★ SOSA for Houses That Stay Shut
A closed house does not make a new smell. It concentrates the ones it was already making
★ ★ ★ ★ ★
★★★★★
"The drains were it. Our Lonavala house smelled faintly of sewage every single arrival and we had blamed the plumbing for three years. A mug of water down each trap on the way out solved it."
SOSA Vaayu · weekend villa
★★★★★
"Sonal spent most of the call telling me to air the mattresses and wet the drains, and about a minute on the machine. That is why I bought the machine."
SOSA Vaayu · honest advice
★★★★★
"The bedrooms were the worst part and it was the mattresses, not the room. Now the caretaker strips them and stands them up between visits and the difference is embarrassing."
SOSA Vaayu · closed bedrooms
★★★★★
"The deciding factor was that there is no water in it. Our last diffuser sat in a shut house for six weeks with a full tank and I would rather not describe what came out of it."
SOSA Vaayu · waterless
★★★★★
"Wardrobes left shut on an outside wall were half our problem. We leave them open now when we lock up and the clothes smell of nothing instead of the cupboard."
SOSA Vaayu · source control first
★★★★★
"The routine is fifteen minutes: windows, fans, drains, mattresses out. Then the machine. Guests think we have staff living there."
SOSA Vaayu · arrival routine
★★★★★
"The drains were it. Our Lonavala house smelled faintly of sewage every single arrival and we had blamed the plumbing for three years. A mug of water down each trap on the way out solved it."
SOSA Vaayu · weekend villa
★★★★★
"Sonal spent most of the call telling me to air the mattresses and wet the drains, and about a minute on the machine. That is why I bought the machine."
SOSA Vaayu · honest advice
★★★★★
"The bedrooms were the worst part and it was the mattresses, not the room. Now the caretaker strips them and stands them up between visits and the difference is embarrassing."
SOSA Vaayu · closed bedrooms
★★★★★
"The deciding factor was that there is no water in it. Our last diffuser sat in a shut house for six weeks with a full tank and I would rather not describe what came out of it."
SOSA Vaayu · waterless
★★★★★
"Wardrobes left shut on an outside wall were half our problem. We leave them open now when we lock up and the clothes smell of nothing instead of the cupboard."
SOSA Vaayu · source control first
★★★★★
"The routine is fifteen minutes: windows, fans, drains, mattresses out. Then the machine. Guests think we have staff living there."
SOSA Vaayu · arrival routine
★ What we would put in a house that stays shut
SOSA VaayuOne machine for a whole floorView ₹11,999
SOSA VaayuWaterless, so nothing stands in a tankView ₹11,999
SOSA VaayuApp timers, so it runs before you arriveView ₹11,999
✓ We will tell you to open the windows and wet the drains before we sell you anything - fragrance is a finish, not a fix ✓ One Vaayu is rated to 1000m³ - about 2,000-3,000 sq ft - waterless, under 38dB, 400ml tank lasting up to about 75 days ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Home Problems · Houses and Rooms That Stay Closed
Is a stale closed-house smell dangerous? We make no health claim either way, and a persistent smell is worth a professional look rather than a diffuser. What we can say plainly is what the smell usually is: accumulated off-gassing and re-released residue in an unventilated space, trapped moisture in soft materials, and often sewer air from a dried-out drain trap. If the smell is sewer-like, refill every trap with water. If it is musty and mushroomy, you are looking for moisture or microbial growth in cushions, mattresses, wardrobes or a leak, and that needs drying and cleaning, not fragrance.
How long does it take for a closed house to go stale? In a warm, humid Indian city, noticeably within three or four days, and unmistakably within a week. Drain traps take longer, usually one to three weeks depending on temperature, which is why a house that smells fine after a weekend can smell of drains after a fortnight. Airing it out takes far less time than accumulating it did: an hour of genuine cross-ventilation with fans running does most of the work, though damp mattresses and cushions need a half day in moving air.
