★ SOSA Vaayu · what to brief the architect
Brief your architect on four lines — a socket, a surface, a sightline and a return grille — and one prohibition, and the scenting decision in your new clinic is finished before the building starts
★ ★ ★ ★ ★
★★★★★
"Our architect had drawn a ducted scent take-off into the AHU. One paragraph from the supplier saying never do that in a clinic settled the argument in five minutes."
practice owner · duct removed from the drawing
★★★★★
"Four lines on a drawing. That is genuinely the whole brief, and it saved us a services coordination meeting."
project architect · four-line brief
★★★★★
"The sightline point was new to me — that the machine should not be the first object a patient sees. It changed where we put the socket."
consultant · sightlines
★★★★★
"Being told the power draw is about five watts stopped our consultant specifying a dedicated circuit for it."
services coordinator · five watts, not a circuit
★★★★★
"The return grille rule is the one our contractor had never heard. It is now marked on the reception reflected ceiling plan."
practice owner · grilles marked
★★★★★
"We asked about installation and were told plainly that none is published. The architect took it out of the services scope and nobody minded."
interior designer · no installation scope
★★★★★
"Our architect had drawn a ducted scent take-off into the AHU. One paragraph from the supplier saying never do that in a clinic settled the argument in five minutes."
practice owner · duct removed from the drawing
★★★★★
"Four lines on a drawing. That is genuinely the whole brief, and it saved us a services coordination meeting."
project architect · four-line brief
★★★★★
"The sightline point was new to me — that the machine should not be the first object a patient sees. It changed where we put the socket."
consultant · sightlines
★★★★★
"Being told the power draw is about five watts stopped our consultant specifying a dedicated circuit for it."
services coordinator · five watts, not a circuit
★★★★★
"The return grille rule is the one our contractor had never heard. It is now marked on the reception reflected ceiling plan."
practice owner · grilles marked
★★★★★
"We asked about installation and were told plainly that none is published. The architect took it out of the services scope and nobody minded."
interior designer · no installation scope
✓ Never HVAC-mount a diffuser in a clinic — ducting is precisely how fragrance reaches the clinical pathway ✓ The entire built requirement is one twin socket and a stable surface; no installation service is published ✓ Free shipping above ₹499 · a portion of every order funds girl-child education
Founder Diaries · Eye Clinic Scenting · The Architect Brief
The built requirement is trivial. One twin socket at the far end of the waiting area and a stable surface at waist to chest height. Power draw is around 5W for a Vaayu, so no dedicated circuit and no services coordination is needed.
The return grille is the line most often missed. A return is a route into the rest of the system, so a source placed near one delivers scent where the system goes — which in a clinic includes the rooms that must stay clear.
Do not put scenting in the services scope or the tender. No installation service, lead time or delivery window is published, and the product is a ₹849 to ₹11,999 purchase made months after opening, not a construction item.
Sukoon 500ml₹1,899 · low surface, far endArchitects think in sightlines already, so this is an easy line to add to a brief and it is worth adding. A patient walking in should see, in order: the desk, the person at it, and where to sit. A fragrance machine should be in none of those three frames. The reasoning is the same doctrine that runs through this entire cluster — a clinic is judged on competence, and ambience must never compete with that signal. A visible diffuser positioned as an object announces that the practice has made a decision about how it should smell, which invites the patient to evaluate that decision rather than to ignore it. The target is considered, never scented. Practically this means a low surface at the far end of the waiting area rather than a plinth in the entrance, no lit niche, no shelf built specifically to display it, and no proximity to signage. It also means the reed diffuser, if that is what you use, belongs on a side table at the end of the bench rather than on the counter — and on a tray, because the oil marks wood and stone. One more small thing worth putting in the brief: the source should be reachable by staff without crossing the waiting area, because a control that requires a walk through the room in front of people is one nobody will use.
Mountain Breeze · nothing on any drawing₹849Shop → 
Sukoon · one socket, one surface₹1,899Shop → Vaayu · freestanding, never ducted₹11,999Shop →
SOSA range, specifications and prices used in this guide (verified August 2026): Vaayu ₹11,999 — waterless cold-air nebulisation of undiluted fragrance oil; no water, no heat, no added humidity, no white mineral dust. Coverage up to 1000 m³, about 2,000–3,000 sq ft. 400ml refillable tank lasting roughly 90+ days at a mid setting. Bluetooth app plus onboard controls, 1h / 4h / 8h / 24h run windows, day selection, adjustable intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. SOSA does not currently sell a separate Vaayu cold-air refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, so a practice planning continuous or multi-site use should confirm current refill availability with SOSA before committing. The water-based Hotel Collection is made for ultrasonic machines and must not be used in a Vaayu. Other machines: Boond 300ml ₹899 (~150 sq ft, ultrasonic) · Sukoon 500ml ₹1,899 (270–320 sq ft, 16–18 hours on low, remote and steady/2H/4H timers, three 15ml fragrances included, ultrasonic) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine that covers less than a Sukoon, never a coverage upgrade) · Safar ₹3,999 (waterless cold diffusion, cordless, 20ml, about 6.9cm, three speeds, 1/2/3-hour auto-off — sold as a car and travel diffuser, personal-scale only; SOSA publishes no coverage figure for it) · Aangan ₹25,999 (HVAC nebulising, ~8,000–10,000 sq ft) · Meenar ₹38,500 (commercial HVAC, 12,000–18,000 sq ft). Water-based Hotel Collection for ultrasonic machines: 15ml ₹299 · 100ml ₹999 · 300ml ₹1,799 · pack of seven ₹1,799; scents are inspired by the atmosphere of well-known hotels — SOSA is an independent Indian brand and is not affiliated with, endorsed by or supplying any hotel group. Reed diffusers ₹749–₹1,349 (50ml 6–8 weeks, 