★ SOSA for Fine-Dining Restaurants and Restaurant Groups
A Japanese dining room is the quietest air in this whole cluster, and quiet air is the one condition in which an added fragrance does not need to be strong to become the loudest thing in the room
★ ★ ★ ★ ★
★★★★★
"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 two reeds this building actually needs, and no machine at all
SOSA Mountain Breeze reed diffuserThe entry vestibule, and nowhere past itView ₹849SOSA Mountain Breeze reed diffuserSilent and unpowered, which matters in a quiet roomView ₹849SOSA Mountain Breeze reed diffuserDry pine, sage and cedar - never anything edibleView ₹849
✓ Alcohol-free, phthalate-free reed diffusers on a coconut-derived base, with six fibre reeds - silent, unpowered, and nothing added to the air but fragrance ✓ 50ml lasts 6-8 weeks and 130ml lasts 14-18 weeks, so a small entry and two washrooms are a few hundred rupees a quarter rather than a hardware decision ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
Why does serving temperature change the argument? Because aroma release rises with temperature. Sashimi straight from a cold drawer, a chilled hassun, a room-temperature aemono: all of them are quiet in the air, deliberately. A bowl of warm dashi is the opposite - it is warm so that the kombu and the katsuobushi lift as the lid comes off. An ambient fragrance does not know the difference and holds one level through all of it, which means it is a constant sitting at the same volume as the most delicate thing on the table.
So what does this building buy, and what does it cost? Very little, and that is the honest answer. A 2,200 sq ft kaiseki or omakase restaurant is typically a 90 sq ft entry vestibule, 70 sq ft of corridor and two washrooms of about 55 sq ft: under 300 sq ft in three or four small separate volumes. That is one Mountain Breeze reed at ₹849 at the entry and a Morning Freshness at ₹749 in each washroom - about ₹2,350 all in. A Vaayu would be the wrong buy.
See the SOSA Mountain Breeze 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 once walked me through a room he had spent a year getting right: bare timber, no cloth on the counter, one flower, no music worth the name. Then he asked what fragrance I would put in it. I said none, and he looked relieved rather than disappointed, which told me he had already worked it out and wanted somebody in my trade to say it out loud.
Quick answers — read this first
Should a Japanese fine-dining restaurant use added fragrance? Not in the dining room or at the counter, and I would call this the strictest unscented room in the cluster. Much of a Japanese menu is served cool, chilled or at room temperature, which means it puts very little aroma into the air on purpose, and the dishes that are warm are warm precisely so they release at the moment they are set down. Into that quiet, an added fragrance is loud at any setting. The entry and the washrooms are a different matter.Why does serving temperature change the argument? Because aroma release rises with temperature. Sashimi straight from a cold drawer, a chilled hassun, a room-temperature aemono: all of them are quiet in the air, deliberately. A bowl of warm dashi is the opposite - it is warm so that the kombu and the katsuobushi lift as the lid comes off. An ambient fragrance does not know the difference and holds one level through all of it, which means it is a constant sitting at the same volume as the most delicate thing on the table.
So what does this building buy, and what does it cost? Very little, and that is the honest answer. A 2,200 sq ft kaiseki or omakase restaurant is typically a 90 sq ft entry vestibule, 70 sq ft of corridor and two washrooms of about 55 sq ft: under 300 sq ft in three or four small separate volumes. That is one Mountain Breeze reed at ₹849 at the entry and a Morning Freshness at ₹749 in each washroom - about ₹2,350 all in. A Vaayu would be the wrong buy.
The short answer
Short answer: no, not in the dining room and not at the counter. Much of a Japanese menu is served cool or at room temperature and releases very little aroma into the air by design, so an added fragrance becomes proportionally louder without ever getting stronger. Scent only the entry vestibule and the washrooms, in small separate volumes, with reeds rather than a machine - about Rs 2,350 for the whole building.
