★ SOSA for Rehabilitation and Recovery Centres
Pleasant is a property of the room; perfumed is an object in it - and there are four specific signs you have crossed from one to the other
★ ★ ★ ★ ★
★★★★★
"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
★★★★★
"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
★ Sized to the public zone, in the register the facility runs
Mountain BreezePine, sage and cedar - the rehabilitation defaultView ₹849
Morning FreshnessLemon, mint and eucalyptus for a white facilityView ₹749
SOSA VaayuThe same register across a connected public floorView ₹11,999
✓ One register in the public zone only - reception, family waiting and the corridor - set from the furthest chair at the end of the longest session and then key-locked ✓ Therapy and treatment areas are never scented, a named seating area is kept genuinely fragrance-free and offered rather than requested, and the treating clinician's judgement overrides any plan ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Rehabilitation Centres
What are the signs a facility has become obviously perfumed? Four. A noticeable burst as someone comes through the door. Patients or staff finding the scent on their clothes afterwards. A level that is faint in the morning and strong by late afternoon. And staff mentioning it at all - people stop noticing an appropriate level within days, so if they are still remarking on it, visitors are experiencing considerably more.
Is a dry register genuinely less noticeable than a warm one? At the same concentration, yes, in the sense that matters here. Warm, sweet registers announce themselves as an added product; dry ones read as the quality of the air. That is why every recommendation in this cluster is dry - it buys you a margin before a room tips from pleasant into perfumed.
See the SOSA Vaayu Book a scenting plan
Facts verified 9 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 a 400ml refillable tank lasting roughly 75-90 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, DC 12V/1A at 5W, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification - electrical and compliance marks, and not any kind of medical, clinical or health approval. Being waterless it adds no moisture and leaves no residue on surfaces or equipment; refill supply should be confirmed with SOSA. The SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB. The SOSA Sukoon (₹1,899) is a 500ml water-based ultrasonic diffuser for a single room of roughly 270-320 sq ft, and the SOSA Boond (₹899) is its compact equivalent; both use the water-based Hotel Collection fragrance (15ml from ₹299, 100ml ₹999, 300ml ₹1,799), which is made for ultrasonic diffusers and is not reed diffuser oil. SOSA reed diffusers - Morning Freshness (₹749 / ₹1,249) and Mountain Breeze (₹849 / ₹1,349), or the two together as the Fresh & Grounded duo (₹1,548 / ₹2,548) - are alcohol-free and phthalate-free, with a 50ml bottle lasting 6-8 weeks and a 130ml bottle 14-18 weeks; 300ml and 500ml refills are ₹2,399 and ₹3,499. No SOSA product is a medical device, a therapy or a treatment. Ambient fragrance in a rehabilitation or recovery setting is an interior and hospitality decision only: SOSA makes no claim that it reduces pain, anxiety or stress, alters mood, aids or accelerates recovery, healing or rehabilitation, improves mobility, motivation, adherence, attendance or any clinical outcome, shortens perceived waiting time, purifies air, or affects bookings, retention or spend. It does not remove, neutralise or reduce sweat, disinfectant, laundry or equipment odour, and it is never a substitute for ventilation, cleaning, laundry, humidity control or infection control - a facility with a persistent odour has a source to find and fix first. Therapy and treatment areas are left unscented, including gyms and exercise floors, physiotherapy and occupational therapy areas, neuro-rehabilitation and stroke-rehabilitation therapy rooms, hydrotherapy, treatment cubicles, post-operative and recovery areas and changing rooms. Because patients in rehabilitation attend repeatedly over weeks or months, a named seating area away from the source is kept genuinely fragrance-free and offered rather than waiting to be requested, and where a patient, visitor or member of staff is sensitive to fragrance the correct response is to reduce or switch off. The treating clinician's judgement overrides any plan on this page. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.
There is a real line here, and it is more diagnosable than it sounds. A room that smells pleasant is one where nobody can locate the source; a room that smells perfumed is one where everybody can. Four specific tells mark the crossing - a burst at the door, scent on people's clothes, a level that climbs through the day, and staff who mention it - and each has a different fix.
