★ SOSA Vaayu · what guests should smell
The correct answer to what a guest should smell is clean air first, one quiet designed scent second, and never a fragrance sitting on top of a problem
★ ★ ★ ★ ★
★★★★★
"I was scenting over a drain smell for a month without realising. Ten minutes with a bucket of water down the traps did what three diffusers could not."
1BHK listing · drain traps
★★★★★
"Guests never say the flat smells nice. They say it smells fresh. I have come round to thinking that is the higher compliment."
Two-key property
★★★★★
"The strongest thing I owned was the worst thing I owned. Swapping to something quieter stopped the complaints from guests who found it too much."
Apartment listing · scent change
★★★★★
"My cleaner used a phenyl floor wash and the whole property announced it. Changing the cleaning product mattered more than the fragrance did."
Turnover cleaning routine
★★★★★
"One machine on a timer across the open floor gave me one smell instead of four. The seams between rooms were the thing guests noticed."
1,800 sq ft villa · Vaayu
★★★★★
"Do check on refill supply before you buy. Mine came with 400ml and there is no separate refill bottle sold at the moment, which I would have liked to know earlier."
Large listing · supply planning
★★★★★
"I was scenting over a drain smell for a month without realising. Ten minutes with a bucket of water down the traps did what three diffusers could not."
1BHK listing · drain traps
★★★★★
"Guests never say the flat smells nice. They say it smells fresh. I have come round to thinking that is the higher compliment."
Two-key property
★★★★★
"The strongest thing I owned was the worst thing I owned. Swapping to something quieter stopped the complaints from guests who found it too much."
Apartment listing · scent change
★★★★★
"My cleaner used a phenyl floor wash and the whole property announced it. Changing the cleaning product mattered more than the fragrance did."
Turnover cleaning routine
★★★★★
"One machine on a timer across the open floor gave me one smell instead of four. The seams between rooms were the thing guests noticed."
1,800 sq ft villa · Vaayu
★★★★★
"Do check on refill supply before you buy. Mine came with 400ml and there is no separate refill bottle sold at the moment, which I would have liked to know earlier."
Large listing · supply planning
✓ Ventilate first, scent second — fragrance never removes a smell, it joins it ✓ Vaayu covers up to 1000m³ · 400ml per 90+ days · no separate Vaayu refill sold today ✓ No health, air-purification or odour-elimination claims · no claims about ratings or reviews
Founder Diaries · Airbnb Scenting · What Guests Smell
What "clean" smells like: nothing in particular. Not lemon, not pine, not phenyl. Cleaning products that announce themselves read as concealment to a guest, not as hygiene.
The register that travels best: cool and transparent — white tea, bergamot, cedar, citrus, light green notes. Loud, sweet or heavily floral scents divide a guest population you cannot screen.
The limit: fragrance adds a smell. It does not remove one, purify air or clean anything, and no one can promise it changes a rating, a review or a booking.
Evening Calm₹799 · softestOnce the air is clean, a small amount of designed fragrance changes the character of an arrival — the room feels tended rather than merely empty. The mistake is scale. A property housing strangers is not a shop or a lobby you pass through; it is somewhere a person will sleep for four nights, possibly with a child, possibly with a headache, possibly with an opinion about jasmine formed in 1997. The correct intensity is one at which a guest notices the room and not the fragrance. Cool, transparent registers — white tea, bergamot, cedar, citrus, light greens — travel across the widest range of people and interiors. Our softest reed compositions sit at 8.9 on our internal scale at six reeds; in a small entry, four reeds instead of six is a perfectly sensible way to go quieter still.