See the SOSA Vaayu Book a scenting plan
Facts verified 24 August 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 a 400ml refillable tank lasting up to about 75 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers with adjustable intensity, operation under 38dB, DC 12V/1A at 5W, dimensions 165 x 80.5 x 215mm at 0.9kg, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. It uses no water and no heat, so there is no dampness and no residue. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. 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.
You unlock the door after a week away and the house greets you with a flat, heavy, faintly sour smell that was not there when you left. Nothing has gone wrong. A closed house does not invent a new smell; it simply keeps making the ones it always makes, with nowhere for any of them to go. Here is exactly what is accumulating, in what order to deal with it, and the one cause almost nobody checks.
Quick answers — read this first
Why does my house smell stale after being closed? Because a closed house has no air exchange, so everything the house emits accumulates instead of leaving. Furniture, adhesives, paint, carpet, foam and engineered board off-gas continuously. Cooking oil and body oils held in curtains, upholstery and rugs keep re-releasing as the rooms warm up. Moisture in mattresses, cushions and wardrobes has nowhere to evaporate to. On top of that, the water seal in floor traps and unused bathroom drains evaporates in an empty house and lets sewer air back into the rooms, which is one of the most common causes of a shut-house smell and almost nobody checks it. The fix is air exchange, water in the drains and drying the soft materials out. A SOSA Vaayu (₹11,999) is for afterwards, to hold a fragrance over a house that is already aired.Is a stale closed-house smell dangerous? We make no health claim either way, and a persistent smell is worth a professional look rather than a diffuser. What we can say plainly is what the smell usually is: accumulated off-gassing and re-released residue in an unventilated space, trapped moisture in soft materials, and often sewer air from a dried-out drain trap. If the smell is sewer-like, refill every trap with water. If it is musty and mushroomy, you are looking for moisture or microbial growth in cushions, mattresses, wardrobes or a leak, and that needs drying and cleaning, not fragrance.
How long does it take for a closed house to go stale? In a warm, humid Indian city, noticeably within three or four days, and unmistakably within a week. Drain traps take longer, usually one to three weeks depending on temperature, which is why a house that smells fine after a weekend can smell of drains after a fortnight. Airing it out takes far less time than accumulating it did: an hour of genuine cross-ventilation with fans running does most of the work, though damp mattresses and cushions need a half day in moving air.
The short answer
Short answer: because a closed house has no air exchange, so everything it emits builds up instead of leaving - off-gassing from furniture, adhesives, paint and carpet, cooking residue re-releasing from textiles, and moisture trapped in mattresses and cushions. Very often there is a second smell on top of it: the water seal in floor traps and unused bathroom drains evaporates in an empty house and lets sewer air back in. Open everything and cross-ventilate, run fans, pour water down every drain, air the mattresses and cushions, and scent only afterwards.
The pick: once the house is genuinely aired, one SOSA Vaayu (₹11,999) on the main air path of the floor. It is waterless, so nothing stands in a tank while the house is shut, and the app timers let it run before you arrive.
Next step: tell us how long the house stays closed, how big it is and what the smell is like, and we will tell you what to fix before you spend anything - ask us what fits your home.
In this guide
Nothing new appears in a shut house. Everything a house normally emits keeps being emitted, and with the windows closed there is no air exchange to carry any of it away. A dried-out drain trap adds a second, quite different smell on top, and it is the one almost nobody checks.
The machines on this page - tap to see them
For the whole floor
SOSA Vaayu · ₹11,999
The fix, step by step
Freshening a house closed for days
Tell us what it smells like
Free home scenting advice
Straight answer
What is actually happening inside a house that has been shut up for a week?
