★ SOSA for Fine-Dining Restaurants and Restaurant Groups
Yes - and the mechanism is inference: the washroom is the one room a guest is allowed into that tells them something about the kitchen they will never be allowed into
★ ★ ★ ★ ★
★★★★★
"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
★★★★★
"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 source for a washroom that is already clean
SOSA Morning Freshness reed diffuserCleaned, recently - that is the inference you wantView ₹749SOSA Morning Freshness reed diffuserMalabar lemon and mint at ₹749View ₹749SOSA Morning Freshness reed diffuserAnd the cleaning interval does the real workView ₹749
✓ Malabar lemon and mint, alcohol-free and phthalate-free - a low continuous source for a washroom that is genuinely clean, and nothing that pretends to be a substitute for cleaning it ✓ SOSA sells no extractor, no purifier and no deodoriser, and publishes no business-outcome number because it has not measured one ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
Is that fair? The washroom and the kitchen are different rooms. It is not fair, and it is entirely reasonable. A guest has no other data. They cannot see your walk-in, your prep benches or your drainage, so they use the one sample you have given them and generalise from it - which is what any of us would do. The inference runs from the room they can check to the rooms they cannot, and it runs in one direction only: a clean washroom does not prove a clean kitchen, but a smelly one is taken as proof of the opposite.
So is the answer fragrance? No. The answer is the cause, and fragrance comes last. If a washroom smells 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 - and fragrance over any of those is the problem plus fragrance, which reads worse than either. Once the room is genuinely clean, a Morning Freshness reed at ₹749 is what a clean room wears.
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.
A chef I spoke to years ago said something I have repeated ever since: a guest cannot see my kitchen, so they judge it by the only back-of-house room I let them walk into. He was talking about his washroom. He was also, without meaning to, describing the most important sensory decision in his building.
Quick answers — read this first
Can a bad-smelling washroom really undo a premium restaurant experience? Yes, and not because it is unpleasant for the thirty seconds it lasts. It is because of what a guest does with the information. A washroom is the only back-of-house-adjacent room a guest is allowed into, and it is the one place they can check a building's housekeeping for themselves. A bad smell there is not read as a bad smell - it is read as evidence, and the thing it is evidence about is the kitchen, which they will never be allowed to inspect.Is that fair? The washroom and the kitchen are different rooms. It is not fair, and it is entirely reasonable. A guest has no other data. They cannot see your walk-in, your prep benches or your drainage, so they use the one sample you have given them and generalise from it - which is what any of us would do. The inference runs from the room they can check to the rooms they cannot, and it runs in one direction only: a clean washroom does not prove a clean kitchen, but a smelly one is taken as proof of the opposite.
So is the answer fragrance? No. The answer is the cause, and fragrance comes last. If a washroom smells 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 - and fragrance over any of those is the problem plus fragrance, which reads worse than either. Once the room is genuinely clean, a Morning Freshness reed at ₹749 is what a clean room wears.
The short answer
Short answer: yes, and the mechanism is inference rather than offence. The washroom is the one room next to your back of house that a guest is allowed into, so they use it as their only sample of how the building is kept and generalise from it to the kitchen they will never see. Which means the answer is the cause - traps, drains, bins, extraction and a cleaning interval - and fragrance is what a clean room wears afterwards, never a substitute for it.
The pick: nothing, until the room is genuinely clean. After that, one SOSA Morning Freshness reed (₹749 for 50ml, ₹1,249 for 130ml) in the room - Malabar lemon and mint, continuous, unpowered and impossible to switch off - or a SOSA Boond at ₹899 where you want a level you can set.
Next step: walk into your own washroom at eleven in the morning before service, tell us what you smell and whether the extract fan is running, and we will tell you whether this is a cleaning problem, a drainage problem or a fragrance question - Ask for a restaurant scenting plan.
In this guide
The middle line is the one that makes this room matter out of all proportion to its size. A guest is not marking your washroom. They are using it as the only sample they have of how your building is kept.
What a clean washroom wears - tap for the specification
Malabar lemon and mint for a washroom that is already right
SOSA Morning Freshness reed diffuser ₹749
If the smell is still there, start here
Why does my restaurant washroom still smell bad after adding air freshener?
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
Why can a bad-smelling washroom undo an otherwise premium restaurant experience?