Morning Freshness · clean and coldfrom ₹749Shop → 
Evening Calm · the softestfrom ₹799Shop → 
Vaayu · one scent, no seams₹11,999Shop →
SOSA Vaayu specifications (verified from the live product page, August 2026): ₹11,999 (the product page displays a rounded ₹12,000). Waterless cold-air nebulisation — pressurised air atomises undiluted fragrance oil into a dry nano-mist; no water, no heat, residue-free. Coverage up to 1000m³, about 2,000–3,000 sq ft. 400ml refillable tank, 90+ days per fill at a mid intensity setting. Bluetooth app plus onboard buttons, 1h / 4h / 8h / 24h timers, adjustable mist intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. 165 × 80.5 × 215 mm, 0.9 kg, black or white. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. Ships with four SOSA Hotel Collection fragrances at 100ml each (400ml in total) in one of three combos chosen at checkout. SOSA does not currently sell a separate Vaayu refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, and buyers who need long-term supply should confirm current refill availability with SOSA before purchasing. The cold-air oil supplied with the Vaayu is a different product from the water-based Hotel Collection sold for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799), which must not be used in a Vaayu despite sharing scent names. Other SOSA machines: Boond 300ml ₹899 (~150 sq ft) · Sukoon 500ml ₹1,899 (270–320 sq ft) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine, not a coverage upgrade) · Aangan ₹25,999 (~8,000–10,000 sq ft) · Meenar ₹38,500 (12,000–18,000 sq ft) · Safar car diffuser ₹3,999. Reed diffusers 50ml ₹749–₹849 (6–8 weeks) · 130ml ₹1,249–₹1,349 (14–18 weeks) · duo sets ₹1,498–₹1,598 · oil-only refills 300ml ₹2,399 / 500ml ₹3,499. Runtime, consumption and coverage figures are manufacturer specifications and vary with intensity setting, run hours, ceiling height, ventilation and season; any per-month or per-day figure in this guide is arithmetic on those specifications, not a measurement. Electricity costs vary by state tariff. No claim is made that scenting affects ratings, reviews, bookings, occupancy, revenue, health, mood or air quality. Free shipping above ₹499. A portion of every order supports girl-child education through Nanhi Kali. Prices subject to change — see the live product pages.
Hosts usually ask me which fragrance a guest should meet at the door. It is the second question. The first is whether the guest should meet a fragrance at all, and for a great many properties the honest answer is that clean, still, unremarkable air already beats anything you could add. There is a hierarchy here, and it runs in an order most scenting advice gets backwards: nothing wrong is better than something lovely, something lovely is better than something loud, and anything at all is better than a fragrance sitting on top of a problem — because a masked smell reads worse to a stranger than the smell it was hiding.
Quick answers — read this first
The hierarchy, best to worst: clean neutral air · one quiet designed scent · a loud scent · a scent layered over a problem · the problem on its own. Note that masking sits below the untreated smell.What "clean" smells like: nothing in particular. Not lemon, not pine, not phenyl. Cleaning products that announce themselves read as concealment to a guest, not as hygiene.
The register that travels best: cool and transparent — white tea, bergamot, cedar, citrus, light green notes. Loud, sweet or heavily floral scents divide a guest population you cannot screen.
The limit: fragrance adds a smell. It does not remove one, purify air or clean anything, and no one can promise it changes a rating, a review or a booking.
The short answer
Short answer: a guest should smell clean air, and then — very quietly, underneath it — one scent that agrees with the room. In that order. Ventilate the property for twenty minutes at the start of every turnover, remove the sources rather than covering them, and only then let a restrained fragrance establish in the hour or two before check-in. If you can only do one of those two things, do the ventilation.
Why masking ranks lowest: a fragrance does not replace an existing smell; it joins it, and the human nose is extremely good at separating the two. What the guest perceives is not "pleasant" but "something was covered up here", which is a worse message than a slightly stale flat honestly presented.
Shop: the cleanest register in our reed range is Morning Freshness at ₹749 — Malabar lemon, peppermint and Nilgiri eucalyptus. For one room on a schedule, the Sukoon is ₹1,899. For a whole open floor, the waterless Vaayu is ₹11,999. Free shipping above ₹499.
