter, sharper direction than the foyer does, deliberately, and I would rather explain why than pretend the building takes one note throughout.
On hardware I would rather undersell. One washroom is a Morning Freshness reed at ₹749, or a Boond at ₹899 if you want a level you can set. A washroom with its own lobby is a Sukoon at ₹1,899. A Vaayu at ₹11,999 belongs to a connected envelope of foyer, corridor and washroom lobby, and buying one for a single washroom is the wrong buy. And if the room still smells when it is empty, buy none of them yet. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
What should a luxury restaurant washroom smell like?
Of having been cleaned, about ten minutes ago, and nothing more ambitious than that. The direction is a citrus-mint or a clean green, because lemon and mint read as cleaning while dry woods read as furnishing. Get the drains, traps, urinal drainage, bins and extract fan right first, because fragrance is for a clean washroom and never a cover for a dirty one. Then one Morning Freshness reed at Rs 749, or a Boond at Rs 899 where you want a level you can set.
Why not use the same fragrance as the restaurant entrance?
Because the two rooms are doing different jobs. The foyer is saying this is a considered building, which dry cedar, pine and sage say well. The washroom is saying this room was cleaned, which a wood cannot say. So the washroom takes a brighter citrus-mint on purpose, and it is the one intentional two-profile plan I recommend in a restaurant. The two rooms are almost never in the same air anyway, so a guest meets them in sequence rather than side by side.
Do I need a machine for one washroom?
Usually not. A 60 sq ft washroom at 3m is about 5.5m3 of air, and a Vaayu is rated to 1000m3, so for one washroom it would be the wrong buy by a wide margin. A Morning Freshness reed at Rs 749 for 50ml or Rs 1,249 for 130ml is the honest source, and a Boond at Rs 899 is the answer if you want a level you can set. A Vaayu earns its place only when the washroom lobby, corridor and foyer are one connected envelope.
Which directions should a restaurant washroom never use?
Anything floral-sweet, anything gourmand, any heavy wood or amber, and the sharp blue-chemical note that commercial washroom products use. Gourmand is doubly wrong in a restaurant: our own Fresh Brew at Rs 849 is exactly what not to buy, because coffee anywhere in a restaurant sends a guest looking for a dessert that is not on the menu. Nothing edible belongs in a restaurant's air - no vanilla, bakery, caramel, chocolate, honey, cinnamon or warm spice.
My washroom smells even when nobody has used it. What then?
Then it is the building rather than the traffic, and fragrance is not the answer at any dose. Look at dry traps in floor gullies and rarely-used basins, urinal drainage, bins that are emptied but not washed, and an extract fan that is switched off or not ducted anywhere. Those are questions for your plumber and ventilation contractor. Fragrance is never a mask, and SOSA sells no extractor, no purifier and no deodoriser. Fix the room, then scent it.
Cleaned ten minutes ago - that is the whole brief
SOSA — Clinic Scenting for fine-dining restaurants and restaurant groups
The SOSA Morning Freshness reed (₹749 for 50ml, ₹1,249 for 130ml) is Malabar lemon and mint - the direction that reads as cleaned rather than as furnished - for one washroom; a Boond at ₹899 gives you a level you can set, and a washroom with its own lobby is a Sukoon at ₹1,899. A Vaayu at ₹11,999 belongs to a connected foyer-and-corridor envelope, not to one washroom. Alcohol-free, phthalate-free, made in India, and a portion of every order supports girl-child education through Nanhi Kali. Send us the washroom's dimensions and whether the extract runs, and we will tell you what to do first.
Ask for a restaurant scenting plan → SOSA Morning Freshness reed diffuser · ₹749
One more look at the Morning Freshness reed diffuser
Continue the read
More from SOSA
- SOSA Morning Freshness reed diffuser - the citrus-mint reed for one restaurant washroom, unpowered and always on (₹749)
- Should fine-dining restaurant washrooms have a signature fragrance?
- Reed diffusers vs automatic scenting for restaurant washrooms
- Ask us: Ask for a restaurant scenting plan
- Brand: Founder story — why SOSA exists
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.