130ml 14–18 weeks, six fibre reeds, no 100ml size; replacement reeds are not sold separately). Reed oil cannot be used in an ultrasonic machine and Hotel Collection oil cannot be used in reeds. SOSA sells no room spray or home spray — every SOSA spray is a car perfume. Nothing in this guide is medical, clinical or safety advice. A fragrance diffuser adds a scent to the air. It does not clean, purify, filter, sanitise or disinfect air, does not remove or neutralise disinfectant, damp or occupancy smells, and has no effect on comfort, anxiety, waiting time, recovery or any clinical outcome. Some people are sensitive to airborne fragrance, which is why this guide recommends that examination rooms, diagnostic areas, consultation cabins, procedure suites and post-operative areas remain fragrance-free, that a fragrance-free seating option always exist, and that a diffuser is never mounted into shared HVAC in a clinical building. Decisions about clinical policy, ventilation standards, infection control and patient suitability rest entirely with the practice and its clinicians. A persistent stale, damp or disinfectant smell is a ventilation, moisture or cleaning problem — SOSA sells no dehumidifier and no air purifier, and fragrance should never be used to cover one. Coverage, runtime and longevity figures are manufacturer specifications and typical ranges, not guarantees, and vary with room volume, ceiling height, air exchange, occupancy and season. SOSA publishes no commercial or bulk pricing, no corporate account, no annual maintenance contract, no installation service, no stated warranty term and no multi-location programme; warranty length, spare parts, servicing and app platform availability are unconfirmed, and larger or multi-site enquiries should go through the contact page before any commitment. Composed and made in small batches in Pune, India. 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.
Yes — and the most valuable thing your architect can do about scenting is not to design something in, but to design one thing out. Brief them on four lines and one prohibition. The four lines are a socket, a surface, a sightline and a return grille. The prohibition is that fragrance must never be integrated into the clinic's air handling, whatever anybody proposes. That last one matters because an architect or a services consultant who has worked on hotels, showrooms or offices will reasonably reach for duct integration: it is neat, it hides the hardware, it produces an even result, and in every one of those buildings it is the right answer. In a clinic it is the wrong one, and not marginally. A central system serves your consultation cabins, workup room and imaging room in exactly the same breath as it serves your reception, so ducting fragrance into it is an engineered method of putting fragrance into the clinical pathway — the single outcome this entire cluster exists to prevent. There is no intensity low enough to make it acceptable, because the objection is about where material goes rather than about dose. Everything else in the brief is small and cheap. The built requirement for any SOSA product a clinic would use is one twin socket and a stable surface, or in the case of a reed diffuser, nothing at all. And two planning notes worth having early: no installation service and no lead time are published, so scenting should not appear in the services scope or the project programme.
Quick answers — read this first
Yes, brief the architect — with four lines and one prohibition. Socket, surface, sightline, return grille; and never duct fragrance into a clinic's shared air handling.The built requirement is trivial. One twin socket at the far end of the waiting area and a stable surface at waist to chest height. Power draw is around 5W for a Vaayu, so no dedicated circuit and no services coordination is needed.
The return grille is the line most often missed. A return is a route into the rest of the system, so a source placed near one delivers scent where the system goes — which in a clinic includes the rooms that must stay clear.
Do not put scenting in the services scope or the tender. No installation service, lead time or delivery window is published, and the product is a ₹849 to ₹11,999 purchase made months after opening, not a construction item.
The short answer
Short answer: yes, but the brief is four lines long. A twin socket at the far end of the waiting area, clear of return grilles. A stable surface at waist to chest height that is not the reception counter. A sightline in which the machine is not the first object a patient sees. And return grilles marked on the reception plan. Plus one written prohibition: no HVAC integration of fragrance anywhere in a clinical building.
Why the prohibition needs to be explicit: duct integration is the professionally natural answer for anyone who has scented a hotel or a showroom, and the Vaayu is physically capable of it. If it is not ruled out on the drawing, it will be proposed — and it is the one specification that puts fragrance into your consultation cabins by design.
Where to shop, later: Mountain Breeze ₹849 needs no power at all · Sukoon ₹1,899 for 150–320 sq ft · Vaayu ₹11,999 above ~320 sq ft, freestanding. Free shipping above ₹499.
In this guide
A socket and a stable surface at the far end of the waiting area — the entire built requirement
Sukoon 500ml · ₹1,899
5W, freestanding, and never connected to the air handling in a clinical building
Vaayu waterless · ₹11,999
No power, no socket, no services coordination and nothing on any drawing
Mountain Breeze · ₹849 / 50ml
What should an architect actually be told about scent-machine placement?
Straight answer
1. A twin socket at the far end of the waiting area. Not at the reception counter, which is where a machine ends up if no socket is provided, and which is the worst position available on every count — clutter, sightline and proximity to the corridor. Far end, at low level, clear of the seating gangway.
2. A stable surface at waist to chest height in that position. A shelf, a console, a low cabinet return, or a plinth. It belongs in the furniture schedule rather than the joinery package, and it costs nothing extra if it is drawn from the start.
3. A sightline in which the machine is not a feature. A patient entering should see the desk, the seating and whoever is going to speak to them. A diffuser that is the first object in the frame reads as a statement, which in a medical building is precisely the wrong register — a clinic is judged on competence, and ambience must never compete with that signal.
