★ SOSA for Fine-Dining Restaurants and Restaurant Groups
Yes - and soft furnishings are the reservoir everybody forgets, because a fabric holds the film inside the fibre rather than on the surface, which is why a room can have an immaculate ceiling and still smell of Tuesday
★ ★ ★ ★ ★
★★★★★
"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 small arrival machine - for later, and never for a fabric problem
SOSA SukoonOne small foyer, never the dining roomView ₹1,899SOSA SukoonBought after the fabric schedule, not beforeView ₹1,899SOSA SukoonUnder 750 sq ft, a Vaayu is the wrong buyView ₹1,899
✓ SOSA sells no fabric treatment, no upholstery cleaner and no deodoriser, and no fragrance we make removes, cancels or covers a smell held in a fibre ✓ Ultrasonic cool-mist diffuser covering roughly 270-320 sq ft with three 15ml fragrances, for one small arrival room and nothing more ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
Why are fabrics forgotten in the diagnosis? Because they look clean, and because nothing in a nightly routine touches them. A banquette is vacuumed and wiped where a guest's hand goes; the seat foam, the back panel, the underside of the cushion and the lining of the curtain are not in anybody's checklist. Fabric is also the last thing to give the smell back and the last to lose it, so it is the one reservoir still working after the hard surfaces have been dealt with. If your room improved but did not resolve, this is where I would look next.
What is the schedule, and what does it cost? Curtains and drapes on a specialist clean at a written interval; banquette and chair upholstery deep-cleaned rather than surface-cleaned; carpet extracted rather than shampooed; cushion inners and foam assessed, not assumed. Some materials never fully recover and the honest answer is replacement, which is a budget line rather than a cleaning line. Nothing on that list is sold by a fragrance company. Afterwards, one SOSA Sukoon at ₹1,899 in a small foyer, where a Vaayu would be the wrong buy.
See the SOSA Sukoon 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.
There is a particular kind of message I get from operators who have done everything right: the hood has been degreased, the duct has been opened, the ceiling has been cleaned, and the room still meets them at the door in the morning. Almost every time, the remaining answer is sitting on the chairs.
Quick answers — read this first
Can curtains, carpets and upholstery absorb cooking smells? Yes, and more thoroughly than anything else in the room. A hard surface holds the condensed oil film on itself, where a cloth and a degreaser can reach it. A textile holds it inside the fibre, inside the weave and inside the foam underneath, with an internal surface area many times the area you can see. That is a very large, very well protected reservoir, and it releases slowly into whatever air passes - which is why a room with an immaculate ceiling can still smell of the evening before.Why are fabrics forgotten in the diagnosis? Because they look clean, and because nothing in a nightly routine touches them. A banquette is vacuumed and wiped where a guest's hand goes; the seat foam, the back panel, the underside of the cushion and the lining of the curtain are not in anybody's checklist. Fabric is also the last thing to give the smell back and the last to lose it, so it is the one reservoir still working after the hard surfaces have been dealt with. If your room improved but did not resolve, this is where I would look next.
What is the schedule, and what does it cost? Curtains and drapes on a specialist clean at a written interval; banquette and chair upholstery deep-cleaned rather than surface-cleaned; carpet extracted rather than shampooed; cushion inners and foam assessed, not assumed. Some materials never fully recover and the honest answer is replacement, which is a budget line rather than a cleaning line. Nothing on that list is sold by a fragrance company. Afterwards, one SOSA Sukoon at ₹1,899 in a small foyer, where a Vaayu would be the wrong buy.
The short answer
Short answer: yes, and they are the reservoir most diagnoses miss. A hard surface holds the condensed oil film on itself, where it can be reached; a textile holds it inside the fibre, the weave and the foam beneath, with an internal area many times larger than what you can see. That makes fabric the largest and best-protected reservoir in a room, and the last one still releasing after the ceiling and the ducting have been cleaned. The answer is a written fabric schedule, and replacement where a material has not recovered.
