★ SOSA for Fine-Dining Restaurants and Restaurant Groups
Citrus-mint or a clean green, and then four refusals that matter more than the choice: never floral-sweet, never gourmand, never a heavy wood, and never the aggressive blue-chemical note of commercial washroom products
★ ★ ★ ★ ★
★★★★★
"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
★★★★★
"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
★ The register this room actually wants
SOSA Morning Freshness reed diffuserMalabar lemon and mint - bright, dry, not foodView ₹749SOSA Morning Freshness reed diffuserClean green is the only other right answerView ₹749SOSA Morning Freshness reed diffuser₹749 for 50ml, ₹1,249 for 130mlView ₹749
✓ Malabar lemon and mint on an alcohol-free, phthalate-free coconut-derived base - bright, dry and unmistakably inedible, which matters more in a restaurant than anywhere else we sell ✓ Nothing gourmand anywhere in a restaurant: no vanilla, bakery, caramel, chocolate, honey, cinnamon or warm spice, and Fresh Brew ₹849 is named and ruled out ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
What should a restaurant washroom never smell of? Four refusals. Never floral-sweet, which sits on top of a room rather than reading as clean. Never gourmand - no vanilla, bakery, caramel, chocolate, honey, cinnamon or warm spice - because in a restaurant an edible note competes with your menu and confuses a guest about what is cooking. Never a heavy wood, amber or oud, which are too slow and too soft for a small busy room. And never the aggressive blue-chemical note that commercial washroom products use.
What do I buy, and what does it cost? A small source, because this is a small volume. Morning Freshness is our Malabar lemon and mint, at ₹749 for 50ml or ₹1,249 for 130ml, and it is the direction this room wants. Where you want a level you can set, a SOSA Boond at ₹899. A Vaayu at ₹11,999 would be the wrong buy for one washroom - a 60 sq ft room at 3m is under 6m³ and the machine is rated to 1000m³.
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.
This is the shortest brief I write for any room in a building, and the one I get argued with most. A premium washroom wants a citrus-mint or a clean green, and that is the whole list. Almost every conversation I have about this room is not about which of those two to pick - it is about talking somebody out of the third thing they had in mind.
Quick answers — read this first
What is the best fragrance direction for a premium restaurant washroom? A citrus-mint, or failing that a clean green - a dry, bright, slightly sharp direction that reads as cleaning rather than as perfume. Lemon and mint carry a century of association with a wiped surface, and that association is the entire value of a fragrance in this room. A clean green - crushed leaf, vetiver kept dry, a herbal note without sweetness - is the acceptable alternative where you want something quieter. Everything else on the shelf is wrong here for a specific reason, and the reasons are worth knowing.What should a restaurant washroom never smell of? Four refusals. Never floral-sweet, which sits on top of a room rather than reading as clean. Never gourmand - no vanilla, bakery, caramel, chocolate, honey, cinnamon or warm spice - because in a restaurant an edible note competes with your menu and confuses a guest about what is cooking. Never a heavy wood, amber or oud, which are too slow and too soft for a small busy room. And never the aggressive blue-chemical note that commercial washroom products use.
What do I buy, and what does it cost? A small source, because this is a small volume. Morning Freshness is our Malabar lemon and mint, at ₹749 for 50ml or ₹1,249 for 130ml, and it is the direction this room wants. Where you want a level you can set, a SOSA Boond at ₹899. A Vaayu at ₹11,999 would be the wrong buy for one washroom - a 60 sq ft room at 3m is under 6m³ and the machine is rated to 1000m³.
The short answer
Short answer: a citrus-mint, or a clean green as the quieter alternative. Nothing else belongs in this room. The four refusals do more work than the choice: never floral-sweet, never gourmand of any kind (our own Fresh Brew at ₹849 is ruled out by name, because coffee in a restaurant makes a guest look for a dessert that is not on the menu), never a heavy wood or amber, and never the aggressive blue-chemical note of commercial washroom products.
The pick: SOSA Morning Freshness (₹749 for 50ml, ₹1,249 for 130ml) - Malabar lemon and mint, alcohol-free and phthalate-free, which is exactly the citrus-mint this room asks for. Where you want a level you can set rather than a level the bottle decides, the same direction in a SOSA Boond at ₹899.
Next step: tell us what fragrance is in the washroom now and what the cleaning team sprays at handover, and we will tell you plainly whether the direction is wrong, the level is wrong, or the room is not clean yet - Ask for a restaurant scenting plan.
In this guide
Three of those five lines are refusals, and that is the honest proportion. Choosing between a citrus-mint and a clean green takes a minute. Not choosing the wrong thing is where the work is.
