★ SOSA for Diagnostic, Pathology and Imaging Centres
This page has no product at the end of it - the list itself is the deliverable
★ ★ ★ ★ ★
★★★★★
"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
★ What the list does to the machine you were about to buy
SOSA VaayuSized to what is left after the subtractionView ₹11,999
SOSA VaayuOften unnecessary once the list is appliedView ₹11,999
SOSA AngaanFor the rare centre with a large public floorView ₹25,999
✓ Defined by what the occupant is doing and by who specifies the room ✓ Not defined by room size, and not negotiable by lowering the dose ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Diagnostic Centres
What decides whether a room goes on the list? Two questions, and neither is about size. First, what is the occupant doing - are they upright, dressed and free to walk out, or seated, attended to and not free to leave? Second, who specifies the contents of that room - front of house, or your lab director and facilities engineer working to written procedures? A yes to either the second half of question one or the clinical half of question two puts the room on the list.
What is left after the subtraction? Usually the entrance, reception, the general waiting seats, an executive-health lounge if you run one, and the corridor joining them. On a great many pathology floor plans that is a third of the lease or less, which is exactly why owners over-buy. Measure what is left, in cubic metres rather than square feet, and then look at products. Very often the answer turns out to be one bottle.
See the SOSA Vaayu Book a scenting plan
Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with a 400ml refillable tank lasting 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 (roughly 1.5 units of electricity a month on a ten-hour daily schedule), freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. 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, and also runs standalone wall-mounted or lay-flat. The SOSA Meenar (₹38,500) is the largest machine in the range, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space. Ambient scent is an interior and hospitality decision: it works alongside proper ventilation, cleaning and clinical protocol and is not a substitute for any of them, it is not a medical device, and SOSA makes no health, therapeutic or treatment claim of any kind and no claim that fragrance affects bookings, retention or spend. CE, RoHS and SGS are electrical and compliance marks, not medical approval. 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.
Here is the whole list in one place, written so it can be printed and pinned inside a cupboard door. It is longer than most owners expect, and the length of it is the most useful thing on this page.
Quick answers — read this first
Which areas of a pathology centre should remain fragrance-free? Collection and draw areas; bench, processing and store rooms; every scan room and its control room; changing cubicles; and any space where a patient is undressed, cannulated, enclosed in equipment or sitting with a result they have not been given yet. Also the corridor immediately outside those rooms, which stays empty as a buffer. That is the whole list, and there is no reduced-dose version of any line on it.What decides whether a room goes on the list? Two questions, and neither is about size. First, what is the occupant doing - are they upright, dressed and free to walk out, or seated, attended to and not free to leave? Second, who specifies the contents of that room - front of house, or your lab director and facilities engineer working to written procedures? A yes to either the second half of question one or the clinical half of question two puts the room on the list.
What is left after the subtraction? Usually the entrance, reception, the general waiting seats, an executive-health lounge if you run one, and the corridor joining them. On a great many pathology floor plans that is a third of the lease or less, which is exactly why owners over-buy. Measure what is left, in cubic metres rather than square feet, and then look at products. Very often the answer turns out to be one bottle.
The short answer
Short answer: Collection and draw areas, bench and processing rooms, store rooms, every scan room and control room, changing cubicles, and anywhere a patient is undressed, cannulated or waiting on a result. The corridor outside them stays empty as a buffer. The list is set by what the occupant is doing and by who specifies the room, not by size, and no line on it has a lighter-dose version.
The pick: no purchase at all on this page - do the subtraction first, and if what remains is under about 750 sq ft, one Morning Freshness reed at ₹749 is the whole answer.
Next step: send the floor plan and we will shade the zero list on it before we discuss anything you might buy - ask for a clinic scenting plan.
In this guide
Print this. It is the only part of a scenting plan that costs nothing and settles the most arguments.
What is left after the subtraction is usually smaller than you think - tap for coverage
Sized against what remains
SOSA Vaayu · ₹11,999
Turning the list into real zones
Scented and fragrance-free zones
We will shade your plan
Free clinic scenting plan
Straight answer
Which areas of a pathology centre should stay completely fragrance-free?