4. Return grilles marked on the reception plan. This is the line most often missing. An air-conditioning return is a route into the rest of the system, so a source placed near one delivers fragrance wherever that system goes — which in a clinic includes rooms that take nothing. Mark the grilles, and place the source away from them.
5. And the prohibition, in writing on the services drawing: no HVAC integration of fragrance. The Vaayu can be wall or duct mounted, and in a hotel that would be the elegant answer. In a clinic you must not. If a proposal only works with a duct, the proposal changes — not the building, not the budget, and not the boundary.
6. Size to the arrival zone on the plan, not to the building. Delete every clinical room from the calculation — workup, refraction, imaging, the visual field room, consultation cabins, the laser or procedure suite, any post-operative area, sterilisation and stores. Reception plus waiting in most Indian eye clinics is 150–400 sq ft. Under ~150: a reed diffuser, which needs no socket at all. 150–320: Sukoon ₹1,899. Above ~320 on one connected public path: Vaayu ₹11,999, freestanding.
7. Keep it out of the services scope and the project programme. The power draw is around 5W and no dedicated circuit is needed. SOSA publishes no installation service, no stated lead time and no delivery window, along with no bulk or commercial pricing, no B2B or corporate page, no maintenance contract, no stated warranty term and no multi-location programme; warranty length, spare parts, servicing and whether the Bluetooth app is iOS or Android are unverified. Do not let a commissioning date or a service scope appear against scenting. Ask through the contact page before assuming any of it exists.
8. And the conditions no drawing changes. The clinical pathway stays fragrance-free. The correct intensity in a clinic is lower than in any retail or hospitality space; if a patient can name the fragrance, it is too strong. A fragrance-free seat must genuinely exist somewhere a person would ordinarily sit, which is itself a plan decision. Reception staff are in that air all day and may switch it off without asking anybody. Nothing here is medical, clinical, ventilation, air-handling, infection-control, accreditation or regulatory advice — air handling in a healthcare building belongs entirely to your own clinicians and licensed contractors. Composed and made in small batches in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
2. A stable surface at waist to chest height in that position. A shelf, a console, a low cabinet return, or a plinth. It belongs in the furniture schedule rather than the joinery package, and it costs nothing extra if it is drawn from the start.
3. A sightline in which the machine is not a feature. A patient entering should see the desk, the seating and whoever is going to speak to them. A diffuser that is the first object in the frame reads as a statement, which in a medical building is precisely the wrong register — a clinic is judged on competence, and ambience must never compete with that signal.
4. Return grilles marked on the reception plan. This is the line most often missing. An air-conditioning return is a route into the rest of the system, so a source placed near one delivers fragrance wherever that system goes — which in a clinic includes rooms that take nothing. Mark the grilles, and place the source away from them.
5. And the prohibition, in writing on the services drawing: no HVAC integration of fragrance. The Vaayu can be wall or duct mounted, and in a hotel that would be the elegant answer. In a clinic you must not. If a proposal only works with a duct, the proposal changes — not the building, not the budget, and not the boundary.
6. Size to the arrival zone on the plan, not to the building. Delete every clinical room from the calculation — workup, refraction, imaging, the visual field room, consultation cabins, the laser or procedure suite, any post-operative area, sterilisation and stores. Reception plus waiting in most Indian eye clinics is 150–400 sq ft. Under ~150: a reed diffuser, which needs no socket at all. 150–320: Sukoon ₹1,899. Above ~320 on one connected public path: Vaayu ₹11,999, freestanding.
7. Keep it out of the services scope and the project programme. The power draw is around 5W and no dedicated circuit is needed. SOSA publishes no installation service, no stated lead time and no delivery window, along with no bulk or commercial pricing, no B2B or corporate page, no maintenance contract, no stated warranty term and no multi-location programme; warranty length, spare parts, servicing and whether the Bluetooth app is iOS or Android are unverified. Do not let a commissioning date or a service scope appear against scenting. Ask through the contact page before assuming any of it exists.
8. And the conditions no drawing changes. The clinical pathway stays fragrance-free. The correct intensity in a clinic is lower than in any retail or hospitality space; if a patient can name the fragrance, it is too strong. A fragrance-free seat must genuinely exist somewhere a person would ordinarily sit, which is itself a plan decision. Reception staff are in that air all day and may switch it off without asking anybody. Nothing here is medical, clinical, ventilation, air-handling, infection-control, accreditation or regulatory advice — air handling in a healthcare building belongs entirely to your own clinicians and licensed contractors. Composed and made in small batches in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: yes, brief the architect, but the brief is four lines — a socket at the far end of the waiting area, a stable surface, a sightline where the machine is not a feature, and return grilles marked — plus one written prohibition: never integrate fragrance into a clinic's air handling. Power draw is about 5W, so no services coordination is needed. Keep scenting out of the tender, the services scope and the programme, because no installation service, lead time or warranty term is published.