Because of what a guest does with the information, rather than because of the thirty seconds of unpleasantness. Here is the mechanism, and it is the whole post: the washroom is the only room adjoining your back of house that a guest is ever allowed to walk into alone. They will never see your walk-in, your prep benches, your drainage runs or your bin store. They have been invited into precisely one room where a building's housekeeping is visible and checkable, and they check it - not consciously, not as an audit, but the way any of us reads a room we are standing in. So a smell in that room is not filed as a smell. It is filed as evidence, and the thing it is taken as evidence about is the kitchen, which is the one part of your building the guest cares most about and can least inspect. The inference is not fair, and it is entirely reasonable, because it is the only inference available: a clean washroom does not prove a clean kitchen, but a badly-kept one is read as proof of the opposite, and it runs in that one direction. That asymmetry is why this small room carries weight out of all proportion to its floor area, and why I will not pretend a fragrance is the answer to it. The answer is the cause. If the room smells when nobody has used it, the building is producing it: a dry trap in a floor gully or a rarely-used basin, urinal drainage, a bin that is emptied but never washed, or an extract fan that is switched off, undersized or ducted into a ceiling void. Those are questions for you, your plumber and your ventilation contractor - I can describe the mechanism and tell you what to ask, and I will not give plumbing, drainage or health-department advice. If the room only smells at the busiest hour, the variable is traffic and the answer is a housekeeping interval rather than a stronger source. Fragrance is never a mask for any of it, and two smells in one small airspace combine rather than cancel, which a guest reads instantly as somebody having tried. Once the room is genuinely clean, fragrance is worth having, because it is what a clean room wears - a Morning Freshness reed at ₹749 for 50ml or ₹1,249 for 130ml, citrus-mint because that reads as cleaned, 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 the honest limit on this whole argument: I am describing what a guest infers, not what they do next. SOSA does not publish a business-outcome number because it has not measured one - no covers, no table turns, no spend per head, no ratings, no bookings. This is an ambience decision like lighting, and the dining room, the chef's table and the pass stay unscented. Ask for a restaurant scenting plan and tell us what the room smells like empty.
Yes, and the mechanism is inference: it is the only room next to your back of house that a guest is allowed into, so they read it as evidence about a kitchen they will never see. Fix the cause - traps, drains, bins, extract, cleaning interval - and then treat a ₹749 reed as what a clean room wears rather than as a solution.
Once the room is right, what a clean washroom wears is a Morning Freshness reed - Malabar lemon and mint, continuous and unpowered, six fibre reeds flipped weekly, 6-8 weeks from 50ml. ₹749 or ₹1,249. A Boond at ₹899 if you want a dial. A Vaayu for one washroom is the wrong buy.
See the SOSA Morning Freshness reed diffuser ₹749 Ask for a restaurant scenting plan
The mechanism, in one line
The room they can check stands in for the rooms they cannot
What a clean washroom wears
Nothing on this page is a solution to a smell. These are what a room that is already clean wears, and the choice between them is only about whether you want a level somebody can set. The images link to the product pages.
For a washroom that is genuinely clean
SOSA Morning Freshness reed diffuser
Malabar lemon and mint on an alcohol-free, phthalate-free coconut-derived base, six fibre reeds flipped weekly. ₹749 for 50ml, which runs 6-8 weeks, or ₹1,249 for 130ml, which runs 14-18. Citrus-mint because it reads as cleaned, which is the inference this room should be supporting rather than contradicting.
From ₹749
The same job, with a level you can set
SOSA Boond
Ultrasonic cool-mist diffuser rated to about 150 sq ft, USB, roughly six hours a fill, at ₹899. Ample for one washroom. It needs somebody to own the top-up during a long service, which is the trade against a reed - and if nobody will own it, the reed is the more honest purchase.
From ₹899
How the inference actually works
Three steps, and they happen in the guest's head in under a second. Understanding them is what stops an operator reaching for a stronger air freshener, which is the instinctive and wrong response.
1
Recognise what the room is being used for
It is the only sample of your housekeeping a guest is given
Your kitchen is invisible and always will be. Your prep, your cold chain, your drainage and your bin store are all beyond the guest's reach, and a menu cannot vouch for any of them. Then you invite them, alone, into a small tiled room with a drain in the floor and ask them to spend a minute and a half there. Whatever they find, they will use, because it is the only sample of your building's upkeep they have been offered. That is not a criticism of guests. It is a description of what happens when somebody has one data point and a question they care about.
Tip: Walk in at eleven in the morning, before service and before the cleaner's second round. That is the honest nose in the 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 →
2
Understand which way it runs
A clean washroom proves nothing - a bad one is taken as proof
The inference is asymmetric, and knowing that is useful. A spotless washroom does not persuade anybody that the kitchen is spotless; it simply removes the question, which is all you want from this room. A washroom that smells does the opposite and does it hard: it supplies an answer to a question the guest had not consciously asked, and the answer is about the kitchen. So the goal here is not to impress. It is to remove the question, and a room that smells of nothing but a clean surface removes it completely. That is why restraint beats ambition in this room, and why a louder fragrance makes things worse rather than better.