Here is the list, and I would rather give it to you plainly than build up to it. Collection and draw areas, including the cubicles and the chairs. Bench, processing and store rooms. Every scan room and every control room that serves one. Changing cubicles. Any room where a patient is undressed, cannulated, enclosed in equipment, or sitting with a result they have not yet been given. And the corridor immediately outside those rooms, which stays empty not because it is clinical but because a buffer with a source in it is no longer a buffer. There is no lighter-dose version of any line here. It is zero, and the word matters, because the failure mode in this category is always a small apologetic bottle rather than a large obvious one. Two things decide whether a room belongs on the list, and floor area is neither of them. The first is what the occupant is doing. Somebody standing at your counter with a coat on and a form in their hand is in a public room; they can move, they can step outside, they are passing through. Somebody seated with a sleeve pushed up, or waiting in a gown, or sitting with an envelope they have not opened, is not in a public room in any meaningful sense, whatever the drawing calls it. The second is who specifies the contents of the room. Front of house is furnished by whoever chooses your seating, signage and lighting. The working rooms are specified by your lab director, your quality lead and your facilities engineer, against procedures they own and are answerable for. A fragrance supplier is not any of those people, so a fragrance supplier does not put anything in there - and, just as importantly, does not offer you a reassuring opinion about those rooms in either direction. That is the whole of my reasoning, and it is deliberately not technical. Now the part that makes this list commercially interesting rather than merely cautious: it shrinks the volume you are buying for, often dramatically. Shade the list on a typical pathology floor plan and what remains is entrance, reception, waiting seats and one corridor - frequently a third of the lease or less. Measure that remainder in cubic metres, not square feet, and a great many centres discover they are looking at a bottle rather than a machine. That is why this page sells nothing. The list is the deliverable, and it is worth more than anything on our price list. Fragrance is an ambience decision like lighting, seating or signage, it works alongside your ventilation, cleaning and laboratory protocol rather than instead of them, SOSA products are not medical devices, and the clinician's judgement overrides any scenting plan.
Collection and draw areas, bench and processing, scan and control rooms, changing cubicles, anywhere a patient is undressed or waiting on a result, and the corridor outside them. Zero, not less.
There is no purchase attached to this page at all. Do the subtraction first; if what remains is under roughly 750 sq ft of connected air, a Morning Freshness reed at ₹749 is the entire specification.
See the SOSA Vaayu ₹11,999 Ask for a clinic scenting plan
The arithmetic the list forces on you
Subtract first, measure second, choose third
What the list does to your sizing
This page does not end at a purchase, and I would rather be blunt about that than pretend otherwise. The reason the machines appear at all is that the zero list changes which one you would need, usually downward, and quite often to nothing. Coverage figures are quoted against cubic metres of connected air, so the shaded plan is the input.
Only where the remaining public volume is genuinely large
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³, roughly 2,000-3,000 sq ft, at ₹11,999. Worth considering only once the shaded plan still leaves 1,500 sq ft or more of connected public air, and genuinely not before that point.
From ₹11,999
For the rare pathology centre with a big public floor
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, at ₹25,999 with an 800ml reservoir and programmable schedules. After a full subtraction very few pathology plans reach this, and I would say so before quoting it.
From ₹25,999
How a room gets onto the list
Two tests put a room on it and one habit keeps it there. Apply them to your own plan and you will not need me for the edge cases.
1
One
Test one: could the occupant walk out if they wanted to?
This is the test I use first because it is quick and it does not require any medical knowledge. A person at your counter can step outside if something bothers them. A person seated with a sleeve rolled up, or in a gown behind a curtain, or waiting to be told what a result says, cannot, or at least does not feel that they can. Ambient fragrance is a choice imposed on everyone in a room, and it is only defensible where leaving is easy and normal. That single question puts collection cubicles, changing rooms and any waiting position tied to an appointment onto the list without needing a second argument. It also explains why the general waiting seats stay off the list: people move around them constantly and the door is in sight.
Tip: Apply the test standing in the room rather than looking at the plan. Rooms feel more enclosed in person than they do on a drawing.
In the rooms that pass the test, the practical requirement is an off switch anybody can reach - a Vaayu stops from the desk or the app in seconds.