The pick: a fabric schedule, which is labour rather than a purchase. Once it is done, one SOSA Sukoon (₹1,899) for an arrival room under about 750 sq ft, or a Mountain Breeze reed (₹849) for a single small entrance - with a SOSA Vaayu (₹11,999) only where foyer, lounge and corridor form one connected volume.
Next step: take one removable seat cushion from the banquette nearest the kitchen, put it in a clean sealed bag for an hour, then open the bag and smell it, and tell us what you found along with the last specialist cleaning date for your curtains and carpet - Ask for a restaurant scenting plan.
In this guide
This is the page for operators who have already done the hard surfaces and are being asked to believe they imagined the rest. They have not. The remaining smell is usually sitting on the chairs.
The small arrival machine, for afterwards - tap for the specification
For one small arrival room, under about 750 sq ft
SOSA Sukoon ₹1,899
The chemistry underneath all of this
Why do cooking oils create persistent odours in restaurant interiors?
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
Do curtains, carpets and upholstery really hold restaurant cooking smells?
Yes, and they hold them better than any hard surface in the building, which is exactly why they are the reservoir most diagnoses miss. The difference is geometry. When a condensed oil film lands on a painted wall or a steel canopy it sits on the surface, in a single thin layer, exposed, reachable with a cloth and a degreaser. When the same film lands on a woven fabric it goes into the material: along the outside of each fibre, into the spaces of the weave, down through the backing and into the foam or the wadding underneath. The internal surface area of a metre of upholstery is many times the area you can see, so the same quantity of oil is both better distributed and much better protected. Then it does what films do - it oxidises, it becomes smellier than the oil it started as, and it releases slowly back into whatever air is passing. Three things follow. First, fabric is the slowest reservoir in both directions: slowest to release, and therefore the last one still working after the hood, duct and ceiling have been dealt with. If your room improved and did not resolve, this is almost always where the rest of it is. Second, nothing in a nightly routine touches it. A banquette is vacuumed and the arms are wiped; the seat foam, the back panel, the underside of the cushion, the curtain lining and the carpet underlay are in nobody's checklist, and the smell is in all five. Third, some of it does not come back. Specialist cleaning is worth doing and often makes a real difference, but certain materials never fully recover - open-cell seat foam, unlined curtains and some carpet underlays among them - and the honest answer there is replacement, budgeted as a line rather than attempted three times as a cleaning job. I would rather tell you that than sell you something while you try again. So the schedule is: curtains and drapes specialist-cleaned on a written interval; upholstery deep-cleaned rather than surface-cleaned; carpet extracted rather than shampooed; cushion inners and foam assessed rather than assumed; and everything on a date list instead of on complaint. Prioritise by distance and air path from the kitchen, not by what looks worst. None of that is sold here - SOSA makes no fabric treatment, no upholstery cleaner and no deodoriser, and no fragrance we make removes, cancels or covers a smell held in a fibre. Afterwards, if you want an arrival that is consistent, size the non-dining envelope rather than the restaurant: under about 750 sq ft the honest buy is one SOSA Sukoon at ₹1,899 or an ₹849 reed, and a Vaayu would be the wrong buy. It is an ambience decision like lighting, it is never a mask, and the dining room stays unscented. Ask for a restaurant scenting plan once the fabric list has dates on it.
Yes. Fabric holds the condensed film inside the fibre, the weave and the foam, which is a bigger and better-protected reservoir than any hard surface, and nothing in a nightly routine reaches it. Put curtains, upholstery and carpet on a written schedule, replace what has not recovered, and buy nothing from us until that list has dates on it.
Afterwards, and only for a small arrival, the machine is one SOSA Sukoon - ultrasonic, covering roughly 270-320 sq ft, supplied with three 15ml fragrances, for one foyer with a host desk in it. ₹1,899. Under about 750 sq ft of scented envelope a Vaayu would be the wrong buy, and with the fabrics untreated the answer is neither.