The citrus-mint reed - tap for the specification
Malabar lemon and mint, the direction this room wants
SOSA Morning Freshness reed diffuser ₹749
The message this register is carrying
What should a luxury restaurant washroom smell like?
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
What is the best fragrance direction for a premium restaurant washroom?
A citrus-mint, or a clean green if you want something quieter, and nothing else. That is a narrower brief than I give any other room in a building, and the narrowness is deliberate. A washroom fragrance has exactly one job, which is to read as cleaning rather than as perfume - and lemon and mint are the notes that carry that meaning in this country and most others, because they have been on the side of cleaning products for a century. The association is not perfumery, it is shorthand, and shorthand is precisely what a guest in a small room for ninety seconds can use. So Morning Freshness, Malabar lemon and mint, at ₹749 for 50ml or ₹1,249 for 130ml, or a SOSA Boond at ₹899 if you want a level you can set. A clean green is the acceptable alternative - crushed leaf, a dry herbal, vetiver kept firmly on the mineral side - and in a restaurant whose foyer is already green it can make the building feel of one piece without repeating the foyer note. Now the four refusals, which do more work than the choice does. Never floral-sweet. A sweet floral in a washroom sits visibly on top of whatever else is in the room, and a guest reads that layering instantly and correctly as a cover rather than a clean. Never gourmand, in any restaurant, anywhere. No vanilla, bakery, caramel, chocolate, honey, cinnamon or warm spice - and our own Fresh Brew at ₹849 is ruled out by name, which costs me a sale and is still the right advice: coffee anywhere in a restaurant sends a guest looking for a dessert that is not on your menu, and in a washroom an edible note is worse again, for reasons I would rather leave to the reader's imagination than spell out. Never a heavy wood, amber or oud. They are slow, soft and enveloping, which is right for a hotel corridor and wrong for a small room with two hundred people through it in an evening, where you want something that reads immediately and clears quickly. And never the aggressive blue-chemical note that most commercial washroom products use, because it announces that a product was applied rather than that a room was cleaned, and a guest in a premium restaurant knows the difference. The concession, which matters more than any of this: the direction only works on a washroom that is genuinely clean. Fragrance is never a mask for a dry trap, a drain, urinal drainage, a bin or a failed extract - the order is source, cleaning, extraction and air change, then fragrance. This is an ambience decision like lighting, and the dining room, the chef's table and the pass stay unscented, with no source anywhere its output can reach a table. Ask for a restaurant scenting plan and tell us what is in there now.
Citrus-mint first, a clean green second, and nothing else. Never floral-sweet, never gourmand - Fresh Brew ₹849 included - never a heavy wood, and never the blue-chemical note of commercial washroom products. Morning Freshness at ₹749, a Boond at ₹899 if you want a dial, and a Vaayu would be the wrong buy for one washroom.
The direction in a bottle: Morning Freshness - Malabar lemon and mint, alcohol-free and phthalate-free on a coconut-derived base, six fibre reeds flipped weekly, 6-8 weeks from 50ml. ₹749 or ₹1,249. Want the same direction with a dial? The Boond at ₹899. Not a Vaayu, for a room this size.
See the SOSA Morning Freshness reed diffuser ₹749 Ask for a restaurant scenting plan
The register, and the refusals
Bright, dry and clearly not food - because this room is saying cleaned
The citrus-mint source for this room
The direction is the decision; the format is secondary and depends only on whether you want a level you can set. The images link to the product pages so you can read the specification before ordering anything.
The direction this room asks for
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. Bright, dry and unmistakably inedible, which is the property that matters most in a restaurant and least in a house.
From ₹749
Same direction, 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, at ₹899. Ample for one washroom. Hotel Collection oils at ₹299, ₹999 and ₹1,799 are ultrasonic and suit it; they are never a Vaayu refill, in any post and in any plan.
From ₹899
The four refusals, and why each one fails
The choice takes a minute. The refusals are where the judgement is, so here they are with the mechanism attached to each rather than as a list of taboos.
1
Refuse the sweet and the floral
A sweet floral reads as a layer, and a layer reads as a cover
The problem with a sweet floral in a washroom is not that it smells bad - it is that it does not blend with anything. It sits on top of the room as a distinct second thing, and a guest's nose separates the two instantly and draws the obvious conclusion: something was applied on top of something. A citrus-mint does not read that way, because cleaning is already the room's subject and the note agrees with it. Powdery musks fail for the same reason and add a dated register that a premium room cannot carry. If you want the room quieter, go greener, not sweeter.
Tip: If you can perceive two things when you open the door, the fragrance is the wrong one or the room is not clean.