The pick: one Mountain Breeze reed (₹849 for 50ml, ₹1,349 for 130ml) in the entry vestibule and one Morning Freshness reed (₹749) in each washroom. No machine anywhere in the building, because there is no single volume large enough to need one and no volume at all that should reach the counter.
Next step: send the plan with the entry, the corridor, the washrooms and the counter marked, and we will tell you the two or three places we would put a bottle and confirm that the rest of the building gets nothing - Ask for a restaurant scenting plan.
In this guide
This is the shortest shopping list in the cluster and I am comfortable with that. There is no single volume in most of these buildings big enough to justify a machine, and the room everybody asks about should have nothing in it.
The reeds - tap to see the specification
For an entry vestibule and a washroom, and nothing beyond them
SOSA Mountain Breeze reed diffuser ₹849
The same conclusion from the brand side
Why an unscented dining room may be the best strategy
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
Should a Japanese fine-dining restaurant use added fragrance anywhere?
In the dining room and at the counter, no, and I would put this ahead of every other cuisine in the cluster for strictness. The reason is physical and it is about release rate. How much aroma a dish puts into the air depends heavily on its temperature, and a Japanese fine-dining menu is unusual in how much of it is served cool, chilled or at room temperature: sashimi out of a cold drawer, a chilled hassun, a dressed vegetable at room temperature, a piece of nigiri at body warmth rather than plate warmth. Those dishes are quiet in the air on purpose. The ones that are warm are warm for a reason too - a covered bowl of dashi is heated so that the kombu and the katsuobushi lift in the second after the lid comes off, and a grilled item is set down while it is still releasing. So the room's own aromatic output is deliberately low and deliberately intermittent. Now put a fragrance into that air. It does not have to be strong. The level you would choose for a hotel lobby is already loud here, because the thing it is being measured against has been made quiet by design - the fragrance has not got bigger, the room has got smaller. And a guest at a counter is sitting a metre from the work, for two hours, with no way to move. So the dining room, the counter, the pass and any private tasting room stay unscented, and that includes a reed on a shelf, a scented candle on the counter and a scented oshibori. There is also a quieter point worth making: this is usually not a building with an odour emergency. There is far less deep-frying than in most kitchens, a lot of the work is cutting, steaming and simmering, and a binchotan grill under a properly specified hood is a contained load. You are not being asked to fix a room. You are being asked not to spoil one. What is left is genuinely small. The entry vestibule and the washrooms are separate volumes with no food in them, and they are tiny: under about 750 sq ft of scented envelope the honest answer is a reed rather than a machine, and a Vaayu at ₹11,999 would be the wrong buy in this building, as would a Sukoon in most of them, because the volumes are 60 to 90 sq ft and there are three of them. One Mountain Breeze reed at ₹849 in the entry, dry pine, sage and cedar that reads as clean timber rather than as perfume, and a Morning Freshness reed at ₹749 in each washroom. About ₹2,350 for the whole building. The standing limits: an ambience decision like lighting, never a mask, the dining room and the counter stay unscented, and your chef's judgement overrides this plan in their own room. Ask for a restaurant scenting plan and send the plan.
Much of a Japanese menu is served cool and releases very little into the air by design, so the room is quiet and an added fragrance is loud at any level. Nothing in the dining room, nothing at the counter. One ₹849 reed at the entry and a ₹749 reed in each washroom, and no machine anywhere.
For the entry vestibule, one Mountain Breeze reed - alcohol-free and phthalate-free on a coconut-derived base, six fibre reeds, Himalayan pine with sage and cedar, 50ml lasting 6-8 weeks. ₹849, or ₹1,349 for 130ml, which buys months rather than metres. No machine in this building.
See the SOSA Mountain Breeze reed diffuser ₹849 Ask for a restaurant scenting plan
Why this is the strictest room in the cluster
When the food is quiet by design, an addition does not need to be loud to dominate
The two reeds, and no machine
The entry and the washrooms are small separate volumes, which is exactly the shape a reed is for and exactly the shape a machine is wrong for. The images link to the product pages so you can read the specification before ordering.