See the SOSA Sukoon ₹1,899 Ask for a restaurant scenting plan
Why fabric beats tile at holding a smell
On a hard surface the film is exposed. In a textile it is inside the material
The small machine, for afterwards
A restaurant with a fabric problem usually has a modest arrival envelope, which puts the honest answer at the small end of the ladder. Neither of these products does anything at all to a textile.
One arrival room of roughly 300 to 750 sq ft
SOSA Sukoon
Ultrasonic cool-mist diffuser covering roughly 270-320 sq ft, supplied with three 15ml fragrances. Right for a single foyer with a host desk in it, and the honest ceiling for most restaurants of this shape: a Vaayu at six times the price would be idling at the bottom of its range.
From ₹1,899
A single small entrance under about 300 sq ft, or a washroom
Mountain Breeze reed
Pine, sage and cedar in an alcohol-free, phthalate-free coconut-derived base, ₹849 for 50ml lasting 6 to 8 weeks or ₹1,349 for 130ml lasting 14 to 18 weeks, six fibre reeds flipped weekly. Continuous and unpowered with no off switch, which suits a washroom better than a quiet foyer.
From ₹849
The three fabric reservoirs
Textiles are not one problem, they are three with different cleaning answers and different honest limits. Work them in this order, because that is the order the air reaches them.
1
Curtains, drapes and blinds first
Hung in the air path, floor to ceiling, and almost never cleaned
Curtains are the most exposed textile in the building: they hang in the moving air, they run the full height of the room where the plume ends up, and they are frequently unlined, which means the film goes straight through to the back. They are also cleaned least often, because taking them down is disruptive and because they rarely look dirty. Put them on a specialist cleaning interval with a date recorded, start with the ones nearest the kitchen or an open pass, and look at the lining specifically. An unlined heavy curtain that has hung in an open-kitchen room for five years is one of the honest candidates for replacement rather than another clean.
Tip: Pull a curtain into a closed fold and smell inside the fold. That is what the fabric is holding, not what the room is.
2
Then seating, and the parts nobody opens
The reservoir is the foam and the back panel, not the arm you wipe
Banquettes and upholstered chairs are cleaned where guests touch them, which is not where the smell is. The film travels into the seat foam, the underside of the cushion, the back panel and the seam channels, and open-cell foam in particular holds it in a way surface cleaning does not reach. A deep clean by somebody who works on upholstery is a different job from a wipe and a vacuum, and it is worth commissioning as such. Then be realistic: if a removable cushion sealed in a bag for an hour comes out smelling of the kitchen, its inner is a replacement item, and repeated cleaning will cost more over two years than changing it once.
Tip: Test with a sealed bag and one hour. It is the closest thing to an instrument that any of us has.
3
Then carpet, underlay and everything stored
Extraction rather than shampooing, and check what is underneath
Carpet takes the film from above and holds it in the pile, and the underlay beneath takes whatever passes through. Shampooing the pile can leave the underlay entirely untouched, which is why a carpet sometimes smells worse a day after cleaning than before it: moisture has gone in and the reservoir underneath is now releasing more readily. Hot-water extraction by a contractor who will talk to you about the underlay is the better route. While you are at it, look at the stored textiles nobody counts - table linen held in an open store, napkin stock, waiter cloths, seat pads stacked in a back corridor - because those absorb the room they are kept in and then carry it to a table.
Nothing in this step comes from a fragrance company. It is a contractor, an interval and a budget line.
See SOSA Sukoon →
The SOSA principle
A hard surface wears the film; a textile swallows it, into the fibre, the weave and the foam, where no cloth and no nightly routine will ever meet it.
Which is why fabric is the last reservoir still talking when everything you can reach has already been cleaned.
The fabric schedule, item by item
Print this, put a date against each line, and prioritise by air path from the kitchen rather than by what looks worst.