Quick answers — read this first
How do I make a rehab facility smell pleasant without making it obviously perfumed? Keep the source unlocatable and the level below naming. In practice: nothing at the entrance and nothing at nose height on the desk, a dry register rather than a warm one - Mountain Breeze at ₹849 or Morning Freshness at ₹749 - and a level set from the furthest chair at the end of the longest session, then locked so it cannot climb.What are the signs a facility has become obviously perfumed? Four. A noticeable burst as someone comes through the door. Patients or staff finding the scent on their clothes afterwards. A level that is faint in the morning and strong by late afternoon. And staff mentioning it at all - people stop noticing an appropriate level within days, so if they are still remarking on it, visitors are experiencing considerably more.
Is a dry register genuinely less noticeable than a warm one? At the same concentration, yes, in the sense that matters here. Warm, sweet registers announce themselves as an added product; dry ones read as the quality of the air. That is why every recommendation in this cluster is dry - it buys you a margin before a room tips from pleasant into perfumed.
The short answer
Short answer: by keeping the source unlocatable and the level below naming - nothing at the door or at desk height, a dry register rather than a warm one, and a setting judged from the furthest chair and then locked so it cannot climb.
The pick: Mountain Breeze (₹849) or Morning Freshness (₹749) with three reeds in at the staff end of the desk, or one SOSA Vaayu (₹11,999) high on the wall, key-locked.
Next step: ask three members of staff whether they can smell the fragrance today. If any of them can, reduce it a step. Or ask for a facility scenting plan.
In this guide
Every one of the four tells is observable this week without buying anything, and each points at a different fix.
Sized to the public zone - tap to see each
The rehabilitation register
Mountain Breeze · ₹849
For a white, daylit facility
Morning Freshness · ₹749
Send the floor plan
Free facility scenting plan
Straight answer
How do I make a rehabilitation facility smell pleasant without making it obviously perfumed?
By making the source impossible to locate and the level impossible to name - and the useful thing is that failure here is diagnosable rather than a matter of taste. Tell one: a burst at the door. If people notice a distinct wave of fragrance as they come in, the source is too close to the entrance or aimed at it. An entrance is a draught, and anything placed there is either swept out to the street or delivered at concentration to whoever is holding the door. The fix is placement rather than level: move the source inside, high on the wall the seating faces, and let the register meet people as a trace carried across the room. Nothing sits at the entrance and nothing sits at nose height on the desk, which is where patients stand longest - often supported or on a stick - while booking or paying. Tell two: it follows people out. If a patient or a member of staff notices the scent on their clothes after leaving, the concentration is well above where it should be for a building people spend hours in. That is purely a level problem, and the answer is to reduce a step and lock it, not to change register. Textiles pick up what the air holds, and a rehabilitation centre is full of soft furnishing that will do the same. Tell three: it climbs through the day. Faint at nine and strong at five means the machine is running continuously into a space whose air changes are not keeping pace, so the register accumulates. The fix is the timer rather than the dial - the 1h/4h/8h/24h scheduling on a SOSA Vaayu at ₹11,999 exists for this, and an intermittent pattern holds a much steadier perceived level than continuous running at a lower setting. It also stops an empty building saturating overnight and opening strong. Tell four: staff mention it. This is the most reliable signal of all, because olfactory adaptation is fast - people who work in a room stop registering an appropriate level within days. If your team still remarks on the fragrance weeks in, visitors arriving from outside are experiencing substantially more than your team is describing. Ask three of them directly whether they can smell it today; any yes means reduce a step. Register choice buys you margin on all four. Dry registers - Mountain Breeze at ₹849, Morning Freshness at ₹749 - read as the quality of the air, while warm and sweet ones read as an added product, so the dry ones can sit at a slightly higher concentration before a room tips from pleasant into perfumed. That is one more reason every recommendation in this cluster is dry. The rest of the plan is unchanged: one register across the public zone, therapy floors, gyms, cubicles, hydrotherapy and post-operative areas never scented, and a named seating area kept genuinely fragrance-free and offered at the first appointment, since patients here return over months. Fragrance is an ambience decision like lighting or seating: it is not a therapy and makes no contribution to recovery, healing, mobility, pain, mood, motivation or attendance, and SOSA makes no claim that it does. It works alongside ventilation, cleaning, laundry and infection control, never instead of them, and the treating clinician's judgement overrides any plan. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Keep the source unlocatable and the level unnameable. Four tells mark the line: a burst at the door (placement), scent following people out on their clothes (level), a level that climbs through the day (timer), and staff mentioning it (reduce a step). A dry register buys margin on all four.