The entry vestibule
SOSA Mountain Breeze reed
Alcohol-free reed diffuser, Himalayan pine with sage and cedar on a coconut-derived base, six fibre reeds, flipped weekly. 50ml at ₹849 lasts 6-8 weeks and 130ml at ₹1,349 lasts 14-18 weeks. Dry, resinous and unmistakably not food, which reads as clean timber in a room made of timber and stone. Silent and unpowered, which matters where there is no music to hide a fan.
From ₹849
Each washroom, separately
SOSA Morning Freshness reed
Malabar lemon with peppermint and eucalyptus, 50ml at ₹749 lasting 6-8 weeks, 130ml at ₹1,249 lasting 14-18 weeks. A washroom is the one room where a brighter, sharper direction earns its keep, because citrus-mint reads as cleaned rather than as perfumed - and a reed cannot be switched off, which in that room is a feature.
From ₹749
The three things to check, in order
Three checks, and none of them is about which fragrance. Two are about the room and one is about the shortest shopping list in the cluster.
1
Count the cool courses
The quieter the menu, the smaller the addition has to be before it dominates
Go down the sequence and mark every course that is served chilled, cool or at room temperature, and every one that is warm on purpose. In most kaiseki and omakase menus the first list is long and the second list is short and precise. That distribution is the argument: a cool dish releases very little aroma into the room, so the air around the counter carries almost nothing, and anything you add sits on top of near-silence. This is why I will not offer a very low setting as a compromise here. There is no level low enough to be inaudible against a chilled dish.
Tip: Write the two lists side by side. The imbalance is the whole case, on one sheet of paper.
One Mountain Breeze reed diffuser ₹849, set once and left alone, is the whole hardware side of this.
See SOSA Mountain Breeze reed diffuser →
2
Check the counter distance
A metre from the work for two hours, with nowhere to move
At a kappo counter or an omakase bar the guest is closer to the food than anywhere else in this cluster, and they are seated for the whole meal. That is not a room they can step out of for a minute. So the usual reassurance that a source is far away and set low does not apply: there is no far away. No machine goes anywhere its output can reach the counter, and if the only mounting position your building offers does, then the honest answer for that building is to scent nothing at all. I have said that to people who were ready to buy.
Tip: Stand behind the last seat at the counter and look at every possible position. If you can see it, it is too close.
One Mountain Breeze reed diffuser ₹849, set once and left alone, is the whole hardware side of this.
See SOSA Mountain Breeze reed diffuser →
3
Then buy for three small volumes, not one big one
An entry and two washrooms are reeds, and a machine would be the wrong instrument
Measure the entry vestibule, the corridor and the washrooms and you will usually be under 300 sq ft in total, split across three or four separate rooms with doors between them. A single machine cannot serve separate volumes, and a Vaayu would be the wrong buy at this size, as would a Sukoon in most of these buildings. Reeds are the right instrument: silent, unpowered, and physically discreet on a shelf in a room that has been deliberately emptied of clutter. A reed has no off switch, which in a washroom is a feature and in a small entry is usually fine.
Tip: Six reeds in six places is right here. Six reeds in one big foyer is not - reach is set by reed surface, not bottle size.
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 fragrance does not become loud in a Japanese dining room by getting stronger - it becomes loud because the food has been made quiet on purpose, and the denominator has shrunk.
Which is why I will not offer a very low setting as a compromise in this one building.
The plan, zone by zone
The shortest zone plan in the cluster, which is the correct length for this building.