See SOSA Vaayu →
2
Two
Test two: whose written procedure covers this room?
If the contents of a room appear in a document that somebody in your organisation signs and is answerable for, that room is not one a fragrance supplier furnishes. Collection, bench, processing, store, scan and control rooms all sit inside somebody's written procedures. Reception, the waiting seats and the corridors between them generally do not - they are furnished the way any commercial front of house is furnished. I want to be careful here: I am not saying anything about what those procedures should contain, or what the consequences of anything would be. That is not my expertise and it would be worthless coming from me. I am only saying whose decision it is, and the answer is not mine.
Tip: Ask your quality lead which rooms are covered by a written procedure. Their list and this one will match almost exactly.
Everything a Vaayu is sold on - coverage, control, uptime, no water - is a room-air specification for public spaces, and nothing on it is clinical.
See SOSA Vaayu →
3
Three
The habit: keep it categorical, and keep it written down
A zero list that lives in somebody's head lasts about one quarter. Staff change, a well-meaning person buys a plug-in for the changing cubicle, a supplier leaves a sample behind, and within a year the rule has holes in it that nobody can date. Write it as one line per room type on a single sheet, put a name against it, and stick it inside a cupboard door where the cleaning trolley lives. Review it when the floor plan changes and at no other time. Categorical rules survive staff turnover because they need no judgement to apply; a rule that says use your discretion in the smaller rooms will be interpreted eleven different ways by eleven different people, all of them reasonable.
Tip: Add one line to the sheet: any fragranced item brought in by a supplier or a member of staff goes on the list too.
Where the remaining public floor is genuinely large, one Angaan serving it is easier to police than several small sources nobody owns.
See SOSA Angaan →
The SOSA principle
The zero list is not a safety document, because I am not qualified to write one. It is a boundary document, and its real effect is to shrink the volume you were about to buy for.
Shade it on the plan and the lease area and the scented area stop being the same number. That gap is where centres over-spend.
The zero list, ready to print
Four groups, covering every room I have ever been asked about. If a room is not here, run it through the two tests above.
The SOSA plan
Every room that stays at zero, grouped
| Group | Rooms it covers |
|---|---|
|
Where samples are taken
|
Collection and draw areas, the cubicles and chairs within them, and any curtained bay used for the same purpose. Zero, at every hour, with no smaller format permitted. |
|
Where the laboratory works
|
Bench areas, processing rooms, store rooms and the passages that serve only them. Specified by your lab director against procedures we have no part in. |
|
Imaging rooms and their control rooms
|
Every scan room and the control room beside it. What goes inside those is decided by the radiographer, the equipment manufacturer and your facilities engineer, and we say nothing further about them. |
|
Where a patient is undressed or waiting on a result
|
Changing cubicles, gowned waiting positions, and any seat where somebody is holding an unopened envelope. Also the corridor outside all of the above, left empty as a buffer. |
Turning this list into enforceable zones is the subject of how to create scented and fragrance-free zones in a diagnostic facility, the collection-area rule is argued on its own in should blood-collection areas be kept fragrance-free, and the smallest possible way to act on what is left is in the most conservative way to introduce ambient fragrance into a pathology lab. SOSA makes no health or therapeutic claim of any kind, and no claim that scenting affects how a centre performs commercially.
The list is free and it is most of the work
Send the floor plan and we will shade the zero list on it, then tell you what is left and whether it needs anything at all.
The most valuable page in a scenting plan is the one that says which rooms are not in it. Everything after that is arithmetic.