Three reeds of Mountain Breeze at ₹849 at the staff end of the desk, or one SOSA Vaayu at ₹11,999 high on the wall with the key-lock on and the timer scheduled - which is the fix for a level that climbs through the afternoon.
See the SOSA Vaayu ₹11,999 Ask for a facility scenting plan
The honest ladder
One source for the public zone, sized to the floor
What to buy, and for which space
The honest options for the public zone, sized to the floor rather than to the ambition. The images link to the product pages so every figure here can be checked.
The register - or the whole answer where reception is one seating zone
SOSA Mountain Breeze Reed Diffuser
Himalayan pine, sage and Indian cedar - the driest register SOSA makes and the rehabilitation default, because it reads as clean air rather than as a spa. Where reception is a single seating group, this bottle at the staff end of the desk at ₹849 for 50ml carries the register on its own, three or four reeds in, flipped weekly; 130ml at ₹1,349 lasts 14-18 weeks. Alcohol-free, phthalate-free, six fibre reeds, and carried out of the room in seconds if a patient asks.
From ₹849
The cool register for a white, glazed, daylit facility
SOSA Morning Freshness Reed Diffuser
Malabar lemon, peppermint and eucalyptus - cool and bright with no warmth or sweetness in it, which suits a white, glazed rehabilitation interior where cedar can read as heavy. Three reeds in on the reception console, or two in a hard-surfaced room. ₹749 for 50ml (6-8 weeks), ₹1,249 for 130ml (14-18 weeks). Alcohol-free, phthalate-free, six fibre reeds.
From ₹749
The four tells, and the fix for each
Each of these is observable this week without buying anything, and each points at a different control.
1
A burst at the door
A placement problem, not a level problem
If arrivals notice a wave of fragrance at the threshold, the source is at or near the entrance, or a supply grille is pushing it that way. Turning the level down makes the whole building faint while leaving the doorway disproportionate, so the fix is to move rather than to reduce: inside the room, high on the wall the seating faces, away from the entrance and away from any grille aimed at it. The same rule catches the second common placement error, which is a bottle at the front edge of the reception desk - the point where a patient stands longest, at nose height, sometimes leaning on the counter because standing is difficult.
Rule: nothing at the entrance, nothing at the front edge of the desk. Both are placement, and both are free to fix.
2
It follows people out
A level problem, and a clear one
When a patient notices the scent on a coat that evening, or a physiotherapist finds it on a uniform, the concentration is well above what a building people occupy for hours should be running. Textiles take up what the air holds, and a rehabilitation centre is full of them. This is not a reason to change register or to move anything; it is a straightforward instruction to reduce a step and then lock the setting so it does not creep back. Ask two patients near the end of a course of treatment whether they have ever noticed it afterwards - they are the people with the longest cumulative exposure and the most reliable answer.
Test: if it leaves the building on somebody's clothes, reduce one step and lock it.
3
It climbs through the day
A scheduling problem - use the timer, not the dial
Faint at opening and strong by late afternoon means the register is accumulating faster than the air changes remove it, which is a function of run pattern rather than intensity. Continuous running at a low setting produces a rising curve; scheduled intermittent running at the same setting produces a much flatter one, which is why the 1h/4h/8h/24h timer on a SOSA Vaayu at ₹11,999 matters more than the intensity control in a busy facility. It also stops an empty building saturating overnight and opening strong, which is a surprisingly common complaint. If scheduling does not flatten it, the honest reading is that the air changes are too low, which is a ventilation conversation.