The SOSA plan
A Japanese fine-dining restaurant, zone by zone
| The zone | What to do |
|---|---|
|
The counter and the dining room
|
Nothing. No machine, no reed on a shelf, no scented candle, no scented oshibori. The guest is a metre from the work for two hours and the menu is quiet by design. |
|
The pass and the grill station
|
Nothing, and no source positioned anywhere its output could drift to either. Capture at a binchotan grill is a hood question for your kitchen consultant. |
|
Entry vestibule
|
One reed, dry pine, sage and cedar, reading as clean timber rather than as perfume. Silent and unpowered, which is the right behaviour in a quiet entry. |
|
Corridor to the washrooms
|
Usually shares the entry's air, so no source of its own. Check with a strip of tissue at nose height before you decide it is separate. |
|
Washrooms
|
One reed each, citrus-mint, because the message that room should carry is cleaned rather than composed. No off switch, which here is a feature. |
|
A private tatami or tasting room
|
Nothing during service. If it sits empty for hours, air it before guests arrive - an open window beats anything in my catalogue for that job. |
The authorship argument runs alongside the temperature one and is set out in whether a chef-led tasting menu should avoid added fragrance, which is worth reading if your menu is a fixed sequence. And if you want the whole cuisine question answered at once rather than one kitchen at a time, whether cuisine determines if ambient fragrance makes sense explains why the fragrance answer never actually moves. SOSA is independent and not affiliated with any hotel.
Two bottles, three rooms, and nothing else
A Mountain Breeze reed at ₹849 in the entry and a Morning Freshness at ₹749 in each washroom is the entire honest specification for most of these buildings.
A chef who has taken the cloth off the counter and the music off the wall is not looking for a background note, and I would be a poor perfumer if I pretended otherwise.
— Sonal Sahani, SOSA
Why a reed is the right instrument here
Small separate volumes, no power, no fan, nothing on a shelf that draws the eye
The SOSA restaurant specification
Two reeds cover this entire building, and I would rather tell you that than sell you a machine that has nowhere to go. Reeds are a volume control rather than a range control, so a bigger bottle buys months and not metres, and refills are 300ml at ₹2,399 and 500ml at ₹3,499. Made in India, composed in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA restaurant specification
Dry timber at the entry, citrus-mint in the washrooms, nothing anywhere else
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Mountain Breeze reed diffuser
|
An entry vestibule under about 300 sq ft | Pine, sage and cedar, dry and unmistakably not food. Silent, unpowered and physically small, which suits a room that has been deliberately emptied. ₹849 for 50ml, ₹1,349 for 130ml | ₹849 View → |
|
SOSA Morning Freshness reed diffuser
|
Each washroom, as its own volume | Malabar lemon with peppermint and eucalyptus. Citrus-mint reads as cleaned, which is the reassurance a washroom is actually giving, and continuous with no off switch is right in that room | ₹749 View → |
Count the cool courses, stand behind the last seat at the counter, then buy for three small rooms rather than one large one. Ambient scent here is an ambience decision like lighting; it is never a mask for cooking, grease, fish or a drain; and the counter, the dining room, any tatami or tasting room and the pass stay unscented, with no source placed where its output can reach the work. I will not describe any fragrance as food-safe or safe for use around food, because we have not tested for that and will not imply it, and anything sited near a preparation area or a grill is a question for you, your kitchen consultant and your local authority rather than for me - keeping the bottle out of those areas entirely is how we sidestep it. Fragrance oil is flammable, so oil and reeds stay away from open flame and heat, which in this building means the charcoal grill and any table candle. 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
I get asked about Japanese restaurants less often than about any other cuisine in this cluster, and when I am asked, the owner has usually already decided. They describe a room they emptied on purpose and then ask, a little warily, what I would add. The answer is nothing, and I think the reason is worth saying carefully rather than just being agreeable. It is not that the food is too subtle to be interfered with, which is the kind of sentence that flatters a chef without telling them anything. It is that the release rate of a cool dish is genuinely low, so the air at that counter is carrying very little, and anything I put in it is measured against near-silence.