The machine an architect will want to duct, and why they must not
SOSA Vaayu · waterless cold-air nebulisation, key-lock, scheduled run windows ₹11,999
Pressurised air atomises undiluted oil into a dry nano-mist — no water, no heat, no residue, no humidity added. Physically it is small and undemanding: 165 × 80.5 × 215 mm, 0.9 kg, a 400ml refillable tank, DC 12V/1A at about 5W, black or white, CE, RoHS and SGS certified, and rated up to 1000 m³ ≈ 2,000–3,000 sq ft. It can be freestanding, wall mounted or HVAC mounted, and in a clinic only the first of those three is acceptable — a fact your architect needs in writing, because the duct option is the professionally natural choice for anyone who has scented a hotel. The clinic reasons to choose it are three specifications rather than reach: under 38 dB, which is what allows a machine to sit in a room where people wait an hour without becoming the thing they notice; a key-lock, so the level set does not drift upward across a season with three people on a desk; and 1h/4h/8h/24h run windows with day selection, so it runs clinic hours and is genuinely absent overnight and during cleaning. Placement in the specification note: freestanding, waist to chest height, at the end of the waiting area furthest from the corridor to consultation, away from every return grille. It ships with four cold-air fragrances at 100ml each — 4 × 100ml = 400ml, lasting roughly 90+ days, or 400 ÷ 90 = 4.4ml a day at a mid setting. There is no separate Vaayu cold-air refill oil on sale at the time of writing, so confirm current availability with SOSA before specifying one, and never substitute the water-based Hotel Collection.
Part one — the three things the architect genuinely decides
Most of what a scenting supplier would put in an architect's brief is noise. Three things are genuinely architectural, and each of them is decided on a drawing rather than in a showroom.
1
POWER, AND HOW LITTLE OF IT IS NEEDED
One twin socket in the right position, and the right position is nowhere near the reception counter
The electrical requirement here is so small that the risk is over-specification rather than under. A Vaayu runs at DC 12V/1A, around 5W, and an ultrasonic machine is in the same order of magnitude; there is no dedicated circuit, no isolator, no data connection and no BMS integration. One twin socket is the whole thing. What matters is where it goes, because a machine ends up wherever the nearest socket is, and in a reception that is almost always the desk. The desk is the worst position available: it puts the source next to the busiest surface in the room, adds it to the clutter that accumulates there through the day, and sits it close to the corridor down which patients are called — which is the direction you least want the air to travel. So the socket goes at the far end of the waiting area, at low level, clear of the seating gangway and away from the return grilles. Two hundred rupees at first fix, against a surface conduit or a floor cable in a finished reception. If your practice will use reed diffusers rather than machines, the requirement drops to zero — no power, no socket, nothing on any drawing — which is worth telling your architect early so that they do not reserve services capacity for something that does not need it.
The instruction: one twin socket, far end of the waiting area, clear of grilles. No dedicated circuit; the draw is about 5W.
2
SIGHTLINES · WHAT A PATIENT SEES FIRST
A visible fragrance machine reads as a statement, and a clinic should not be making that particular statement
Sukoon 500ml₹1,899 · low surface, far endArchitects think in sightlines already, so this is an easy line to add to a brief and it is worth adding. A patient walking in should see, in order: the desk, the person at it, and where to sit. A fragrance machine should be in none of those three frames. The reasoning is the same doctrine that runs through this entire cluster — a clinic is judged on competence, and ambience must never compete with that signal. A visible diffuser positioned as an object announces that the practice has made a decision about how it should smell, which invites the patient to evaluate that decision rather than to ignore it. The target is considered, never scented. Practically this means a low surface at the far end of the waiting area rather than a plinth in the entrance, no lit niche, no shelf built specifically to display it, and no proximity to signage. It also means the reed diffuser, if that is what you use, belongs on a side table at the end of the bench rather than on the counter — and on a tray, because the oil marks wood and stone. One more small thing worth putting in the brief: the source should be reachable by staff without crossing the waiting area, because a control that requires a walk through the room in front of people is one nobody will use.
The rule: not in the entrance frame, not on a plinth, not lit. Present in the room, absent from the photograph.
3
AIRFLOW · THE RETURN GRILLE IS THE LINE NOBODY DRAWS
A return is a route into the rest of the system, and in a clinic the rest of the system includes the rooms that must stay clear
This is the genuinely technical part of the brief and it is short. Mark the supply diffusers and, more importantly, the return grilles on the reception reflected ceiling plan, and place the scent source away from the returns. A supply diffuser blows into the room; a return draws from it and takes what it draws into the plant and back out wherever else that system serves. In a clinic, that "wherever else" frequently includes the consultation corridor and the workup rooms — which is why a source sitting under a return is a slower, accidental version of the ducted installation this page refuses. The correction is free at drawing stage and awkward afterwards. While the plan is open, three other airflow facts are worth capturing for later use: which doors are actually closed during a clinic session as opposed to on the drawing; whether the front door opens directly into the waiting bank or through a lobby; and whether the corridor to consultation has a door at all. Those three determine how far a fragrant zone extends in practice, and they are far easier to read on a plan than to reconstruct in a finished building. I would stress, because it is not my field: what your air handling ought to be doing, how much fresh air it should introduce and how the clinical rooms should be served are entirely questions for your clinicians and your services engineer. My interest stops at where I would put a bottle.
Part two — the drawing-by-drawing brief
What to ask for on each drawing, in the words an architect will recognise, and why a clinic differs from the hotel or showroom precedent. The fourth column is what to put in writing.