Rule: if it climbs through the day, change the schedule before you touch the intensity.
The Vaayu's 1h/4h/8h/24h timer is the control that flattens a level which climbs through the afternoon - and the key-lock stops it being undone.
See SOSA Vaayu →
4
Staff mention it
The most reliable signal you have, and the easiest to collect
Olfactory adaptation is quick: within a few days people who work in a room stop registering a level that is appropriate for it. So a team that still comments on the fragrance weeks after installation is telling you that the concentration is well above the adaptation threshold, and that someone arriving from outside is experiencing considerably more than the comment suggests. Ask three of them, directly and without preamble, whether they can smell it today. Any yes means reduce one step. The same logic applies in reverse and is why owners should never set the level themselves by standing in the room - staff going nose-blind is its own page.
Test: ask three staff if they can smell it today. Any yes is an instruction to reduce.
The SOSA principle
Pleasant is a property of a room. Perfumed is an object inside it. The whole craft is keeping the source unlocatable and the level unnameable.
A burst at the door is placement. Scent on clothes is level. A level that climbs is scheduling. Staff mentioning it is the signal to reduce. A dry register buys margin on all four.
Pleasant or perfumed, tell by tell
Four diagnoses and four different controls - which is why turning the dial down is rarely the whole answer.
The SOSA rehabilitation table
The four tells, and what each one means
| The question | The answer |
|---|---|
|
A noticeable burst as people come through the door
|
Placement. The source is at or near the entrance, or a grille is aimed that way. Move it inside, high on the wall the seating faces - reducing the level would make the rest of the building faint and leave the doorway wrong. |
|
Patients or staff find it on their clothes
|
Level, plainly. Textiles take up what the air holds. Reduce one step and lock the setting; do not change register or move anything. |
|
Faint in the morning, strong by five
|
Scheduling. The register accumulates faster than air changes clear it. Use the 1h/4h/8h/24h timer on a Vaayu at ₹11,999 rather than the intensity control, and stop the building saturating overnight. |
|
Staff still mention it weeks later
|
The most reliable signal there is. People adapt within days, so a team that still notices means visitors are experiencing considerably more. Ask three of them directly; any yes means reduce a step. |
|
Nobody can say where it comes from
|
That is the target. A dry register at a low level, source unlocatable - Mountain Breeze at ₹849 or Morning Freshness at ₹749, three reeds in at the staff end of the desk, or a machine high on the wall. |
The related question of a level that drifts upward because staff stop noticing it is in stopping staff from creeping the intensity up, and the case for running low in a long-dwell building is in subtle or strong in a long-dwell environment. If the underlying worry is that the facility reads as a wellness business, premium without feeling like a spa is the page. SOSA makes no claim that fragrance affects recovery, healing, mobility, pain, mood, motivation or attendance.
One register, the public zone only, set from the furthest chair
SOSA Vaayu ₹11,999 waterless, key-locked and timed to facility hours; Mountain Breeze ₹849 or Morning Freshness ₹749 as the register. Send the floor plan with the therapy areas marked and we will return it with the placement and the fragrance-free seating.
If anyone in the building can tell you where the smell is coming from, you have not made a room pleasant. You have put an object in it.