In this guide
Cleanest register we make
Morning Freshness · from ₹749
One room, only when you want it
Sukoon · 270–320 sq ft · ₹1,899
No seams between rooms
Vaayu · up to 1000m³ · ₹11,999
Straight answer
What should an Airbnb smell like when a guest walks in?
1. Of nothing identifiable, first. The target state is air that gives a guest no information at all — no last stay, no cooking, no damp, no drain, and equally no cleaning product. Neutral is not a failure to scent; it is the platform everything else sits on, and a property that achieves only this is already ahead of most listings.
2. Then, underneath, one quiet designed scent. Present enough to register in the first breath at the threshold, quiet enough that a guest could not name it from the sofa. If a guest can describe your fragrance in detail after ten minutes, it is louder than it should be for a property housing strangers.
3. Not of cleaning. Phenyl, bleach, strong pine floor washes and citrus surface sprays are the most common arrival smell in Indian listings, and they do not read as clean to a guest. They read as recent — as something done just now, possibly to something.
4. Never of fragrance over a problem. This is the one ranking below doing nothing. Deal with the source: bins, drain traps, the fridge, damp cloths, the washing machine door, shoes, soft furnishings that hold smoke. Fragrance is not a remedy and I will not sell it to you as one.
5. The same in every connected room. A seam — one scent in the hall, a different one in the living room — is noticed in the first thirty seconds of walking through. One source covering the whole connected volume beats four sources covering it in patches.
6. And with the claim kept honest. All of this is about what arriving feels like. No one can promise you that scenting a property moves a rating, a review score, a booking rate or a nightly price, because no such data exists. Nor does fragrance purify air, remove odours or affect anybody's health or mood.
Our fragrances are composed in small batches in Pune, the machines are made in India, and a portion of every order supports girl-child education through Nanhi Kali.
2. Then, underneath, one quiet designed scent. Present enough to register in the first breath at the threshold, quiet enough that a guest could not name it from the sofa. If a guest can describe your fragrance in detail after ten minutes, it is louder than it should be for a property housing strangers.
3. Not of cleaning. Phenyl, bleach, strong pine floor washes and citrus surface sprays are the most common arrival smell in Indian listings, and they do not read as clean to a guest. They read as recent — as something done just now, possibly to something.
4. Never of fragrance over a problem. This is the one ranking below doing nothing. Deal with the source: bins, drain traps, the fridge, damp cloths, the washing machine door, shoes, soft furnishings that hold smoke. Fragrance is not a remedy and I will not sell it to you as one.
5. The same in every connected room. A seam — one scent in the hall, a different one in the living room — is noticed in the first thirty seconds of walking through. One source covering the whole connected volume beats four sources covering it in patches.
6. And with the claim kept honest. All of this is about what arriving feels like. No one can promise you that scenting a property moves a rating, a review score, a booking rate or a nightly price, because no such data exists. Nor does fragrance purify air, remove odours or affect anybody's health or mood.
Our fragrances are composed in small batches in Pune, the machines are made in India, and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: clean air first, one quiet scent second, and nothing at all rather than a fragrance over a problem. Not lemon cleaner, not phenyl, not a loud floral. Morning Freshness from ₹749 for an entry, Sukoon ₹1,899 for a room, Vaayu ₹11,999 for a whole open floor. Ventilate before you scent, every time.
Reads as clean rather than as perfume
SOSA Morning Freshness · lemon, peppermint & eucalyptus ₹749 / 50ml
Malabar lemon over peppermint and Nilgiri eucalyptus — cold, transparent and green rather than sweet. It sits at 9.0 on our own internal strength scale at six reeds, which is a position on our scale rather than an industry measure, and it reads louder than it measures because cold notes always do. In a let property it does the job a cleaning product pretends to do, without announcing that anything has just been cleaned. 130ml ₹1,249 for 14–18 weeks. Alcohol-free, phthalate-free, on a heat-stable CCT base, six fibre reeds, flip weekly with gloves.