The counter makes it worse, or rather clearer. A guest at an omakase counter sits about a metre from the board for two hours and cannot move. Everywhere else in this vertical I can talk about distance and gradients and setting a level for the third hour. There is no distance to talk about here. So my position is simple: the counter, the dining room, the pass and any tatami room get nothing, and that includes a reed on a shelf and a scented candle, because a reed in a small room is not gentler than a machine in a big one - it is just closer. If the only position in your building reaches the counter, buy nothing and I will say so on a call.
What is left is two bottles. A Mountain Breeze reed at ₹849 in the entry, dry pine and sage and cedar so that it reads as clean timber and never as food, and a Morning Freshness at ₹749 in each washroom. Around ₹2,350 for the building. A Sukoon at ₹1,899 makes sense only if you genuinely have one arrival room of 300 sq ft or more, and a Vaayu at ₹11,999 would be the wrong buy in almost every one of these restaurants. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Should a Japanese fine-dining restaurant use added fragrance?
Not in the dining room and not at the counter. This is the strictest unscented room in the cluster. Much of the menu is served chilled, cool or at room temperature, which means it releases very little aroma into the air by design, and the warm courses are warm so that they release at the moment of service. An added fragrance sits on top of that near-silence at any level. The entry vestibule and the washrooms are a different question.
Why does serving temperature matter to this decision?
Because aroma release rises with temperature. Sashimi from a cold drawer, a chilled hassun and a room-temperature dressed vegetable are all quiet in the air on purpose, while a covered bowl of dashi is heated so the kombu and katsuobushi lift as the lid comes off. An ambient source holds one level through all of it. So the issue is not that a fragrance would be strong, it is that the thing it is measured against has been made deliberately small.
Can a very low setting work at an omakase counter?
No, and I will not offer it as a compromise here. A guest at a counter sits about a metre from the work for two hours and cannot move away, so there is no distance and no gradient to rely on. No machine goes anywhere its output can reach the counter, and that includes a reed on a nearby shelf and a scented candle. If the only position available in your building reaches the counter, the honest answer for that building is to scent nothing at all.
What should a Japanese restaurant actually buy?
Usually two kinds of bottle and no machine. A 2,200 square foot restaurant is often a 90 square foot entry, 70 square feet of corridor and two washrooms of around 55 square feet: under 300 square feet in three or four separate volumes. That is one Mountain Breeze reed at Rs 849 in the entry and one Morning Freshness at Rs 749 in each washroom, about Rs 2,350 in total. A Vaayu at Rs 11,999 would be the wrong buy.
Does a Japanese kitchen have an odour problem to solve first?
Usually less of one than most kitchens, and it is worth saying so. There is typically far less deep-frying, a great deal of the work is cutting, steaming and simmering, and a charcoal grill under a properly specified hood is a contained load. So you are generally not being asked to fix a room. If the room does smell of yesterday, that is still an extraction, grease, drain or housekeeping question, and fragrance is never a mask for it.
Quiet food, quiet room, and a very short shopping list
SOSA — Clinic Scenting for Japanese fine dining, kaiseki rooms and omakase counters
The SOSA Mountain Breeze reed (₹849 for 50ml, ₹1,349 for 130ml) belongs in the entry vestibule and a Morning Freshness reed (₹749) in each washroom, and nothing goes in the dining room, at the counter or near the pass. Alcohol-free and phthalate-free, six fibre reeds, 50ml lasting 6-8 weeks. A Sukoon at ₹1,899 only if you genuinely have one arrival room past 300 sq ft; a Vaayu at ₹11,999 would be the wrong buy here. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Ask for a restaurant scenting plan → SOSA Mountain Breeze reed diffuser · ₹849
One more look at the Mountain Breeze reed diffuser
Continue the read
More from SOSA
- SOSA Mountain Breeze reed diffuser - the dry, silent reed for a small Japanese entry where a machine would be the wrong instrument (₹849)
- Should food be the only fragrance inside a fine-dining restaurant?
- When should a restaurant avoid ambient fragrance completely?
- 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.