— Sonal Sahani, SOSA
Sized to the floor
The public zone gets one source; therapy areas get none
The SOSA rehabilitation facility specification
One register, delivered at whatever size the public zone is, with the rule that travels alongside each product. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA rehabilitation facility specification
What goes where in a rehabilitation, recovery or multidisciplinary facility
| Product | The space it fits | The rule that travels with it | Price |
|---|---|---|---|
|
SOSA Mountain Breeze Reed Diffuser
|
Reception as a single seating group, and the register for the whole facility | Three or four reeds in at the staff end of the desk, flipped weekly; lifted out of the room in seconds if a patient asks | ₹849 / ₹1,349 View → |
|
SOSA Morning Freshness Reed Diffuser
|
The same, in a white, glazed or hard-surfaced room | Two or three reeds in - a hard room needs fewer, not more; cool, with no warmth or sweetness | ₹749 / ₹1,249 View → |
 SOSA Fresh & Grounded Reed Diffuser Duo
|
Two genuinely separate seating groups in one public area | Two bottles in two places carrying one register - reach comes from placement, never from adding reeds | ₹1,548 / ₹2,548 View → |
|
SOSA Vaayu
|
When the public zone is a connected floor rather than one seating group | The same register carried by a machine, placed from the plan and key-locked at the level the furthest chair allowed | ₹11,999 View → |
 SOSA Sukoon
|
A closed reception or family waiting room of 270-320 sq ft | High shelf, on low, facility hours only, rinsed between refills | ₹1,899 View → |
A SOSA Sukoon (₹1,899) is the water-based rung for a single enclosed reception or family waiting room of roughly 270-320 sq ft in a dry room, and a Boond (₹899) for an admin cabin or a single desk; both run on the water-based Hotel Collection fragrance (from ₹299), which is not reed diffuser oil and is not interchangeable with it. Above about 3,000 sq ft of one connected volume the step is one SOSA Angaan (₹25,999) on the duct, not a second Vaayu. Therapy and treatment areas are never scented - gyms and exercise floors, physiotherapy and occupational therapy areas, neuro-rehabilitation therapy rooms, hydrotherapy, treatment cubicles, post-operative and recovery areas and changing rooms - and that is achieved by placement and doors rather than by a lower setting. A named seating area away from the source is kept genuinely fragrance-free and offered by the desk rather than waiting to be asked, because patients here attend repeatedly over months. Fragrance is an ambience decision like lighting or seating: it does not remove or reduce anything in the air, it is not a therapy and makes no contribution to recovery, healing, mobility, pain, mood, motivation or adherence, and it works alongside ventilation, cleaning, laundry and infection control, never instead of them. The treating clinician's judgement overrides any plan. Ask for a facility scenting plan and send the floor plan with the therapy areas marked.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
I like this question because it has objective answers. People assume pleasant and perfumed is a matter of taste, and it mostly is not - there are four things you can observe this week that tell you which side of the line you are on, and none of them requires an opinion about the fragrance itself.
The staff test is the one I would run first, because it is free and it is the most reliable. Everyone who works in a room stops smelling it within a few days. So if your team is still mentioning the scent a month in, the level is far above where it should be, and the person walking in from the car park is getting something much stronger than anybody inside realises.
And a note on why all my recommendations here are dry: Mountain Breeze at ₹849 and Morning Freshness at ₹749 read as the quality of the air, while warm sweet registers read as a product that was added, so they give you more room before a building tips over. One Vaayu at ₹11,999 with the timer scheduled and the key-lock on holds it there. Fragrance is an ambience decision like lighting or seating. It is not a therapy and makes no contribution to recovery, healing, mobility, pain, mood or motivation, and I make no claim that it does. Therapy areas are never scented, a named seating area stays fragrance-free, it works alongside ventilation, cleaning and laundry, never instead of them, and the treating clinician's judgement overrides any plan. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
How do I make a rehab facility smell pleasant without making it obviously perfumed?
Keep the source unlocatable and the level below naming. Nothing at the entrance and nothing at nose height on the reception desk; a dry register rather than a warm one - Mountain Breeze at Rs 849 or Morning Freshness at Rs 749; and a level set from the furthest chair at the end of the longest session, then locked so it cannot climb.
What are the signs a facility has crossed into being obviously perfumed?
Four. A noticeable burst of fragrance as people come through the door. Patients or staff finding the scent on their clothes afterwards. A level that is faint in the morning and strong by late afternoon. And staff still mentioning it weeks after installation, which means the concentration is well above the level at which people normally adapt.
Why does the fragrance get stronger through the day?
Because it is accumulating faster than the air changes remove it, which is a run-pattern problem rather than an intensity one. Scheduled intermittent running holds a much flatter perceived level than continuous running at a lower setting - the 1h/4h/8h/24h timer on a SOSA Vaayu is the control to use, and it also stops an empty building saturating overnight.
Why is asking staff a good test of the fragrance level?