Three processes, running quietly the whole time you were away, plus a fourth that is a different problem altogether. The first is off-gassing. Furniture, engineered board, adhesives, foam, paint, varnish, carpet and its underlay all release small amounts of volatile compounds continuously, and newer material releases more. In a lived-in house you never notice because the air changes several times a day. In a shut house it accumulates, which is why the smell is strongest in the newest room and in the room with the most fitted furniture. The second is re-release from textiles. Every time you cook, aerosolised oil lands on curtains, sofa upholstery, cushion covers and rugs. Body oils and hair oils go into mattresses and pillows. Those residues do not sit still; as the room warms through the afternoon, they keep evaporating back out. Closed up, that returns to the same air over and over. The third is moisture. Mattresses, cushions, sofa foam, rugs, wardrobes and stored clothing all hold water, and in a shut house with no airflow there is nowhere for it to evaporate to. In a humid coastal or monsoon region that is the point at which the smell stops being merely stale and starts being musty, because damp material supports microbial growth, and that is a genuine clean-and-dry problem rather than a ventilation one. Then the fourth, which is the one people miss for years. The one nobody mentions: in a house that has stood empty, the water seal in every floor trap, basin and unused bathroom drain slowly evaporates. Once that seal is gone, the drain is an open pipe and sewer air comes back up into the room. It is one of the most common causes of a shut-house smell and it costs nothing to fix - pour a mug or two of water down every drain, floor trap and unused bathroom in the house. If the smell has a sewer-like or drain-like edge to it, especially near a bathroom you never use, that is almost certainly what it is, and no amount of cleaning the rest of the house will touch it. So the order is fixed: open everything and cross-ventilate, two openings on opposite sides so air actually crosses; run fans including the exhaust fans, because moving air does more than open windows alone; pour water down every drain and floor trap; air the mattresses and cushions, stripped and stood up in moving air; and only then scent. Fragrance does not remove odour molecules. It adds fragrance on top of them, so scent sprayed into a shut-up house gives you both smells at once. A diffuser is not an air purifier, it does not disinfect, dehumidify or remove off-gassing, and it makes no health claim. Open the house, move the air, wet the drains, dry the soft things, and only then scent the space. Once the house is genuinely aired, one SOSA Vaayu (₹11,999) is rated to 1000m³, about 2,000-3,000 sq ft, and holds a whole floor at a low level. A free home scenting plan starts with what to fix, and a portion of every order supports girl-child education through Nanhi Kali.
A closed house smells stale because nothing leaves. Off-gassing, textile residue and trapped moisture accumulate, and dried-out drain traps let sewer air in. Cross-ventilate, run fans, wet the drains, air the beds, then scent.
Once the air has actually been changed, the job stops being removal and becomes holding a good baseline. That is what a machine is for: one SOSA Vaayu, waterless so nothing stands in a tank in an empty house, rated to 1000m³ (about 2,000-3,000 sq ft), under 38dB, with a 400ml tank lasting up to about 75 days and 1h/4h/8h/24h timers.
See the SOSA Vaayu ₹11,999 Ask what fits your home
The order that works
Air exchange, drains, drying, then scent - never the other way round
What to use once the house has been properly aired
Nothing here is worth buying until the house has had an hour of real cross-ventilation and every drain has had water poured down it. After that, the question is simply how much air you are trying to hold a fragrance across.
The whole floor, held at a low level
SOSA Vaayu
Waterless cold-air nebuliser at ₹11,999, rated to 1000m³ - about 2,000-3,000 sq ft. 400ml refillable tank lasting up to about 75 days, Bluetooth app with 1h/4h/8h/24h timers and adjustable intensity, under 38dB. No water, no heat, no dampness and no residue.
From ₹11,999
Why waterless is the point in a closed house
SOSA Vaayu - nothing standing in a tank
An ultrasonic diffuser left full in a house nobody enters for a month is a tank of standing water. The Vaayu holds pure fragrance oil instead, adds no moisture to cushions and wardrobes, and leaves no residue on wood or upholstery.