The architect brief, drawing by drawing
What to ask for, why a clinic differs, and the exact instruction to record
| Drawing | What to ask the architect for | Why a clinic differs from a hotel or showroom | The instruction to put in writing |
|---|---|---|---|
| Mechanical services ★ | No scent take-off, no in-duct atomiser, no AHU connection anywhere | The same system serves consultation, workup and imaging as serves reception | "Fragrance is not to be integrated into any air-handling system in this building" |
| Reflected ceiling plan | Return grilles and supply diffusers marked in the reception area | A return near the source is a slow, accidental version of ducting | "Scent source to be positioned clear of all return grilles" |
| Small power layout | One twin socket, low level, far end of the waiting area | In a hotel lobby the machine is concealed; here it must be reachable and low-key | "One twin socket for ambient scenting; approx. 5W load, no dedicated circuit" |
| Furniture layout | A stable surface at waist to chest height at that end, not the counter | A clinic counter accumulates through the day; anything on it becomes clutter | "Low surface for scent source; not to be located on the reception counter" |
| General arrangement | A closable boundary between the waiting bank and the clinical corridor | Hospitality wants openness; a clinic needs the air to stop somewhere | "Door or lobby between waiting and consultation corridor where practicable" |
| Seating layout | A second bay, so a fragrance-free seat genuinely exists | No hospitality brief has this requirement; every clinic brief should | "Secondary seating provided away from the ambient scent source" |
| Entrance sightline study | The scent source out of the first three frames on entry | A showroom displays the machine; a clinic must not make that statement | "Scent source not to be a visual feature from the entrance" |
| The honest caveat: this is a brief about where a small appliance stands in a waiting room. It is not ventilation, air-handling, mechanical, building, fire, infection-control, accreditation or regulatory advice, and nothing in it should be read as a view on how a healthcare building ought to be ventilated, cooled or commissioned — those belong entirely to the practice's own clinicians, architect and licensed services engineers. The scope is the arrival zone only: examination rooms, diagnostics, consultation cabins, the procedure suite, any post-operative area, sterilisation and stores take nothing, in any format, at any level, at any hour. No SOSA product or setting is described as safe or unsafe for any patient or staff group; some people are sensitive to airborne fragrance, which is exactly why the clinical pathway stays fragrance-free and why a fragrance-free seat must genuinely exist somewhere a person would ordinarily sit. No effect on ratings, reviews, footfall, patient numbers, enquiries or revenue is claimed. SOSA publishes no installation service, no stated lead time, no delivery window, no warranty term, no maintenance contract, no bulk pricing and no multi-location programme — scenting should not appear in a services scope or a project programme, and you should ask through the contact page before assuming otherwise. | |||
Shop this guide
Three products, and what each asks of a drawing
Mountain Breeze · nothing on any drawing₹849Shop → Sukoon · one socket, one surface₹1,899Shop → Vaayu · freestanding, never ducted₹11,999Shop →
The SOSA principle
The most useful thing an architect can do about scenting a clinic is to design one thing out of the drawing. Duct integration is the elegant answer in every other building type and the wrong answer here, because a central system carries fragrance into consultation and imaging in the same breath as it carries it into reception — and no setting is low enough to fix a routing problem.
Everything else in the brief is a socket, a surface and a sightline, and none of it costs anything at drawing stage.
Part three — why the HVAC proposal must be refused
I want to give this its own section because it is the one recommendation in this cluster I will not soften, and because the people who propose it are usually right about everything else in the building. Duct integration is a good idea in a hotel lobby, a showroom, a retail floor and a corporate reception. It produces an even result across a large area, it conceals the hardware entirely, it removes any object from the sightline, and it takes the running of the system away from staff who might otherwise adjust it. Every one of those is a genuine advantage, and an architect or services consultant proposing it for your clinic is applying sound professional judgement from adjacent work. The reason it fails here is specific to what a clinic is. Your central system does not serve your reception; it serves your building. The same plant, the same ducts and the same schedule reach your consultation cabins, your workup room, your imaging room and frequently your procedure corridor. Introducing fragrance at the air-handling unit therefore delivers fragrance to all of those, deliberately and evenly, which is precisely the outcome every page in this cluster is written to prevent. And it cannot be solved by dose. Turning it down does not change where the material goes; it only changes how much of it arrives in a room that should have none. The objection is about routing, not concentration, which is why there is no compromise position available and why the answer has to be a flat one.
There is a second-order version of the same error that is subtler and much more common, and it is worth briefing the architect on explicitly: a freestanding machine placed directly beneath or beside a return grille is a slow, accidental duct installation. A return draws air out of the room and delivers it into the plant, from where it goes wherever that system goes. Nobody has connected anything, and yet the outcome is the same in kind if smaller in degree. This is why the brief includes marking the returns on the reception ceiling plan — not because the architect needs to design anything around them, but because the placement instruction "away from every return grille" is meaningless unless somebody knows where they are. In a building where the reception return happens to sit at the far end of the waiting area, this single line changes the placement entirely, and it is far easier to see on a drawing than to work out in a finished room. I would note the limit of my competence here plainly: I am telling you where I would not put a small appliance. How your air handling should be designed, how much fresh air it should introduce, how the clinical rooms should be served and every accreditation question attached to any of that belongs to your clinicians and your services engineer, and I would be sceptical of any fragrance supplier who offered you a view on it.
The third thing to settle with the design team is what does not belong in their scope at all. Scenting should not appear in the tender, the services scope, the BOQ or the project programme, and the reason is practical rather than territorial. It requires no installation, no commissioning and no maintenance contract, so a line item creates obligations that nobody can fulfil. More pointedly, SOSA publishes no installation service, no stated lead time and no delivery window, along with no bulk or commercial pricing, no B2B or corporate page, no annual maintenance contract, no stated warranty term and no multi-location programme; warranty length, spare parts, servicing and whether the Bluetooth app is iOS or Android are all unverified. If a scenting line appears in a construction programme with a commissioning date against it, that date is invented. And there is a supply fact that belongs in the same conversation, particularly if the design team is specifying a machine: there is no separate Vaayu cold-air refill oil on sale at the time of writing. The machine ships with four cold-air fragrances at 100ml each — 4 × 100ml = 400ml — lasting roughly 90+ days at 400 ÷ 90 = 4.4ml a day, and that is the whole supply available. The water-based Hotel Collection is never a substitute. Ask through the contact page, in writing, before anybody specifies it. What the architect should hand over instead is a one-page note: a socket, a surface, a sightline, marked grilles and the prohibition. That note is the deliverable.