Tip: The highest compliment this room can be paid is that a guest cannot remember it afterwards.
3
Then fix the cause, in this order
Source, cleaning, extraction and interval - and fragrance last
If the room smells empty, look at traps that have dried out in floor gullies and rarely-used basins, urinal drainage, bins that are emptied but not washed, and an extract fan that is switched off, undersized or ducted into a void. If it smells only at the busiest hour, the variable is traffic and the answer is a mid-service housekeeping round. Those are questions for you, your plumber and your ventilation contractor, and I will not offer plumbing or health-department advice on any of them. Nothing I sell covers, removes or cancels a smell, and SOSA sells no extractor, no purifier and no deodoriser. The ordered list is in why a washroom still smells bad after air freshener.
Tip: Ask whether the cleaning routine touches the drains or only the surfaces. It is almost always only the 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 →
The SOSA principle
A guest cannot inspect your kitchen, so they use the one room adjoining it that you have invited them into - and whatever they find there, they generalise.
Which makes this room's job the removal of a question rather than the creation of an impression.
The order of work, and where fragrance sits
Here is the order, with fragrance in its honest position at the bottom rather than at the top where it is usually bought.
The SOSA plan
What to do about a washroom that is letting the restaurant down
| The step | What to do |
|---|---|
|
1. Smell it empty
|
Walk in before service, when nobody has used it since last night. A smell with no traffic behind it is the building talking, and no dose of anything will answer it. |
|
2. Traps, gullies and drainage
|
Dry traps in floor gullies and rarely-used basins, and urinal drainage, are the most common cause by a distance. Your plumber's call, not mine - I can tell you what to ask. |
|
3. Bins and surfaces
|
A bin that is emptied but never washed holds the smell in the bin rather than in the rubbish. Cleaning routines usually treat surfaces and skip both bins and drains. |
|
4. Extraction and air change
|
Find out whether the extract fan actually runs during service and whether it is ducted somewhere. A fan that is switched off at the board is a very common and very cheap fix. |
|
5. Housekeeping interval
|
If the room only fails at the busiest hour, traffic is the variable and a mid-service round is the answer. Not a stronger fragrance. |
|
6. Then fragrance
|
What a clean room wears. Citrus-mint, low and continuous - a ₹749 reed or a ₹899 Boond. A Vaayu at ₹11,999 for one washroom is the wrong buy. |
If your room fails only when it is busy rather than when it is empty, the variable is traffic and the answer is intervals rather than intensity - that is set out in keeping a high-traffic washroom pleasant all evening. And if the whole building smells of last night rather than just this room, the ordered checklist is in exhaust, grease, HVAC, fabrics, drains or fragrance: what to fix first, where fragrance comes last on purpose. SOSA is independent and not affiliated with any hotel.
Remove the question, do not answer it louder
Morning Freshness ₹749 is what a clean washroom wears - Malabar lemon and mint, low and continuous, on a room that is already right.
A spotless washroom persuades nobody that the kitchen is spotless - it just removes the question, and removing the question is the entire job of this room.
— Sonal Sahani, SOSA
Why restraint wins in this room
A louder fragrance supplies an answer the guest had not asked for
The SOSA washroom specification
These are the sources for a washroom that is already clean, chosen by the room's volume and by whether anybody will own a top-up. Hotel Collection oils at ₹299, ₹999 and ₹1,799 are ultrasonic only and never a Vaayu refill, and 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. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA restaurant specification
Cause first, then a low continuous source in a clean room
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Morning Freshness reed diffuser
|
A clean washroom that nobody will look after mid-service | Malabar lemon and mint at ₹749 for 50ml or ₹1,249 for 130ml, continuous and unpowered, so the room at half past eleven is as it was at seven | ₹749 View → |
|
SOSA Boond
|
A clean washroom where somebody owns the setting | Ultrasonic, about 150 sq ft, USB, roughly six hours a fill at ₹899. A level you can set, with the top-up written on the rota | ₹899 View → |
 SOSA Sukoon
|
A washroom with its own lobby, treated as one volume | 270-320 sq ft with three 15ml fragrances included at ₹1,899. Beyond this, one washroom does not justify more machine, and a Vaayu at ₹11,999 would be the wrong buy | ₹1,899 View → |
Fix the cause, set a housekeeping interval, and then let fragrance be what a clean room wears rather than what a dirty one hides. This is an ambience decision like lighting; it is never a mask for a trap, a gully, urinal drainage, 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. Drainage, ventilation and anything sited near a food-preparation area are questions for you, your consultant and your local authority rather than for me, and I will not describe any fragrance as food-safe or safe around food. Fragrance oil is flammable, so keep oil and machine away from open flame and heat. And plainly: SOSA does not publish a business-outcome number because it has not measured one - this page is about what a guest infers, not about what they do afterwards. Ask for a restaurant scenting plan before you spend anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
What people ask me is whether a bad washroom can ruin an otherwise excellent restaurant, and what they are hoping is that I will sell them something that stops it happening. I will not, and the reason is the most useful thing in this post. The washroom is not letting you down because it lacks a fragrance. It is letting you down because a guest is using it as evidence, and evidence cannot be argued with by adding perfume to it.
