★ SOSA for Fine-Dining Restaurants and Restaurant Groups
A reed is continuous, silent, unpowered and cannot be switched off - and in a washroom that last one is a feature rather than a limitation, which is why under about 80 sq ft the ₹849 bottle wins outright
★ ★ ★ ★ ★
★★★★★
"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 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
★ The unpowered side of the comparison
SOSA Mountain Breeze reed diffuserContinuous, silent, and nothing to switch offView ₹849SOSA Mountain Breeze reed diffuser50ml runs 6-8 weeks, 130ml runs 14-18View ₹849SOSA Mountain Breeze reed diffuser₹849, and no plug in a wet roomView ₹849
✓ Alcohol-free and phthalate-free on a coconut-derived base with six fibre reeds flipped weekly - a volume control rather than a range control, so a bigger bottle buys months and not metres ✓ Under about 80 sq ft a reed wins outright on every axis that matters in a washroom, and a Vaayu at ₹11,999 would be the wrong buy for any single washroom ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Fine-Dining Restaurants
What does a machine actually buy me, then? Scheduling and a settable level - and both matter once the room stops being just a washroom. If the source is serving a washroom lobby that is also part of your corridor, or two washrooms off one shared lobby, a single machine at one written setting is tidier than three bottles, and you can bring the level down for a private lunch. A reed cannot be dialled and cannot be paused, so in a room where you would sometimes want it quieter, it is the wrong format.
What do the two cost, honestly? A Mountain Breeze reed is ₹849 for 50ml, which runs 6-8 weeks, or ₹1,349 for 130ml, which runs 14-18; the citrus-mint Morning Freshness is ₹749 and ₹1,249, and reed refills are 300ml at ₹2,399 or 500ml at ₹3,499. On the powered side a Boond is ₹899 for about 150 sq ft on roughly six hours a fill, and a Sukoon ₹1,899 for about 270-320 sq ft with three 15ml fragrances included. A Vaayu at ₹11,999 is the wrong buy for any single washroom.
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.
I sell both of these, which means I have no reason to flatter either. And the deciding factor in a washroom turns out to be a property that looks like a weakness everywhere else in a building: a reed has no off switch, so nobody can turn it off, and nobody ever does.
Quick answers — read this first
Reed or machine for a restaurant washroom? Under about 80 sq ft, the reed, and it is not close. A reed is continuous, silent, unpowered and impossible to switch off - and in a room that is unattended for hours and touched by a cleaner, a host and a manager in one evening, that last property is a feature rather than a limitation. A machine buys you two real things: a level you can set and a schedule you can programme. In a washroom, which runs all day at one low level, neither is worth much.What does a machine actually buy me, then? Scheduling and a settable level - and both matter once the room stops being just a washroom. If the source is serving a washroom lobby that is also part of your corridor, or two washrooms off one shared lobby, a single machine at one written setting is tidier than three bottles, and you can bring the level down for a private lunch. A reed cannot be dialled and cannot be paused, so in a room where you would sometimes want it quieter, it is the wrong format.
What do the two cost, honestly? A Mountain Breeze reed is ₹849 for 50ml, which runs 6-8 weeks, or ₹1,349 for 130ml, which runs 14-18; the citrus-mint Morning Freshness is ₹749 and ₹1,249, and reed refills are 300ml at ₹2,399 or 500ml at ₹3,499. On the powered side a Boond is ₹899 for about 150 sq ft on roughly six hours a fill, and a Sukoon ₹1,899 for about 270-320 sq ft with three 15ml fragrances included. A Vaayu at ₹11,999 is the wrong buy for any single washroom.
The short answer
Short answer: the reed, under about 80 sq ft, and it is not close. A reed is continuous, silent, unpowered and cannot be switched off, which in an unattended washroom touched by several pairs of hands is a feature rather than a limitation. A machine buys a level you can set and a schedule you can programme, and those only start to matter once the source is serving a washroom lobby or two washrooms off one lobby.
The pick: one SOSA Mountain Breeze reed (₹849 for 50ml, ₹1,349 for 130ml) where the washroom lobby reads as part of a dry, green arrival, or the citrus-mint Morning Freshness at ₹749 inside the washroom itself. Past a lobby, a Boond at ₹899 or a Sukoon at ₹1,899.
Next step: send us the washroom's floor area, whether it has a lobby in front of it, and whether anybody on your team would actually change a setting during service, and we will tell you which format to buy - Ask for a restaurant scenting plan.
In this guide
The second line is the whole comparison. Everywhere else in a building I treat a reed's missing off switch as a fault, and I say so in writing. In this one room it is the reason to buy one.