The SOSA plan
Soft furnishings, item by item, with the honest limits
| The item | What to do |
|---|---|
|
Curtains, drapes and blinds
|
Specialist clean on a written interval, nearest the kitchen or open pass first, and the lining inspected. An unlined curtain of some years is a candidate for replacement. |
|
Banquette and chair upholstery
|
Deep clean rather than a wipe and a vacuum, including the back panel, seam channels and the underside of the cushion. |
|
Seat foam and cushion inners
|
Assessed with the sealed-bag test, not assumed. Open-cell foam that fails it is a replacement line rather than a cleaning line. |
|
Carpet and underlay
|
Hot-water extraction rather than shampooing, with a contractor who will discuss the underlay. Shampoo can leave the reservoir beneath untouched. |
|
Stored linen and cloths
|
Table linen, napkin stock and waiter cloths take on the room they are stored in. Move the store out of the air path and keep it closed. |
|
The arrival, last and small
|
Once the fabrics are dealt with, one small source in a foyer, dry and mineral, never the dining room and never as a remedy. |
If frying is the specific source feeding your fabrics, the capture work that stops it happening again is in how to stop frying odours taking over a premium restaurant, and there is no point cleaning a banquette that is about to be re-loaded. For the whole building in order, with fragrance deliberately at the bottom, read exhaust, grease, HVAC, fabrics, drains or fragrance: what to fix first. SOSA is independent and not affiliated with any hotel.
Clean the fabric. Then a small source at the door
SOSA Sukoon ₹1,899 covers about 270-320 sq ft of foyer - and nothing at all of a banquette, which is why most of this page is about your upholsterer.
Seal a removable seat cushion in a clean bag for an hour and then open it, and the bag will tell you in one breath what three months of arguing about the ducting could not.
— Sonal Sahani, SOSA
Why the small machine is right here
The arrival in a restaurant like this is one room, not a building
The SOSA restaurant specification
The honest ladder for an arrival, once the fabric schedule has dates on it. Reeds are a volume control rather than a range control, so a bigger bottle buys months and not metres. 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
Small arrival, small machine - and nothing until the textiles are dealt with
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Sukoon
|
One arrival room of roughly 300 to 750 sq ft | 270-320 sq ft coverage with three 15ml fragrances included. The honest ceiling for most restaurants of this shape, and the size at which a Vaayu would be the wrong buy | ₹1,899 View → |
|
SOSA Mountain Breeze reed diffuser
|
A single small entrance under about 300 sq ft, or a washroom | Pine, sage and cedar, dry and unmistakably not-food, six reeds flipped weekly. Continuous and unpowered with no off switch, which suits a washroom better than a foyer | ₹849 View → |
Get the curtains, the seating, the foam and the carpet onto a dated schedule, replace what has not recovered, and only then consider one small source at the door. Ambient scent here is an ambience decision like lighting; it is never a mask for grease, frying or a smell held in a fibre; 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 what your extraction, ducting and grease interception require - which is what loaded the fabrics in the first place - is a question for you, your kitchen consultant and your local authority rather than for me. Fragrance oil is flammable, so oil and machine stay away from open flame and heat, including table candles on upholstered banquettes. And plainly: SOSA does not publish a business-outcome number because it has not measured one. Ask for a restaurant scenting plan before you spend anything.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The people who write to me about fabrics have usually done the hard work already and are quietly frustrated. The hood has been degreased, the duct has been opened, the ceiling has been done, and the room is better but not right. They half expect me to tell them they are imagining it. They are not. What is left is in the chairs and the curtains, and the reason nobody looked there is that fabric does not look dirty and nothing in a nightly routine goes anywhere near the inside of it.