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
Refuse everything edible, twice over
In a restaurant a gourmand note competes with your own menu
In a house a vanilla is harmless. In a restaurant it is a competitor, because every smell inside your building is being read by a guest as information about food. Our own Fresh Brew at ₹849 is ruled out by name, and it is the single worst call available in a restaurant: coffee sends a guest looking for a dessert that is not on the menu, and it does it at the door, in the corridor and in the washroom equally. The same goes for bakery, caramel, chocolate, honey, cinnamon and warm spice. And I will not call any fragrance food-safe or safe around food, because we have not tested for that and will not imply it - keeping sources out of food areas entirely is how we sidestep the question.
Tip: Read your washroom fragrance's name out loud. If it belongs on a dessert menu, it does not belong in your building.
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
Refuse the heavy wood and the blue-chemical
One is too slow for the room, the other announces a product
A heavy wood, amber or oud is soft and enveloping and takes its time, which is exactly what a hotel corridor wants and exactly what a 6m³ room with two hundred visits in an evening does not. You want a note that reads the moment the door opens and clears between guests rather than accumulating. The blue-chemical note used by most commercial washroom products fails differently and worse: it is engineered to be recognised, and what it is recognised as is a product. A guest who meets it concludes that a washroom was treated. A guest who meets lemon and mint concludes that a washroom was cleaned. In a premium restaurant that difference is the whole point.
Tip: Ask your housekeeping supplier what they spray at handover. It is often the loudest thing in the room.
The SOSA principle
A washroom fragrance has one job - to read as cleaning rather than as perfume - which is why the register is narrow and the refusals matter more than the choice.
Three of the five lines in this brief are things not to buy, and I would rather write those than sell you one of them.
The register, written as a brief
Print this and hand it to whoever is buying the consumable, because the consumable is where the plan usually goes wrong.
The SOSA plan
The fragrance direction for a premium restaurant washroom
| The direction | What to do |
|---|---|
|
Citrus-mint - yes
|
The first answer. Lemon and mint read as a wiped surface, which is the only meaning worth having in this room. Bright, dry, clears between guests. Morning Freshness at ₹749 is ours. |
|
A clean green - yes
|
The quieter alternative: crushed leaf, a dry herbal, vetiver kept mineral. Useful where the foyer is already green and you want the building to feel of one piece without repeating the note. |
|
Floral-sweet - no
|
It sits on top of the room as a separate layer, and a guest reads a layer as a cover rather than as a clean. Powdery musks fail the same way and date the room. |
|
Gourmand - no, emphatically
|
Nothing edible anywhere in a restaurant. Fresh Brew ₹849 is ruled out by name, along with vanilla, bakery, caramel, chocolate, honey, cinnamon and warm spice. |
|
Heavy wood, amber, oud - no
|
Too slow and too soft for a small room with heavy traffic. They accumulate rather than clear. Keep dry cedar, pine and sage for the foyer, where they are right. |
|
The blue-chemical note - no
|
It announces that a product was applied rather than that a room was cleaned, and in a premium restaurant a guest knows the difference immediately. |
If the room still smells wrong with the right fragrance in it, the fragrance is not the variable and the list of real causes is in why a washroom still smells bad after adding air freshener. And if you are wondering whether this register should match your front door, the answer is deliberately not, and the reasoning is in whether washroom fragrance should differ from the entrance scent. SOSA is independent and not affiliated with any hotel.
One job: read as cleaning, not as perfume
Morning Freshness ₹749 is Malabar lemon and mint - the one direction in my range that means a wiped surface rather than a furnished room.
I am ruling out one of my own bottles by name in this post, and I would rather do that than have a guest in your washroom wondering which dessert the coffee is coming from.