The reed - tap for the specification
Pine, sage and cedar, unpowered, for a lobby or corridor
SOSA Mountain Breeze reed diffuser ₹849
What the fragrance itself should be
Best fragrance direction for a premium restaurant washroom
Get the zoning confirmed
Free restaurant scenting plan
Straight answer
Reed diffusers or automatic scenting for a restaurant washroom - which is right?
Under about 80 sq ft, the reed, and I sell both so I have no reason to flatter either. Here is the deciding property, and it is one I describe as a fault everywhere else in a restaurant: a reed has no off switch. In a foyer that is genuinely a problem - there are evenings when a private lunch should have a quiet room and you cannot give it one. In a washroom it is the single most useful thing about the format. That room is unattended for hours at a stretch, it is touched during one service by a cleaner, a host and a manager, and any machine with a button on it will eventually be found switched off by somebody who was being helpful. A bottle cannot be switched off, cannot be turned down to nothing, and does not care whether anybody remembered it. It is also silent and unpowered, which in a wet room with limited socket positions is worth more than it sounds. So: a Mountain Breeze reed at ₹849 for 50ml or ₹1,349 for 130ml where the washroom lobby reads as part of a dry, green arrival, or the citrus-mint Morning Freshness at ₹749 or ₹1,249 inside the washroom itself, which is the direction that room actually wants. Now the honest case for the machine, because it is real. A machine buys two things: a level you can set, and a schedule. Neither is worth much in a washroom that runs all day at one low level, which is why the reed wins in a small room. Both start to matter the moment the source is serving more than a washroom - a lobby that is also part of your corridor, or two washrooms opening off one shared lobby, where one machine at one written setting is tidier and cheaper than three bottles and their aureoles. That is Boond territory at ₹899, rated to about 150 sq ft and running roughly six hours a fill, or Sukoon territory at ₹1,899 for about 270-320 sq ft. A Vaayu at ₹11,999 is the wrong buy for any single washroom, whatever format you choose; it belongs to a connected envelope of foyer, corridor and washroom lobby. The concession that applies to both: a reed is a volume control, not a range control. Reach is set by exposed reed surface, so a bigger bottle buys you months rather than metres, and two bottles in one room give you two small pockets instead of a louder room - which is the honest limit of the format, from the company that sells it. And whichever you buy, it goes into a room that is already clean: fragrance is never a mask for a trap, a gully, a bin or a failed extract, 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 the room's size.
Under about 80 sq ft, the reed - because it is continuous, silent, unpowered and cannot be switched off, which in an unattended washroom is a feature. A machine buys a level you can set and a schedule, and those earn their keep once you are serving a lobby or two washrooms rather than one room. ₹849 or ₹749 a bottle; ₹899 or ₹1,899 a machine.
The unpowered answer: a Mountain Breeze reed - pine, sage and cedar, six fibre reeds flipped weekly, 6-8 weeks from 50ml and 14-18 from 130ml. ₹849 or ₹1,349. Inside the washroom itself, the citrus-mint Morning Freshness at ₹749 is the better direction.
See the SOSA Mountain Breeze reed diffuser ₹849 Ask for a restaurant scenting plan
The property that decides it
No off switch - which is why it is still working at half past eleven
The unpowered side of the comparison
Two reeds, two directions, one format. Which of them belongs in which room is a fragrance question rather than a hardware question, and the hardware question is answered by the room's size. The images link to the product pages.
A washroom lobby that reads as part of the arrival
SOSA Mountain Breeze reed diffuser
Pine, sage and cedar on an alcohol-free, phthalate-free coconut-derived base, six fibre reeds flipped weekly. ₹849 for 50ml, which runs 6-8 weeks, or ₹1,349 for 130ml, which runs 14-18. Dry, green and clearly not food - right where a washroom lobby is continuous with a corridor you have already scented.
From ₹849
Inside the washroom itself
SOSA Morning Freshness reed diffuser
Malabar lemon and mint, same base and same six reeds, at ₹749 for 50ml or ₹1,249 for 130ml. A citrus-mint reads as cleaned where a dry wood reads as furnished, which is why this is the direction for the washroom itself even when the lobby outside takes the pine and cedar.
From ₹749
What each format is genuinely good at
Three honest paragraphs, one of which argues against the product on this page. The comparison only helps if it is written that way.
1
What the reed wins on
Continuity, silence, no power, and nothing to switch off
A washroom wants one low level, all day, every day, with nobody thinking about it. That is exactly what a reed does and all it does. It is silent, which matters in a small tiled room where a fan is already running. It needs no socket, which matters in a wet room where the few available positions are usually spoken for. It cannot be turned off, so the room at half past eleven is the room at seven. And it cannot be turned up, which sounds like a limitation until you remember that in a small sealed room a guest cannot walk away from, turning it up is the mistake most operators make.