The mechanism is worth a sentence. On a wall, the condensed film sits on the surface, in one thin layer, where a cloth can reach it. In a textile it goes into the fibre, into the weave and down into the foam, and the internal area of that material is many times what you can see. So the same amount of oil is spread wider, protected better, and released more slowly - which makes fabric the last reservoir still talking. Curtains first, because they hang in the moving air and are often unlined. Then seating, and specifically the foam and the back panel rather than the arm that gets wiped. Then carpet by extraction rather than shampoo, with a word about the underlay. And I would rather be blunt about the limit: open-cell foam, unlined curtains and some underlays do not fully recover, and replacing them once costs less than cleaning them three times.
On hardware, nothing until that list has dates on it. Afterwards, one arrival room of 300 to 750 sq ft is a Sukoon at ₹1,899, a single small entrance is a Mountain Breeze reed at ₹849, and a Vaayu at ₹11,999 would be the wrong buy at that size - it belongs where a foyer, lounge and corridor are genuinely one volume of air. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Can curtains, carpets and upholstery absorb restaurant cooking smells?
Yes, and they hold them better than any hard surface. On a wall or a canopy the condensed oil film sits on the surface where a cloth can reach it. In a textile it goes into the fibre, into the weave and down into the foam or underlay, where the internal surface area is many times what you can see. That makes fabric the largest and best-protected reservoir in the room, and the slowest to release, so it is the last one still working.
Why do fabrics get missed in the diagnosis?
Because they look clean and because nothing in a nightly routine reaches the part that holds the smell. A banquette is vacuumed and its arms are wiped; the seat foam, the underside of the cushion, the back panel, the curtain lining and the carpet underlay are in nobody's checklist. Fabric is also the slowest reservoir in both directions, so it is the one still releasing after the hood, the duct and the ceiling have all been dealt with properly.
What should the cleaning schedule look like?
Curtains and drapes on a specialist clean at a written interval, starting with those nearest the kitchen or an open pass. Upholstery deep-cleaned rather than wiped, including back panels and seam channels. Carpet by hot-water extraction rather than shampooing, with the underlay discussed. Cushion inners and foam assessed rather than assumed. Stored table linen and cloths moved out of the air path. Put a date against each line and prioritise by air path, not by appearance.
Which materials never fully recover?
In my experience open-cell seat foam, unlined heavy curtains and some carpet underlays are the usual candidates, because the film ends up inside the material rather than on it. Specialist cleaning is worth doing and often helps a great deal, but where a sealed-bag test still fails afterwards, replacement is the honest answer and costs less than three more attempts. That is a budget line rather than a cleaning line, and it is a judgement for you and your upholsterer.
Will a diffuser help while the fabrics are being sorted out?
No. Fragrance never removes, cancels or covers another smell, and a smell held inside a fibre is completely untouched by anything we make. SOSA sells no fabric treatment, no upholstery cleaner and no deodoriser. Once the schedule has dates on it and the room reads clean with nothing cooking, one small arrival source makes sense: a Sukoon at Rs 1,899 for a foyer under about 750 sq ft, or a reed at Rs 849. The dining room stays unscented.
The smell is in the chairs. Start there
SOSA — Clinic Scenting for fine-dining restaurants and restaurant groups
The SOSA Sukoon (₹1,899) covers roughly 270-320 sq ft and is the honest answer for one arrival room, with a Mountain Breeze reed at ₹849 where the entrance is a single doorway; under about 750 sq ft of non-dining envelope a Vaayu at ₹11,999 would be the wrong buy, and with the fabrics untreated the answer is to buy nothing yet. Made in India, and a portion of every order supports girl-child education through Nanhi Kali. Send us the sealed-bag result and the last specialist cleaning dates for curtains and carpet.
Ask for a restaurant scenting plan → SOSA Sukoon · ₹1,899
One more look at the Sukoon
Continue the read
More from SOSA
- SOSA Sukoon - the small arrival diffuser for one foyer, once the textiles are dealt with (₹1,899)
- Why does an open kitchen smell amazing during service but stale the next morning?
- Why does my restaurant smell like cooking long after the kitchen closes?
- 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.