Part one — the three things a guest can actually meet at your door
Every arrival lands in one of three states, and hosts tend to aim at the third when the second is what guests reward and the first is what most properties need first. What follows is not a taste argument. It is about what a stranger's nose does with ambiguous information in a building they do not know — and an unfamiliar building is exactly the situation in which a person is most alert to smells that suggest something is being managed.
1
STATE ONE · NEUTRAL
Clean air, which is an absence rather than a smell
The single most underrated arrival in hospitality is air that tells a guest nothing. It is achieved with ventilation and source removal, costs nothing, and is the state a great many listings never reach because the host went straight to fragrance. Twenty minutes of open windows at the start of a turnover moves more of this problem than any product I sell. It matters most in Indian properties, where a flat closed since the last checkout in July has been sitting at high humidity with no air exchange for hours, and where the resulting smell is soft, damp and hard for the host to notice because they walked in ten minutes ago and adapted. Neutral is not a compromise. It is the floor beneath everything else, and if your turnover has time for exactly one thing, this is the one.
The order that never changes: ventilate, remove sources, close up, then scent. Skipping the first two makes the fourth worse, not better.
2
STATE TWO · ONE QUIET DESIGNED SCENT
The state worth aiming for, and it is quieter than you think
Evening Calm₹799 · softestOnce the air is clean, a small amount of designed fragrance changes the character of an arrival — the room feels tended rather than merely empty. The mistake is scale. A property housing strangers is not a shop or a lobby you pass through; it is somewhere a person will sleep for four nights, possibly with a child, possibly with a headache, possibly with an opinion about jasmine formed in 1997. The correct intensity is one at which a guest notices the room and not the fragrance. Cool, transparent registers — white tea, bergamot, cedar, citrus, light greens — travel across the widest range of people and interiors. Our softest reed compositions sit at 8.9 on our internal scale at six reeds; in a small entry, four reeds instead of six is a perfectly sensible way to go quieter still.
The calibration: if a guest can describe the scent in detail after ten minutes indoors, it is too loud for a let property.
3
STATE THREE · MASKED
The state that ranks below doing nothing
Fragrance does not delete a smell. It occupies the same air as it, and a nose separates the two components readily — particularly a nose that has just arrived from outside and is taking its one clean reading. What a guest perceives in a masked property is a compound: sweetness plus damp, citrus plus drain, floral plus cigarette. That compound carries an extra piece of information the original smell did not: that somebody knew. It is the difference between a flat that is a bit tired and a flat that is being managed, and only one of those is worrying to walk into. This is also why I will not describe any SOSA product as an odour eliminator or an air purifier. A scent machine adds fragrance to air. It does not clean it, it does not remove anything, and any brand telling you otherwise is selling you a chemistry that does not exist.
Part two — the hierarchy, ranked from best arrival to worst
Set out as a ranking, because the ordering is the whole point of this page and it is the part that surprises hosts. Note that positions four and five are the wrong way round from how most people assume they work.