An architect scenting a hotel hides the machine in the ceiling and is right to. An architect scenting a clinic keeps it out of the ceiling entirely, because the ceiling goes to the rooms where nothing may go.
— Sonal Sahani, SOSA
Part four — the specification note to hand over
Everything above, compressed into the note I would attach to a design brief. Seven lines, each with the reason beside it, so that nobody has to take it on trust.
The one-page note
The line, the reason, and what it costs to include at design stage
| Line of the note | The reason, in one sentence | Cost to include now | Cost to correct later |
|---|---|---|---|
| No fragrance in any air-handling system ★ | The plant serves consultation and imaging in the same breath as reception | Nothing — it is a sentence on a drawing | Removing a commissioned duct connection, which nobody funds |
| Return grilles marked on the reception RCP | A source near a return is an accidental duct installation | Nothing; they are already drawn elsewhere | Working it out under a finished ceiling |
| One twin socket, low level, far end of waiting | Otherwise the machine ends up on the counter, the worst position | A few hundred rupees at first fix | Surface conduit or a floor cable in a new reception |
| A stable low surface, not the counter | A clinic counter accumulates; anything on it becomes clutter | Nothing if it is in the furniture schedule | Little — this one is genuinely easy afterwards |
| Source out of the entrance sightline | A visible machine invites evaluation of a decision better left unnoticed | Nothing | Nothing, but it rarely gets moved once installed |
| Closable boundary to the clinical corridor | Without it the fragrance-free boundary exists on paper only | A drawing revision | Building works, which in practice means it does not happen |
| Secondary seating away from the source | A fragrance-free seat has to be somewhere a person would sit anyway | Nothing at layout stage | Often impossible; the plan has already decided |
Honest notes for buyers: nothing on this page is medical, clinical, ventilation, air-handling, mechanical, building, fire, infection-control, accreditation or regulatory advice, and no clinical outcome, patient response, safety property or business result — including any effect on ratings, reviews, footfall, patient numbers, enquiries, conversion or revenue — is claimed for any product, setting or placement. How a healthcare building should be ventilated, cooled, served and commissioned belongs entirely to the practice's own clinicians, architect and licensed services engineers. No SOSA product or setting is described as safe or unsafe for any patient or staff group; some people are sensitive to airborne fragrance, which is exactly why the clinical pathway stays fragrance-free and why a fragrance-free seat must genuinely exist somewhere a patient would ordinarily sit. Fragrance adds a scent alongside what is already in the air — it removes, neutralises, masks or purifies nothing — and SOSA sells no air purifier, no dehumidifier and no room spray; every SOSA spray is a car perfume. Coverage figures are manufacturer specifications and vary with ceiling height, air exchange, occupancy and intensity: Boond ₹899 ~150 sq ft, Sukoon ₹1,899 270–320 sq ft, Megh ₹3,499 only ~215 sq ft, less than a Sukoon — a runtime and humidity machine, never a coverage upgrade, Safar ₹3,999 with no published coverage figure at all, Vaayu ₹11,999 up to 1000 m³ ≈ 2,000–3,000 sq ft, Aangan ₹25,999 ~8,000–10,000 sq ft, Meenar ₹38,500 12,000–18,000 sq ft — the last two are HVAC nebulising machines for large commercial public areas and are not a way around the prohibition in a clinical building. Boond, Sukoon and Megh are ultrasonic and add humidity; reeds and the Vaayu add none. Reed strength positions are on SOSA's own internal scale at six reeds, not an industry standard, a concentration or a quality ranking, and no bottle-life figure is published below six reeds; replacement reeds are not sold separately, and the reed range has no oud, no musk-forward composition and no aquatic. A 50ml lasts 6–8 weeks and a 130ml 14–18 weeks, and both project the same — size buys duration, never reach. Reed oil cannot go in an ultrasonic machine, water-based Hotel Collection cannot go in a reed bottle, and neither goes in a Vaayu. Oil-only reed refills are 300ml ₹2,399, which is ₹2,399 ÷ 300 = ₹8.00 a millilitre, and 500ml ₹3,499, which is ₹3,499 ÷ 500 = ₹7.00, against ₹749 ÷ 50 = ₹14.98 for the smallest bottle. Hotel Collection water-based fragrance is for ultrasonic machines only: 15ml ₹299 (₹299 ÷ 15 = ₹19.93 a millilitre), 100ml ₹999 (₹999 ÷ 100 = ₹9.99), 300ml ₹1,799 (₹1,799 ÷ 300 = ₹6.00), and a pack of seven 15ml at ₹1,799, which is 7 × 15ml = 105ml, so ₹1,799 ÷ 105 = ₹17.13 a millilitre — variety, not value. SOSA does not currently sell a separate Vaayu cold-air refill oil; the 400ml supplied lasts roughly 90+ days and is the whole supply at the time of writing, so any practice planning continuous or multi-site use must confirm current refill availability with SOSA before committing, and the water-based Hotel Collection is never a substitute. SOSA publishes no bulk or commercial pricing, no B2B or corporate page, no annual maintenance contract, no installation service, no stated warranty term, no lead time and no multi-location programme, and warranty length, spare parts, servicing and whether the Bluetooth app is iOS or Android are all unverified — nothing here implies a discount, a slab, an invoice arrangement, an installation visit, a service contract, a warranty period or a delivery window, and scenting should not appear in a services scope or project programme. Ask through the contact page before committing. Never mount a Vaayu, or any diffuser, into a clinic's shared HVAC. Hotel Collection scents are inspired by hotel styles only; SOSA is independent and unaffiliated, and no hotel group is a SOSA customer, partner or reference. Free shipping above ₹499.