Tip: Flip the reeds weekly and write it on the same rota as the towels. It is the only maintenance there is.
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
What the machine wins on
A level you can set, and a schedule you can programme
A machine earns its money when the source is serving more than one small room. A washroom lobby that is continuous with your corridor is a bigger volume with a door swinging into it, and one machine at a written setting covers it better than bottles dotted about. A machine can also be brought down for a private lunch or up on a Saturday, and can be scheduled to service hours so the room is not being dosed at four in the morning. A Boond at ₹899 does about 150 sq ft on roughly six hours a fill; a Sukoon at ₹1,899 does about 270-320 sq ft.
Tip: If you buy a machine, write the setting on a card behind it. Several pairs of hands reach this room in one evening.
3
Where the line actually falls
About 80 sq ft, and whether there is a lobby
Under roughly 80 sq ft with no lobby - which is most restaurant washrooms - the reed wins on every axis that matters, and I would rather sell you a ₹749 bottle than a machine that will be found switched off in March. Between about 80 and 150 sq ft, or where there is a small lobby, a Boond at ₹899 is reasonable if somebody will own the six-hourly top-up. Past that, or with two washrooms off one lobby, a Sukoon at ₹1,899. A Vaayu at ₹11,999 is the wrong buy for any single washroom and only earns its place when the lobby, corridor and foyer are one connected envelope.
Tip: Measure the room before you shop. Almost every washroom I am sent is smaller than the operator guessed.
The SOSA principle
A reed cannot be switched off, which I call a fault in a foyer and a feature in a washroom - and that single property, not fragrance, decides this comparison under about 80 sq ft.
I sell both formats, so the only useful thing I can do here is say which one I would put in my own washroom.
The head-to-head, axis by axis
One table, six axes, and the verdict written for a washroom rather than for a building in general.
The SOSA plan
Reed vs machine, judged for a restaurant washroom
| The axis | What to do |
|---|---|
|
Continuity
|
Reed. It holds one level from opening to close with nobody touching it, and a machine only matches that if somebody remembers the top-up and leaves the switch alone. |
|
Being switched off
|
Reed, decisively. It cannot be, and in a room reached by a cleaner, a host and a manager in one evening that is the property that keeps the plan alive past March. |
 A level you can set
|
Machine. A reed gives whatever the bottle gives. If you would sometimes want this room quieter, or louder on a Saturday, buy the machine and write the setting down. |
|
Scheduling
|
Machine. Service-hours timing matters in a foyer and matters very little in a washroom, which wants the same low level whenever anybody might walk in. |
|
Covering a lobby
|
Machine. A reed's reach is set by exposed reed surface, so bottles give you pockets rather than a level - two bottles in a lobby is two small aureoles, not one scented room. |
|
Under about 80 sq ft
|
Reed, outright. ₹749 for the citrus-mint or ₹849 for the pine and cedar, silent, unpowered and running 6-8 weeks from 50ml. A Vaayu at ₹11,999 is the wrong buy for any single washroom. |
If what you actually need to settle is the fragrance rather than the format, the register and the four refusals are in the best fragrance direction for a premium washroom. And the reed's limits in a bigger room are written out plainly, by the company that sells them, in why multiple reed diffusers are usually not enough for a large foyer. SOSA is independent and not affiliated with any hotel.
Nothing to plug in, nothing to switch off
Mountain Breeze ₹849 is pine, sage and cedar on six fibre reeds - the unpowered answer for a washroom lobby or corridor.
I would rather sell you a ₹749 bottle that is still working in March than a machine that somebody switched off in October to be helpful.
— Sonal Sahani, SOSA
The honest limit of a reed
A volume control, never a range control
The SOSA washroom specification
Format is decided by the size of the volume and by whether anybody will own a setting; fragrance direction is decided separately and the washroom itself wants the citrus-mint. Hotel Collection oils at ₹299, ₹999 and ₹1,799 are ultrasonic only and are never a Vaayu refill, and cold-air refill oil for the Vaayu is not currently sold separately, so the 4 × 100ml 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
Reed under about 80 sq ft, machine once there is a lobby
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Mountain Breeze reed diffuser
|
A washroom or lobby under about 80 sq ft, unpowered | Pine, sage and cedar at ₹849 for 50ml or ₹1,349 for 130ml. Continuous, silent, nothing to plug in and nothing for anybody to switch off | ₹849 View → |
|
SOSA Boond
|
About 80-150 sq ft, where somebody owns the top-up | Ultrasonic, about 150 sq ft, USB, roughly six hours a fill at ₹899 - a level you can set, with the refill written on the rota | ₹899 View → |
 SOSA Sukoon
|
A washroom lobby, or two washrooms off one lobby | 270-320 sq ft with three 15ml fragrances included at ₹1,899. One source, one written setting, and a Vaayu at ₹11,999 would still be the wrong buy here | ₹1,899 View → |
Choose the format by the size of the volume and by whether anybody will own a setting, and choose the fragrance separately - the washroom itself wants the citrus-mint whatever the lobby takes. 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. I will not describe any fragrance as food-safe or safe around food, 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, bottles 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
This is the comparison I am asked for most often and the one suppliers are least honest about, because the machine costs more. I sell both, which does not make me impartial, but it does mean I have no reason to talk anybody out of the bottle. And in a washroom the bottle usually wins, for a reason that has nothing to do with fragrance quality and everything to do with restaurants having a great many hands in them.