What a guest meets at the door
Five possible arrivals, best to worst
| Rank | What the air is doing | How it reads to a stranger | What produces it | Cost to reach |
|---|---|---|---|---|
| 1 · Neutral, then one quiet scent ★ | Clean air with a designed scent underneath it | Tended. Considered. Nothing to think about | Ventilation plus one restrained source, established early | ₹749 upwards |
| 2 · Neutral alone | Clean air carrying no information at all | Fine. Unremarkable in the best sense | Twenty minutes of windows and source removal | Free |
| 3 · Loud scent over clean air | A strong fragrance in an otherwise clean property | Divisive — lovely to some guests, oppressive to others | Over-dosing, or a machine at high intensity in a small volume | The same money, spent worse |
| 4 · The original smell, untreated | A tired or stale property, honestly presented | Disappointing, but not suspicious | A missed turnover, or a property left closed | Free, and recoverable |
| 5 · Fragrance layered over a problem | Two smells in the same air, separable by anyone | Concealment. The worst message of the five | Scenting instead of ventilating and fixing | Money spent making it worse |
| The honest caveat: this ranking describes how an arrival is likely to be experienced. It is not a performance claim — there is no data connecting any of these states to review scores, ratings, bookings, occupancy or nightly rate, and nobody can promise you one. Nor is any of it a health or air-quality claim: fragrance adds a smell, it does not purify, disinfect or remove anything. Ventilate first. | ||||
Shop this guide
Quiet registers, and the machines that hold them evenly
Morning Freshness · clean and coldfrom ₹749Shop → Evening Calm · the softestfrom ₹799Shop → Vaayu · one scent, no seams₹11,999Shop →
The SOSA principle
A masked smell carries information the original did not: that somebody knew.
Which is why masking ranks below leaving it alone. Remove the source, ventilate, and let fragrance do the only job it can honestly do — adding something, to air that is already clean.
Part three — when you should not scent an Airbnb at all
There are four situations in which my advice to a host is to add nothing, and I would rather set them out plainly than let the rest of this page imply that every property benefits. The first is any property with an active source you have not dealt with. Damp, a dry drain trap, a fridge seal, an unused bathroom, a soft furnishing holding cigarette smoke, a chimney or a blocked kitchen extract — all of these keep producing while your fragrance runs, and the result is position five in the table above. The correct sequence is diagnosis, then repair, then ventilation, and scenting only if you still want to. A bucket of water down every trap in an unused bathroom, weekly, solves more Indian arrival complaints than any product on this site.
The second is a guest population you cannot make assumptions about. Pet-friendly listings, properties marketed to families with infants, listings where guests have previously written to you about asthma or migraine, and very small properties where there is no room to escape a fragrance. In a 300 square foot studio there is no far end. In those cases I would run nothing, or at most a single reed bottle at four reeds in the entry — low, passive, removable in three seconds if a guest asks. And whatever you run, write one line in the listing saying the property is lightly scented. A guest who has been told can decide before they book; a guest who discovers it on arrival cannot.
The third is a property where the cleaning has not been solved. Fragrance applied to an under-cleaned flat is not a shortcut to a clean one; it is the most conspicuous possible way of admitting the gap. And the fourth, which is really a scale question: if your connected volume is small, do not buy a machine built for 1000m³. The Vaayu is specified up to about 2,000–3,000 sq ft depending on ceiling height. Run at that capability inside a compact flat, the correct setting would be so low that a ₹749 reed bottle would have done the same work. The honest ladder is reeds for one small room, a Sukoon at ₹1,899 for one normal room on demand, and a Vaayu only when a single open volume genuinely defeats both.
Clean does not smell of lemon. Clean does not smell of anything — that is the whole of what makes it read as clean.
— Sonal Sahani, SOSA
Part four — every arrival smell, and the fix that actually works
The practical half. Hosts arrive at fragrance because something smelled wrong and fragrance seemed like the answer to it. In almost every case the answer is in this table instead, and the fragrance column is deliberately the least interesting one on the page.