What most clinics actually put on that socket
SOSA Sukoon · 500ml ultrasonic, remote, steady / 2H / 4H ₹1,899
Rated 270–320 sq ft, 16–18 hours on low, remote control, steady, 2H and 4H timer modes, and three 15ml Hotel Collection scents in the box. It is worth telling your architect that this — not the eleven-thousand-rupee machine — is what most Indian eye clinics end up using, because it changes the ambition of the drawing in a helpful direction: a low surface, a socket, and nothing else. The reason is arithmetic rather than modesty. Reception plus waiting in an Indian eye practice is typically 150–400 sq ft, and anything under 320 sits comfortably inside a Sukoon's rated range whatever the building's total area — including in practices of 1,500 or 2,400 sq ft whose receptions are simply compact. Three 15ml scents in the box let the practice settle on one before buying a 300ml at ₹1,799, which is ₹1,799 ÷ 300 = ₹6.00 a millilitre against ₹299 ÷ 15 = ₹19.93; machine plus a 300ml is ₹1,899 + ₹1,799 = ₹3,698. Two limits the design team should know rather than discover. It is ultrasonic, so it aerosolises water and adds humidity, which is a genuine consideration in a coastal building and a reason not to place one in a reception that already runs damp. And it has no key-lock, so where a practice expects several people on a desk and a level that drifts upward across a season, that is the argument for the tier above — an argument about control, not coverage. Placement is the same in every case: far end of the waiting area, away from the corridor to consultation and every return grille.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The most professional set of drawings I have ever been sent by a clinic arrived from an architect rather than from the practice, with a covering note asking whether the scenting take-off had been sized correctly. They had drawn an in-duct atomiser at the air-handling unit serving the whole first floor. It was a competent piece of work and I had to reply that we would not supply into it.
The architect's response was the reasonable one: they had done exactly this on two hotels and a car showroom and it had been the right answer in all three. I agreed with that, and said the difference was not the fragrance or the equipment but the destination. In a hotel every room the duct reaches is a room where fragrance is wanted. On their drawing, the same duct served four consultation cabins, a workup room and an imaging room, and there is no dose low enough to make that acceptable, because the objection is about where the material goes rather than how much of it arrives.
What replaced it was smaller than the drawing it came from: a twin socket at the far end of the waiting bank, a low console in the furniture schedule, the return grilles marked on the reception ceiling plan, and one sentence on the services drawing saying that fragrance was not to be integrated into any air-handling system in the building. The architect told me afterwards that the sentence was the useful part, because it stopped the question being reopened by three different contractors at three different stages. That note is the deliverable, and it costs nothing. Composed and made in small batches in Pune, and a part of every order funds a girl's classroom through Nanhi Kali.
Frequently asked questions
Our services consultant says duct integration gives the most even result. Are they wrong?
They are right about evenness and wrong about the building. Duct integration does produce the most even distribution, which is exactly the problem: the system serves your consultation cabins, workup and imaging rooms in the same breath as your reception, so an even result means fragrance in rooms that must have none. The objection is about routing rather than dose, so turning it down does not help. The Vaayu is physically capable of HVAC mounting and in a hotel it would be the elegant answer; in a clinic you must not use it that way. Put a sentence on the services drawing ruling it out, so the question is not reopened by each contractor in turn.
Does a scent machine need a dedicated circuit or any services coordination?
No. A Vaayu runs at DC 12V/1A, around 5W, and an ultrasonic machine is in the same order; one twin socket is the entire electrical requirement, with no isolator, no data and no building-management integration. What matters is position, not capacity: the socket goes at low level at the far end of the waiting area, clear of the seating gangway and away from return grilles, because a machine ends up wherever the nearest socket happens to be and in most receptions that is the desk — the worst available position. If your practice will use reed diffusers instead, the requirement is nil: no power, no socket and nothing on any drawing.
Should the scenting be in the tender so the contractor installs it?
No. It needs no installation and no commissioning, so a construction line item creates obligations nobody can meet — and SOSA publishes no installation service, no stated lead time and no delivery window, so a commissioning date against it would be invented. It also invites the one specification I will not supply into a clinic, which is a duct connection. What belongs in the project documents is the prohibition, the marked grilles, the socket and the surface. The product itself is bought by the practice months after opening, once the building has stopped smelling of its own fit-out, and it belongs on the housekeeping schedule rather than the BOQ.
Where exactly should the machine stand?
Freestanding, on a stable surface at waist to chest height, at the end of the waiting area furthest from the corridor to consultation, away from every air-conditioning return grille, out of the first sightlines from the entrance, and reachable by staff without crossing the room in front of waiting patients. Not on the reception counter, which accumulates through the day and sits closest to the corridor. Not on a lit plinth, because a clinic is judged on competence and a displayed fragrance machine invites a patient to evaluate a decision that is better left unnoticed. A reed diffuser follows the same placement and stands on a tray, because the oil marks wood and stone.
Can the architect specify the product for us?
They can name it, but the sizing should follow a tape measurement of the arrival zone rather than the building area, and that is a practice decision. Delete every clinical room from the calculation, then measure reception plus waiting with the doors as they hold during a clinic session: under about 150 sq ft, a reed diffuser; 150 to 320 sq ft, the Sukoon at ₹1,899; above about 320 sq ft on one connected public path, a Vaayu at ₹11,999, freestanding. Before anyone specifies a Vaayu, confirm current cold-air refill availability with SOSA, because no separate refill oil is currently sold and the water-based Hotel Collection is never a substitute. Aangan and Meenar are HVAC nebulising machines for large commercial areas and are not a route around the prohibition here.