— Sonal Sahani, SOSA
If the remainder is still a large volume
The ladder, applied to what survives the subtraction
The SOSA specification for what remains
Applied only to the unshaded part of the plan, and often not applied at all. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA specification for what remains
Specified against the unshaded part of the drawing
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
A remainder of roughly 1,500-3,000 sq ft of connected public air | ₹11,999, waterless, scheduled, key-locked, one unit for the whole remainder | ₹11,999 View → |
|
SOSA Angaan
|
A remainder large enough to outgrow a single point source | ₹25,999, 3,000m³, 800ml, HVAC-connected on the public side of the plan | ₹25,999 View → |
Under those figures a reed at ₹749-₹849 or a Sukoon at ₹1,899 is the honest answer, and after a full subtraction most pathology centres land there. Fragrance is an ambience decision like lighting or signage, with no health, therapeutic or clinical claim of any kind, and no claim that it affects how a business performs. It works alongside your ventilation, cleaning and laboratory protocol, never instead of them, and SOSA products are not medical devices. Every room on the list above stays unscented, staff must be able to switch the source off in seconds, and the clinician's judgement overrides any plan. Ask for a clinic scenting plan and the shading comes back first.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
I started writing this list out for people because I got tired of answering the same question one room at a time. What surprised me was the reaction. Owners expect a supplier to want as much of the building as possible, and being handed a document that removes most of it changes the conversation immediately. Several centres have printed it, put a name against it and never bought anything, which is a perfectly good outcome as far as I am concerned.
The other thing worth saying is that the list is the same in a two-hundred-square-foot collection centre and in a flagship building. Size is not one of the tests. A one-chair draw cubicle in a shopfront branch is on the list for exactly the reasons a full processing suite is, and the smallness of the room is not a reason to make an exception - if anything it is a reason not to.
So the deliverable here is a sheet of paper rather than a product, and I would rather you left with the sheet. We make no health, therapeutic or clinical claim of any kind, and no claim that scenting affects how a centre performs commercially. Fragrance is an ambience decision, like lighting or seating. Every room on the list stays unscented, and the 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
Which rooms in a pathology centre should be fragrance-free?
Collection and draw areas, bench and processing rooms, store rooms, every scan room and control room, changing cubicles, and any position where a patient is undressed, cannulated or waiting on a result - plus the corridor immediately outside them, kept empty as a buffer. Zero in all of them, with no reduced-dose version.
Is the list different for a small collection centre?
No. Size is not one of the tests, so a single draw cubicle in a two-hundred-square-foot shopfront is on the list for the same reasons a full processing suite is. What changes with size is the remainder: in a small branch what is left is a few square metres of waiting space, and one bottle covers it comfortably.
Why is the corridor outside those rooms on the list?
Not because it is clinical, but because it is doing a job by being empty. A corridor buffers whatever reaches it from the public zone and fades along its length. Put a source in it and you have moved output closer to the boundary and lost the buffer, which is the opposite of what you were trying to achieve.
What if a room is not on the list and I am unsure?
Run the two tests. Could the occupant get up and walk out easily, and is the room's content covered by a written procedure somebody signs? If leaving is awkward, or a procedure covers it, treat the room as fragrance-free. Where you are still unsure, the cheap answer is to leave it out and lose nothing.
Does applying this list mean I need a smaller machine?
Very often, yes, and sometimes it means no machine at all. Coverage is quoted in cubic metres of connected air, so shading the list first is what turns lease area into scented volume. On many pathology plans the remainder is a third of the building, which moves the honest answer down the ladder or off it entirely.
A list, not a product
SOSA — Clinic Scenting the rooms that stay at zero, written down
Collection, bench and processing, scan and control rooms, changing cubicles, anywhere a patient is undressed or waiting on a result, and the corridor outside them. Print it, name an owner, and size only what is left. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Ask for a clinic scenting plan → SOSA Vaayu · ₹11,999
The ladder again, for whatever the plan has left
Continue the read
More from SOSA
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the planning advice applies to any brand.Facts verified 5 September 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, described by the manufacturer as approximately 2,000-3,000 sq ft, with a 400ml refillable tank lasting 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 (roughly 1.5 units of electricity a month on a ten-hour daily schedule), freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. Being waterless, it adds no moisture and leaves no residue on surfaces or equipment. 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, and also runs standalone wall-mounted or lay-flat. The SOSA Meenar (₹38,500) is the largest machine in the range, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space. Ambient scent is an interior and hospitality decision: it works alongside proper ventilation, cleaning and clinical protocol and is not a substitute for any of them, it is not a medical device, and SOSA makes no health, therapeutic or treatment claim of any kind and no claim that fragrance affects bookings, retention or spend. CE, RoHS and SGS are electrical and compliance marks, not medical approval. 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.