— Sonal Sahani, SOSA
Why the format is the easy part
Get the direction right and a ₹749 bottle does the job
The SOSA washroom specification
The direction decides the plan and the format follows it, so start with the register and pick the hardware afterwards. Hotel Collection oils at ₹299, ₹999 and ₹1,799 are ultrasonic only and are never a Vaayu refill, and our jar candles at ₹379 and ₹449 are scented - which makes a washroom or a lounge the right place for them and a dining table the worst place in the building. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA restaurant specification
Citrus-mint, a clean green, and a format chosen afterwards
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Morning Freshness reed diffuser
|
The direction, in the room, with nothing to switch off | Malabar lemon and mint at ₹749 for 50ml or ₹1,249 for 130ml. Bright, dry and clearly not food, which matters more in a restaurant than in any other building we sell into | ₹749 View → |
|
SOSA Boond
|
The same direction with 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 long service, and if nobody will, buy the reed | ₹899 View → |
 SOSA Sukoon
|
A washroom and its lobby as one small volume | 270-320 sq ft with three 15ml fragrances included at ₹1,899. As far up the ladder as one washroom should ever take you, and a Vaayu at ₹11,999 would be the wrong buy | ₹1,899 View → |
Choose the direction before the format, keep the register narrow, and remember that the consumable is where a good plan usually comes apart six months later. This 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, candles 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 move the source. Ask for a restaurant scenting plan before you spend anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The question arrives as a shortlist. Somebody sends me three fragrances they are considering for the washrooms of a restaurant they have spent two years building, and two of the three are wrong in a way that has nothing to do with quality. They are lovely compositions in the wrong room. So I have stopped answering with a recommendation and started answering with the job: this room has to read as cleaned, and the only question about any bottle is whether it says that.
Lemon and mint say it. They say it because the whole country has been cleaning with them for a hundred years, and an association that old is not something a perfumer can improve on - it can only be used. A clean green says it more quietly, which is useful in a restaurant whose door is already green. Everything else fails for a reason I can name. Sweet florals layer. Gourmands compete with your menu, and I will rule out my own Fresh Brew at ₹849 in writing rather than let a guest in your washroom wonder where the coffee is coming from. Heavy woods are too slow for a small busy room. And the blue-chemical note of commercial washroom products tells a guest a product was applied, which is the opposite of the message.
On hardware I would rather undersell. The direction is the decision and a Morning Freshness reed at ₹749 delivers it with no plug and nothing to change. A Boond at ₹899 gives you a level you can set, and a washroom with a lobby is a Sukoon at ₹1,899. A Vaayu at ₹11,999 belongs to a connected foyer-and-corridor envelope, and for one washroom it would be the wrong buy. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
What is the best fragrance direction for a premium restaurant washroom?
A citrus-mint, or a clean green if you want it quieter. Lemon and mint read as a wiped surface, which is the only meaning worth carrying in this room, and a dry green - crushed leaf, a herbal note, vetiver kept mineral - is the acceptable alternative. Morning Freshness at Rs 749 for 50ml or Rs 1,249 for 130ml is ours. The direction only works on a washroom that is already clean, so drains, traps, bins and a working extract come first.
Why not a floral or a sweet fragrance in a washroom?
Because a sweet floral does not blend with a room, it sits on top of it. A guest's nose separates the two instantly and reads the layering as something applied over something, which is the opposite of the message you want. Powdery musks fail the same way and date the room as well. If you want the washroom quieter than a citrus-mint, go greener rather than sweeter - a dry herbal or a crushed-leaf note holds the same meaning at a lower volume.
Can a restaurant washroom have a coffee or vanilla fragrance?
No, and this is the firmest no in the register. Nothing edible belongs anywhere in a restaurant, because every smell inside the building is read by a guest as information about food. Our own Fresh Brew at Rs 849 is ruled out by name: coffee sends a guest looking for a dessert that is not on the menu. The same applies to vanilla, bakery, caramel, chocolate, honey, cinnamon and warm spice, at the door, in the corridor and in the washroom.
What is wrong with normal commercial washroom fragrance?
The aggressive blue-chemical note most of it uses is engineered to be recognised, and what a guest recognises is a product rather than a clean room. In a premium restaurant that difference is the whole point of bothering. It is also usually applied as a spray at handover, which is a dose rather than a level: strong for ten minutes, gone in thirty, and doing nothing at all by the second sitting. A low continuous source is the better format.
Do I need a machine, or is a reed enough?
For one washroom a reed is usually enough, and it has the advantage that nobody can switch it off. Morning Freshness is Rs 749 for 50ml, which runs 6 to 8 weeks, or Rs 1,249 for 130ml, which runs 14 to 18. A Boond at Rs 899 gives you a level you can set if somebody will own the top-up, and a washroom with its own lobby is a Sukoon at Rs 1,899. A Vaayu at Rs 11,999 would be the wrong buy for one washroom.
Citrus-mint, a clean green, and four firm refusals
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 - bright, dry and unmistakably inedible, which is the register a premium washroom actually wants. A Boond at ₹899 gives the same direction with 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 rather than one washroom. Alcohol-free, phthalate-free, made in India, and a portion of every order supports girl-child education through Nanhi Kali. Tell us what is in the room now and we will tell you whether to change the fragrance, the level or the cleaning routine.
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 register for a premium restaurant washroom, in a bottle with no off switch (₹749)
- How do I keep a high-traffic restaurant washroom smelling pleasant all evening?
- 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.