Eye clinics · the owner's decisions · the architect brief
Four lines on the drawing, and one prohibition
A twin socket at the far end of the waiting area at low level, a stable surface that is not the reception counter, a sightline in which the machine is not a feature, and return grilles marked on the reception ceiling plan. Plus one sentence on the services drawing: fragrance is not to be integrated into any air-handling system in this building. Power draw is about 5W, so no dedicated circuit and no services coordination is required. Keep scenting out of the tender, the services scope and the programme, because no installation service, lead time, delivery window or warranty term is published. Size to the arrival zone; under 320 sq ft the Sukoon at ₹1,899 is the sized product. Free shipping above ₹499.
Sukoon ₹1,899 → Vaayu ₹11,999
Continue the read
More for the practice owner
- When to plan scenting in a new clinic project — layout stage, and why.
- A 1,800 sq ft centre with central AC — the same trap, in an existing building.
- Matching scent to the interior and scent after a heavy interiors spend.
- Reeds, sprays or a machine — the pillar this family resolves into.
- 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. It sets out what an architect designing an eye clinic should be briefed on regarding scent-machine placement — a socket, a surface, a sightline and marked return grilles — and why the one thing that must be designed out is integration of fragrance into the building's air handling, which would deliver fragrance into the clinical pathway by design. Nothing in it is medical, clinical, ventilation, air-handling, mechanical, building, fire, infection-control, accreditation or regulatory advice; how a healthcare building is ventilated and commissioned belongs to the practice's own clinicians, architect and licensed engineers. No clinical outcome, patient response, safety property or business result is claimed. Prices and specifications were verified from the live SOSA store in August 2026; coverage figures are manufacturer specifications. SOSA publishes no installation service, lead time, delivery window, warranty term, maintenance contract, bulk pricing or multi-location programme. No competitor is named or rated, and no hotel group is a SOSA customer, partner or reference.SOSA range, specifications and prices used in this guide (verified August 2026): Vaayu ₹11,999 — waterless cold-air nebulisation of undiluted fragrance oil; no water, no heat, no added humidity, no white mineral dust. Coverage up to 1000 m³, about 2,000–3,000 sq ft. 400ml refillable tank lasting roughly 90+ days at a mid setting. Bluetooth app plus onboard controls, 1h / 4h / 8h / 24h run windows, day selection, adjustable intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. SOSA does not currently sell a separate Vaayu cold-air refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, so a practice planning continuous or multi-site use should confirm current refill availability with SOSA before committing. The water-based Hotel Collection is made for ultrasonic machines and must not be used in a Vaayu. Other machines: Boond 300ml ₹899 (~150 sq ft, ultrasonic) · Sukoon 500ml ₹1,899 (270–320 sq ft, 16–18 hours on low, remote and steady/2H/4H timers, three 15ml fragrances included, ultrasonic) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine that covers less than a Sukoon, never a coverage upgrade) · Safar ₹3,999 (waterless cold diffusion, cordless, 20ml, about 6.9cm, three speeds, 1/2/3-hour auto-off — sold as a car and travel diffuser, personal-scale only; SOSA publishes no coverage figure for it) · Aangan ₹25,999 (HVAC nebulising, ~8,000–10,000 sq ft) · Meenar ₹38,500 (commercial HVAC, 12,000–18,000 sq ft). Water-based Hotel Collection for ultrasonic machines: 15ml ₹299 · 100ml ₹999 · 300ml ₹1,799 · pack of seven ₹1,799; scents are inspired by the atmosphere of well-known hotels — SOSA is an independent Indian brand and is not affiliated with, endorsed by or supplying any hotel group. Reed diffusers ₹749–₹1,349 (50ml 6–8 weeks, 130ml 14–18 weeks, six fibre reeds, no 100ml size; replacement reeds are not sold separately). Reed oil cannot be used in an ultrasonic machine and Hotel Collection oil cannot be used in reeds. SOSA sells no room spray or home spray — every SOSA spray is a car perfume. Nothing in this guide is medical, clinical or safety advice. A fragrance diffuser adds a scent to the air. It does not clean, purify, filter, sanitise or disinfect air, does not remove or neutralise disinfectant, damp or occupancy smells, and has no effect on comfort, anxiety, waiting time, recovery or any clinical outcome. Some people are sensitive to airborne fragrance, which is why this guide recommends that examination rooms, diagnostic areas, consultation cabins, procedure suites and post-operative areas remain fragrance-free, that a fragrance-free seating option always exist, and that a diffuser is never mounted into shared HVAC in a clinical building. Decisions about clinical policy, ventilation standards, infection control and patient suitability rest entirely with the practice and its clinicians. A persistent stale, damp or disinfectant smell is a ventilation, moisture or cleaning problem — SOSA sells no dehumidifier and no air purifier, and fragrance should never be used to cover one. Coverage, runtime and longevity figures are manufacturer specifications and typical ranges, not guarantees, and vary with room volume, ceiling height, air exchange, occupancy and season. SOSA publishes no commercial or bulk pricing, no corporate account, no annual maintenance contract, no installation service, no stated warranty term and no multi-location programme; warranty length, spare parts, servicing and app platform availability are unconfirmed, and larger or multi-site enquiries should go through the contact page before any commitment. Composed and made in small batches in Pune, India. 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.