From ₹11,999
Set it from wherever you are
SOSA Vaayu - app and timers
Bluetooth app and onboard buttons, 1h/4h/8h/24h schedules and adjustable intensity, auto-stop and a key-lock so nothing gets changed between visits. 5W, so a daily schedule costs very little to run.
From ₹11,999
The three things happening inside a house with the windows shut
Everything in a shut-house smell falls into one of three groups, and one of them has a fix that costs nothing and takes two minutes. Work through them in this order.
1
No air exchange, so nothing leaves
Off-gassing and textile residue accumulate in the same air
A lived-in house changes its air constantly through doors, windows, exhaust fans and simple movement. Shut it and that stops. Meanwhile the house keeps emitting: engineered board, adhesives, foam, paint, varnish, carpet and underlay off-gas continuously, and curtains, upholstery, rugs and mattresses keep re-releasing the cooking oil and body oils they have absorbed. Neither is dramatic on any given day. Over a week in the same sealed volume, it is very noticeable indeed. This is also why the newest room in the house, or the one with the most fitted furniture, usually smells strongest. The fix is genuine cross-ventilation: two openings on opposite sides of the house so air moves through rather than sitting, for at least an hour, with ceiling fans running to break up the still layers near the floor and ceiling.
Tip: open opposite sides, not one window. One opening is a pressure problem, two is a breeze.
After the air has been changed, the Vaayu holds one fragrance across up to 1000m³ at under 38dB, instead of five different sprays in five rooms.
See SOSA Vaayu →
2
The drain traps have dried out
The cause almost nobody checks, and it costs nothing
Every basin, floor trap and bathroom drain in your house holds a small pool of water in a U-bend or a trap. That water is the only thing standing between the room and the sewer line. It is not a filter and it is not a valve; it is simply a plug of water. In an occupied house it is topped up every time anyone uses the tap. In an empty house it evaporates, faster in warm weather, and once it is gone the drain becomes an open pipe and sewer air rises into the room. This is why a guest bathroom nobody uses is so often the source, and why a house that smelled fine after a weekend can smell awful after three weeks. The fix takes two minutes: pour a mug or two of water down every drain, floor trap, unused bathroom and utility gully. Do it when you arrive and again before you lock up. If the smell is specifically sewer-like rather than musty, deal with this before you consider anything else.
No machine addresses a dry trap. The Vaayu is for afterwards, once the house genuinely smells of nothing.
See SOSA Vaayu →
3
Moisture with nowhere to go
Mattresses, cushions, sofa foam and closed wardrobes
Soft materials hold water. A mattress, a sofa cushion, a stack of folded towels and a wardrobe full of cotton all carry moisture, and in a shut house with still air none of it can evaporate away. In a dry inland winter that just reads as flat and stale. In a humid coastal or monsoon region it goes further, because damp material supports microbial growth, and that is the mushroomy, cellar-like smell people describe in cushions and wardrobes. That is not a ventilation problem any more, it is a cleaning and drying problem. Strip the beds and stand the mattresses on their sides in moving air for a few hours, prop the cushions up on edge, open every wardrobe and cupboard, and if anything smells musty when you press your face into it, it needs washing or sunlight, not fragrance. Leave wardrobe doors ajar when you lock the house up.
Tip: leave wardrobes and cupboards open, and beds stripped, when you lock up. Air beats airtight.
The Vaayu is waterless, so unlike an ultrasonic mist diffuser it adds no moisture to cushions and wardrobes that are already struggling to dry.
See SOSA Vaayu →
The SOSA principle
A shut house is not making a new smell. It is holding a week of the ordinary ones, plus whatever came up the drain once the water in the trap evaporated.
Which is why the first thing to open is the windows, and the second thing to open is a tap.
What that particular smell is telling you
Different closed-house smells have genuinely different causes, and only one of the rows below ends with buying anything. Find the description that matches yours and start there.