The source audit
What the smell is, and what genuinely removes it
| What the guest is smelling | Where it is coming from | The fix that works | What fragrance can do here |
|---|---|---|---|
| Closed, soft, faintly damp ★ | No air exchange since the last checkout, high humidity | Twenty minutes of open windows at the start of the clean | Nothing until the air has been changed — then a great deal |
| Sour, sweetish, near a bathroom | A dry drain trap in a room nobody used | A bucket of water down every trap, weekly | Nothing. This is a plumbing job |
| Sharp, chemical, clinical | Phenyl or bleach floor wash used just before check-in | Change the product, or clean earlier and ventilate after | Nothing — you would be stacking two announcements |
| Old cooking | Oil in the extractor, and soft furnishings near the kitchen | Extractor on, window ten minutes, close up, then wait half an hour | Only after the air is clear. Never over live cooking |
| The last guest | Bedding, curtains, upholstery, the bin, the washing machine door | Launder, empty, leave the machine door open between stays | A light scent once the textiles are dealt with |
| Nothing wrong, but nothing at all | A correctly cleaned, correctly ventilated property | You have already done the hard part | This is where fragrance belongs — reeds from ₹749, Sukoon ₹1,899, Vaayu ₹11,999 |
Honest notes for buyers: SOSA makes no odour-elimination, air-purification, antibacterial, health, mood or sleep claims for any product on this page. A diffuser adds fragrance to air; ventilation and cleaning are what deal with a smell. The waterless Vaayu at ₹11,999 ships with four Hotel Collection fragrances at 100ml each — 400ml in total — and SOSA does not currently sell a separate Vaayu refill oil; that 400ml is the whole supply available today, so check current refill availability with SOSA before buying if long-term supply matters to you. The cold-air oil in the box is a different product from the water-based Hotel Collection for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799) despite the shared scent names, and the two are not interchangeable. Reed oil goes in no machine. Reed strength figures are positions on SOSA's own internal scale at six reeds, not an industry standard. Stand reed bottles on a tray, keep all fragrance away from children and pets, and note that no claim is made about ratings, reviews, bookings or revenue. Free shipping above ₹499; a portion of every order supports girl-child education through Nanhi Kali.
When the problem is seams, not strength
SOSA Vaayu · waterless cold-air machine ₹11,999
Four separate diffusers in an open-plan property produce four scents that meet each other in the middle, and guests read the seams as untidiness. One cold-air unit covers up to 1000m³ — about 2,000 to 3,000 sq ft depending on ceiling height — from a single point, atomising undiluted oil into a dry mist with no water and no added humidity. Timers at 1h, 4h, 8h and 24h, adjustable intensity, auto-stop, Bluetooth app, a key-lock so guests cannot change it, and under 38 dB. Below roughly 800–1,000 sq ft of connected space this is more machine than the property needs.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The most useful lesson of my training had nothing to do with composing. It was learning to smell a room in parts — to notice that what I had taken for one impression was three things arriving together, and that the pleasant one was often the smallest of them. Guests do this too, without knowing they are doing it. They cannot name the components, but they can tell that there are components, and a fragrance sitting on top of something is one of the easiest patterns in the world to detect.
Which is why I have never been comfortable with the language this category uses. Nothing I make eliminates an odour. Nothing I make purifies air. A diffuser puts fragrance into the air, and everything else is a job for a window, a cloth and a bucket of water down the drain traps.
If you take one thing from this page, make it the order. Ventilate, fix, close up, then scent — and if the turnover is tight and you can only do one, open the windows. It is free, it is faster than anything you could buy from me, and it does more. Everything we make is composed in Pune, the machines are made in India, and a portion of every order funds a girl's classroom through Nanhi Kali.
Frequently asked questions
Should an Airbnb smell of anything at all?
It should smell clean first. A quiet designed scent on top of clean air is the best arrival, but neutral alone is a perfectly good one and it is free. What you want to avoid is a fragrance sitting over an untreated smell, which reads worse to a guest than the untreated smell on its own.
Do guests like strong scents in a rental?
Some do and some very much do not, and you cannot screen for it. A property housing strangers should run quieter than a home you live in — noticeable at the threshold, unnoticeable from the sofa. If a guest can describe the fragrance in detail after ten minutes, turn it down or use fewer reeds.
Will a diffuser get rid of a bad smell?
No, and we do not claim it will. Fragrance joins an existing smell rather than removing it, and a guest's nose separates the two. Ventilation, cleaning and dealing with the source — drains, bins, textiles, the fridge — are what remove a smell. Scent goes on afterwards, on air that is already clean.