The mechanism is simple and I think about it a lot. A guest has no access to your kitchen. They cannot see the cold room, the prep benches, the drainage or the bins, and no amount of menu design will let them. Then you show them one room that adjoins all of that in their imagination, leave them alone in it for ninety seconds, and they read it. A clean room removes the question. A room that smells answers it, badly, about a kitchen that may in fact be immaculate. That is unfair and it is also exactly what I would do in their place. So the honest work here is drains, traps, bins, extraction and a cleaning interval, and I would rather write that paragraph than sell a bottle into a room that is not ready for one.
On hardware, once the room is right: a Morning Freshness reed at ₹749 is what a clean washroom wears, and a Boond at ₹899 gives you a level you can set. A washroom with its own lobby is a Sukoon at ₹1,899, and a Vaayu at ₹11,999 belongs to a connected foyer-and-corridor envelope rather than to one washroom. I do not publish a business-outcome number, because I have not measured one. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Why can a bad-smelling washroom undo an otherwise premium restaurant experience?
Because of inference rather than offence. The washroom is the only room adjoining your back of house that a guest is invited into alone, so it becomes their single sample of how the building is kept, and they generalise from it to the kitchen they will never see. The inference is asymmetric: a clean washroom proves nothing, but a smelly one is taken as proof of the opposite. That is why the cause matters and a cover does not.
Should I add a stronger air freshener to the washroom?
No. A stronger dose is the instinctive response and it makes the room worse, because two smells in one small airspace combine rather than cancel and a guest reads the combination as somebody having tried. Fragrance is never a mask. Work in order instead: smell the room empty, check traps and drainage, wash the bins rather than only emptying them, confirm the extract fan actually runs, set a mid-service cleaning interval, and only then add a low continuous source.
What usually causes it?
Most often a dry trap in a floor gully or a rarely-used basin, urinal drainage, a bin that is emptied but never washed, or an extract fan that is switched off, undersized or ducted into a ceiling void. If the room smells when nobody has used it, the building is producing the smell. If it only smells at the busiest hour, traffic is the variable. Those are questions for your plumber and ventilation contractor, and SOSA gives no plumbing or health-department advice.
Will fixing the washroom improve my restaurant's business?
SOSA does not publish a business-outcome number because it has not measured one. No covers, no table turns, no spend per head, no ratings, no bookings, and any supplier quoting you a figure is selling. What this page describes is what a guest infers from a room, which is a real mechanism and a good enough reason on its own. What they do afterwards is not something a fragrance company is in any position to measure or claim.
Once the room is clean, what should I put in it?
A low continuous citrus-mint, because it reads as cleaned. A Morning Freshness reed is Rs 749 for 50ml, which runs 6 to 8 weeks, or Rs 1,249 for 130ml, which runs 14 to 18, and it cannot be switched off, which in an unattended washroom is a feature. A Boond at Rs 899 gives a level you can set. A Vaayu at Rs 11,999 would be the wrong buy for one washroom, and the dining room stays unscented regardless.
The room they can check stands in for the rooms they cannot
SOSA — Clinic Scenting for fine-dining restaurants and restaurant groups
Fix the cause first: traps, gullies, urinal drainage, bins, an extract fan that actually runs, and a mid-service cleaning interval. Then the SOSA Morning Freshness reed (₹749 for 50ml, ₹1,249 for 130ml) is what a clean washroom wears - Malabar lemon and mint, low and continuous - with a Boond at ₹899 where you want a level you can set and a Sukoon at ₹1,899 for a washroom with its own lobby. A Vaayu at ₹11,999 would be the wrong buy for one washroom. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
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 low continuous citrus-mint source for a washroom that is already clean (₹749)
- What should a luxury restaurant washroom smell like?
- Can restaurants scent the entrance and washrooms while leaving dining areas neutral?
- 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.