The SOSA plan
What a closed house smells of, and what actually fixes it
| What you are actually smelling | What fixes it |
|---|---|
|
Flat, heavy, slightly sour, general across the whole house
|
Accumulated off-gassing and textile re-release with no air exchange. Cross-ventilate for an hour with fans running. It clears faster than it built up. |
|
Sewer-like or drain-like, worst near a bathroom nobody uses
|
A dried-out drain trap. Pour a mug or two of water down every drain, floor trap and unused bathroom, and repeat before you lock up. |
|
Musty, mushroomy, cellar-like, worst in cushions and wardrobes
|
Moisture and microbial growth in soft material. Dry it out, wash what smells, use sunlight. Never add an ultrasonic water mist to this room. |
|
Nothing wrong, just empty and unlived-in
|
This is the only row where a machine is the answer. One SOSA Vaayu (₹11,999) covers about 2,000-3,000 sq ft and holds a fragrance across a floor. View → |
Once you know which row you are in, the next question is what to actually do on the day. If you have just walked in and want a sequence to follow, how to freshen a house that has been closed for several days is the hour-by-hour version. If it is really one shut bedroom rather than the whole house, why closed rooms develop a stale smell handles that case at the right scale and the right price. And the underlying question that sits beneath this whole block is covered in why your house doesn't smell fresh even after cleaning. One technical point decides most of this block. The Vaayu is waterless: it nebulises pure fragrance oil from a 400ml tank and adds no moisture at all. Ultrasonic diffusers, which is what most home diffusers are, mist water plus a water-based fragrance, so they add humidity and they hold a tank of water. In a house that is shut for weeks you do not want standing water sitting in an empty room, and in a humid region you certainly do not want to add moisture to cushions and wardrobes that are already struggling. That is a technical reason, not a commercial one.
Air it properly first. Then hold it.
SOSA Vaayu ₹11,999 covers 1000m³ - about 2,000-3,000 sq ft - waterless, under 38dB, on a 400ml tank that lasts up to about 75 days.
A house that has been shut for a week is not dirty. It is simply full of its own week, with the windows closed and the drains empty.
— Sonal Sahani, SOSA
Built for a house nobody is standing in
Auto-stop, key-lock, 5W and an app you can reach from another city
The SOSA specification for a house that stays closed
What we would actually put in a house that stands empty, once the airing and the drains are handled. The Vaayu is the whole-floor machine and it is waterless, which is the entire argument in a home nobody is standing in: there is no tank of water sitting in an empty room for weeks. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA specification for a closed house
Air it first, then one machine sized to the air volume
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
Apartments, villa floors and second homes up to about 2,000-3,000 sq ft | 1000m³ coverage, waterless so there is no standing water in an empty house, 400ml tank up to about 75 days, Bluetooth app with 1h/4h/8h/24h timers, under 38dB, 5W, auto-stop and key-lock | ₹11,999 View → |
The order matters more than the machine. Fragrance does not remove odour molecules. It adds fragrance on top of them, so scent sprayed into a shut-up house gives you both smells at once. A diffuser is not an air purifier, it does not disinfect, dehumidify or remove off-gassing, and it makes no health claim. Open the house, move the air, wet the drains, dry the soft things, and only then scent the space. If the smell survives an hour of cross-ventilation, water in every trap and a day of drying the soft furnishings, stop shopping and look for a leak, seepage or a plumbing fault, because that is a building problem and no diffuser addresses it. SOSA's hotel-inspired fragrances are our own original interpretations of a style of scenting, composed in our own studio. SOSA is an independent Indian brand and is not affiliated with, or endorsed by, any hotel or hotel group. If you want a second opinion before spending anything, ask us what fits your home.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The message I get most from villa and second-home owners is almost word for word the same: the house is clean, we lock it properly, and it still smells like that the moment we open the door. It is not a housekeeping failure. It is arithmetic. A house emits a small amount of everything all the time, and ventilation is the only thing that removes it. Take the ventilation away for a week and you get a week's worth of everything at once.