Is lemon or pine cleaner-scent a good choice for a listing?
Not the cleaning-product version of it. Those accords are so strongly associated with disinfection that they suggest something was just cleaned, and by extension that something needed cleaning. A composed citrus like Morning Freshness reads quite differently — cold and green rather than clinical.
Does scenting my property improve reviews?
Nobody can promise that, and we will not. There is no data linking home fragrance to review scores, ratings, bookings, occupancy or nightly rate. The reason to do it is the guest's experience of the first breath, which is real, describable and worth caring about by itself.
What guests should smell · 2026
Nothing wrong first. Something quiet second. And never fragrance over a problem
Morning Freshness reed diffusers from ₹749 for 50ml and ₹1,249 for 130ml, six fibre reeds in every bottle. One room on a schedule is a Sukoon at ₹1,899. A whole open-plan floor is the waterless Vaayu at ₹11,999, covering up to 1000m³ with timers, app control and a key-lock. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
Shop Morning Freshness → Vaayu ₹11,999
Continue the read
More on the Airbnb arrival
- How to make your Airbnb smell amazing when guests walk in — the ninety-second window.
- The best entrance fragrance — why the door wants a different scent from the living room.
- Keeping a property fresh between stays and the luxury first impression.
- The complete arrival scenting guide — the whole cluster in one place.
- Brand: the SOSA founder story.
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, on what a guest should and should not meet at the door of a let property. The hierarchy set out here is SOSA's editorial position and working guidance from host correspondence, not research. No odour-elimination, air-purification, antibacterial, health, mood or sleep claim is made for any product; fragrance adds a smell and does not remove one. No claim is made that scenting affects ratings, reviews, bookings, occupancy, nightly rate or revenue. Ventilate before scenting.SOSA Vaayu specifications (verified from the live product page, August 2026): ₹11,999 (the product page displays a rounded ₹12,000). Waterless cold-air nebulisation — pressurised air atomises undiluted fragrance oil into a dry nano-mist; no water, no heat, residue-free. Coverage up to 1000m³, about 2,000–3,000 sq ft. 400ml refillable tank, 90+ days per fill at a mid intensity setting. Bluetooth app plus onboard buttons, 1h / 4h / 8h / 24h timers, adjustable mist intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. 165 × 80.5 × 215 mm, 0.9 kg, black or white. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. Ships with four SOSA Hotel Collection fragrances at 100ml each (400ml in total) in one of three combos chosen at checkout. SOSA does not currently sell a separate Vaayu refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, and buyers who need long-term supply should confirm current refill availability with SOSA before purchasing. The cold-air oil supplied with the Vaayu is a different product from the water-based Hotel Collection sold for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799), which must not be used in a Vaayu despite sharing scent names. Other SOSA machines: Boond 300ml ₹899 (~150 sq ft) · Sukoon 500ml ₹1,899 (270–320 sq ft) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine, not a coverage upgrade) · Aangan ₹25,999 (~8,000–10,000 sq ft) · Meenar ₹38,500 (12,000–18,000 sq ft) · Safar car diffuser ₹3,999. Reed diffusers 50ml ₹749–₹849 (6–8 weeks) · 130ml ₹1,249–₹1,349 (14–18 weeks) · duo sets ₹1,498–₹1,598 · oil-only refills 300ml ₹2,399 / 500ml ₹3,499. Runtime, consumption and coverage figures are manufacturer specifications and vary with intensity setting, run hours, ceiling height, ventilation and season; any per-month or per-day figure in this guide is arithmetic on those specifications, not a measurement. Electricity costs vary by state tariff. No claim is made that scenting affects ratings, reviews, bookings, occupancy, revenue, health, mood or air quality. Free shipping above ₹499. A portion of every order supports girl-child education through Nanhi Kali. Prices subject to change — see the live product pages.