Because olfactory adaptation is fast - people working in a room stop registering an appropriate level within a few days. So if your team still remarks on it weeks in, someone arriving from outside is experiencing considerably more than the comment suggests. Ask three staff directly whether they can smell it today; any yes means reduce one step.
Does the choice of register affect how perfumed a room feels?
Yes. Warm, sweet registers announce themselves as an added product, while dry ones read as the quality of the air, so a dry register can sit at a slightly higher concentration before a room tips from pleasant into perfumed. That is one of the reasons every recommendation for rehabilitation settings in this range is dry rather than warm.
Unlocatable source, unnameable level
SOSA — Studio Scenting pleasant without being obviously perfumed
Four tells mark the line, and each has its own fix: a burst at the door is placement, scent on clothes is level, a level that climbs through the afternoon is scheduling, and staff still mentioning it is the signal to reduce. A dry register - Mountain Breeze (₹849) or Morning Freshness (₹749) - buys margin on all four, and one SOSA Vaayu (₹11,999) holds the setting with a key-lock and a facility-hours timer. Therapy areas are never scented, a named seating area stays genuinely fragrance-free, and the treating clinician's judgement overrides any plan. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Ask for a facility scenting plan → SOSA Vaayu · ₹11,999
One more look at the range
Continue the read
More from SOSA
- SOSA Vaayu (₹11,999)
- SOSA Mountain Breeze Reed Diffuser (₹849)
- Premium without feeling like a spa
- Can staff become nose-blind to the fragrance?
- Stopping staff from creeping the intensity up
- Subtle or strong in a long-dwell environment?
- Pleasant without overwhelming patients
- Best fragrance for a rehabilitation clinic reception
- Why more room freshener can make it smell worse
- Ask us: Ask for a facility 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 9 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 a 400ml refillable tank lasting roughly 75-90 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, DC 12V/1A at 5W, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification - electrical and compliance marks, and not any kind of medical, clinical or health approval. Being waterless it adds no moisture and leaves no residue on surfaces or equipment; refill supply should be confirmed with SOSA. The SOSA Angaan (₹25,999) is an HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and operation under 42dB. The SOSA Sukoon (₹1,899) is a 500ml water-based ultrasonic diffuser for a single room of roughly 270-320 sq ft, and the SOSA Boond (₹899) is its compact equivalent; both use the water-based Hotel Collection fragrance (15ml from ₹299, 100ml ₹999, 300ml ₹1,799), which is made for ultrasonic diffusers and is not reed diffuser oil. SOSA reed diffusers - Morning Freshness (₹749 / ₹1,249) and Mountain Breeze (₹849 / ₹1,349), or the two together as the Fresh & Grounded duo (₹1,548 / ₹2,548) - are alcohol-free and phthalate-free, with a 50ml bottle lasting 6-8 weeks and a 130ml bottle 14-18 weeks; 300ml and 500ml refills are ₹2,399 and ₹3,499. No SOSA product is a medical device, a therapy or a treatment. Ambient fragrance in a rehabilitation or recovery setting is an interior and hospitality decision only: SOSA makes no claim that it reduces pain, anxiety or stress, alters mood, aids or accelerates recovery, healing or rehabilitation, improves mobility, motivation, adherence, attendance or any clinical outcome, shortens perceived waiting time, purifies air, or affects bookings, retention or spend. It does not remove, neutralise or reduce sweat, disinfectant, laundry or equipment odour, and it is never a substitute for ventilation, cleaning, laundry, humidity control or infection control - a facility with a persistent odour has a source to find and fix first. Therapy and treatment areas are left unscented, including gyms and exercise floors, physiotherapy and occupational therapy areas, neuro-rehabilitation and stroke-rehabilitation therapy rooms, hydrotherapy, treatment cubicles, post-operative and recovery areas and changing rooms. Because patients in rehabilitation attend repeatedly over weeks or months, a named seating area away from the source is kept genuinely fragrance-free and offered rather than waiting to be requested, and where a patient, visitor or member of staff is sensitive to fragrance the correct response is to reduce or switch off. The treating clinician's judgement overrides any plan on this page. 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.