Think about what actually happens to a machine in a restaurant washroom. A cleaner unplugs it to use the socket. A host turns it down because a guest said something on a Tuesday. A manager turns it up because a supplier said stronger is better. By March nobody knows what the setting was, and half the time it is switched off. A reed does not offer anybody that opportunity. It is silent, it needs no socket in a wet room, and it holds one low level for six to eight weeks whether or not anybody is paying attention. In a foyer I call the missing off switch a fault, in writing, because there are evenings you want a quiet room. In a washroom there are no such evenings.
On hardware, plainly. Under about 80 sq ft, a reed: the citrus-mint Morning Freshness at ₹749 inside the washroom, or Mountain Breeze at ₹849 where the lobby is part of a dry, green arrival. Between about 80 and 150 sq ft a Boond at ₹899, and a lobby serving two washrooms a Sukoon at ₹1,899. A Vaayu at ₹11,999 is the wrong buy for any single washroom. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Reed diffusers or automatic scenting for a restaurant washroom?
Under about 80 sq ft, the reed, and it is not close. A reed is continuous, silent, unpowered and cannot be switched off, and in a room that several pairs of hands reach during one service that last property is what keeps the plan alive. A machine buys a level you can set and a schedule you can programme, and those start to matter only once the source is serving a washroom lobby or two washrooms off one lobby.
Is a reed strong enough for a washroom?
For a room under about 80 sq ft, yes, because a washroom is a very small volume - 60 sq ft at 3m is about 5.5m3. The honest limit is that a reed is a volume control rather than a range control: reach is set by exposed reed surface, so a bigger bottle buys you months and not metres. Two bottles in a lobby give two small pockets rather than one scented room, which is where a machine takes over.
Why is a reed's lack of an off switch an advantage here?
Because a washroom is unattended for hours and is reached during one service by a cleaner, a host and a manager. Any machine with a button will eventually be found switched off, unplugged or turned down by somebody being helpful. A bottle offers nobody that opportunity, so the room at half past eleven is the room at seven. In a foyer the same property is a genuine fault, because some evenings you want a quiet room.
What does each option cost?
Mountain Breeze is Rs 849 for 50ml, which runs 6 to 8 weeks, or Rs 1,349 for 130ml, which runs 14 to 18. The citrus-mint Morning Freshness is Rs 749 and Rs 1,249. Reed refills are 300ml at Rs 2,399 and 500ml at Rs 3,499. On the powered side a Boond is Rs 899 for about 150 sq ft on roughly six hours a fill, and a Sukoon is Rs 1,899 for about 270 to 320 sq ft with three 15ml fragrances included.
Should I put a Vaayu in the washrooms instead?
No. For any single washroom a Vaayu at Rs 11,999 is the wrong buy - it is rated to 1000m3 and a washroom is a few cubic metres, so it would idle at the bottom of its range. It earns its place only when a washroom lobby, a corridor and a foyer form one connected envelope and you want one machine, one setting and a mounting position that keeps the output away from the dining room.
A bottle that cannot be switched off, or a dial somebody will turn
SOSA — Clinic Scenting for fine-dining restaurants and restaurant groups
The SOSA Mountain Breeze reed (₹849 for 50ml, ₹1,349 for 130ml) is pine, sage and cedar - continuous, silent, unpowered and impossible to switch off, which under about 80 sq ft wins this comparison outright; inside the washroom itself the citrus-mint Morning Freshness at ₹749 is the better direction. Past a lobby, a Boond at ₹899 or a Sukoon at ₹1,899 buys you a level you can set, and a Vaayu at ₹11,999 is the wrong buy for any single washroom. 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 unpowered reed for a restaurant washroom lobby or corridor, with nothing to switch off (₹849)
- How do I keep a high-traffic restaurant washroom smelling pleasant all evening?
- Should fine-dining restaurant washrooms have a signature fragrance?
- 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.