The part I always ask about first is the drains, because it is free and it is the single most common thing people have never checked. Every trap in the house is a plug of water, and in an empty house that plug evaporates. After that I ask about mattresses and cushions, because soft materials hold moisture and a shut house gives it nowhere to go. Only when those two are handled would I put a Vaayu in the house, and the reason it is the Vaayu is that it is waterless. I am not going to sell someone a machine that sits in an empty room with a full tank of water for six weeks.
And the part I will not soften. Fragrance does not remove odour molecules. It adds fragrance on top of them, so scent sprayed into a shut-up house gives you both smells at once. A diffuser is not an air purifier, it does not disinfect, dehumidify or remove off-gassing, and it makes no health claim. Open the house, move the air, wet the drains, dry the soft things, and only then scent the space. A closed house that smells wonderful when you walk in has been opened, aired, drained and dried first, and scented second. SOSA's hotel-inspired fragrances are our own original interpretations of a style of scenting, composed in our own studio. SOSA is an independent Indian brand and is not affiliated with, or endorsed by, any hotel or hotel group. Everything is made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
Why does my house smell stale after being closed for a few days?
Because there is no air exchange, so everything the house emits accumulates instead of leaving. Furniture, engineered board, adhesives, paint, carpet and foam off-gas continuously. Cooking oil and body oils held in curtains, upholstery, rugs and mattresses keep re-releasing as rooms warm up. Moisture in soft materials has nowhere to evaporate to. Often there is a second cause on top: the water seal in floor traps and unused bathroom drains evaporates and lets sewer air back into the rooms.
Why does my closed house smell like drains or sewage?
Because the water seal in the drain traps evaporated while the house was shut. Every floor trap, basin and unused bathroom holds a small pool of water that blocks sewer air from coming back up the pipe. In an empty house that water evaporates in a week or two, and the drain becomes an open pipe into the room. Pour a mug or two of water down every drain, floor trap and unused bathroom, and repeat it on every visit.
Will a diffuser fix a house that smells stale after being shut?
No. Fragrance does not remove odour molecules, it adds fragrance on top of them, so scenting a shut-up house gives you both smells at once. A diffuser is not an air purifier and it does not disinfect, dehumidify or remove off-gassing. Open every window, cross-ventilate, pour water down the drains, air the mattresses and cushions, and scent the space once it is genuinely aired.
What is the fastest way to get rid of a closed-house smell?
Open windows on opposite sides of the house so air genuinely crosses, and run the ceiling fans and the bathroom and kitchen exhaust fans for at least an hour. While that runs, pour a mug or two of water down every drain, floor trap and unused bathroom. Strip the beds and stand the mattresses on their sides in moving air, prop up sofa cushions, and open every wardrobe and cupboard. Most of the smell goes in that first hour.
What should I buy once the house is aired out?
For a whole apartment or one villa floor, a SOSA Vaayu at Rs 11,999. It is waterless, rated to 1000 cubic metres or about 2,000 to 3,000 sq ft, runs a 400ml tank for up to about 75 days and takes 1, 4, 8 and 24 hour schedules with adjustable intensity. Waterless is the point in a house that stays shut, because there is no standing water sitting in a tank in an empty room.
Open it, air it, wet the drains, dry the beds. Then scent it.
SOSA — Closed Home Scenting for villas, second homes and rooms that stay shut
The SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, about 2,000-3,000 sq ft, with a 400ml tank lasting up to about 75 days, Bluetooth app and 1h/4h/8h/24h timers, under 38dB, 5W, auto-stop and key-lock. No water means nothing stands in a tank while the house is closed. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Ask us what fits your home → SOSA Vaayu · ₹11,999
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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 24 August 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 a 400ml refillable tank lasting up to about 75 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers with adjustable intensity, operation under 38dB, DC 12V/1A at 5W, dimensions 165 x 80.5 x 215mm at 0.9kg, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. It uses no water and no heat, so there is no dampness and no residue. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. 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.