★ SOSA for Diagnostic, Pathology and Imaging Centres
The zone map is the deliverable, and it costs nothing to draw
★ ★ ★ ★ ★
★★★★★
"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
★ Hardware assigned to zones, never to rooms
SOSA VaayuOne source for the public zoneView ₹11,999
SOSA VaayuKey-lock, so a written level stays writtenView ₹11,999
SOSA AngaanA ducted public zone across a whole floorView ₹25,999
✓ Occupant state and protocol ownership decide the zone - not room size ✓ The corridor between reception and lounge is a buffer, and buffers take no source ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Diagnostic Centres
How do I decide which rooms belong to which zone? Ask two questions about each room. First, what is the occupant doing - standing at a counter, seated for a long wait, undressed, cannulated, enclosed in equipment, or waiting to be told something? Second, who owns the contents of that room - you, or your lab director, radiographer, equipment manufacturer or facilities engineer? A room where the occupant is exposed, or where somebody else owns the protocol, is a zero-list room. Everything else is public.
What should the finished map contain? Six fields and a name. Zone, the rooms in it, the scent, the level, the source and its position, and the person responsible - plus a review date. That single page survives staff turnover, which is the actual failure mode in a diagnostic centre; verbal standards do not last a quarter. It also stops the recurring argument about whether the collection cubicles can have a little bit, which they cannot.
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.
There are only three answers on a preventive-health floor, and most of the difficulty is in deciding which rooms belong to which. Two questions settle every room in the building, and once they are answered the map draws itself.
Quick answers — read this first
How should the three areas be scented differently? Reception and general waiting take the lower level of one scent. The executive lounge takes the same scent marginally fuller, because it is behind a door with its own occupancy and long dwell. Clinical testing areas take nothing at all - not a lighter setting, no source. Those are the three answers, and the only variable between the first two is intensity. The corridor joining them is a buffer and gets whatever reaches it, which is the correct outcome rather than a gap in the plan.How do I decide which rooms belong to which zone? Ask two questions about each room. First, what is the occupant doing - standing at a counter, seated for a long wait, undressed, cannulated, enclosed in equipment, or waiting to be told something? Second, who owns the contents of that room - you, or your lab director, radiographer, equipment manufacturer or facilities engineer? A room where the occupant is exposed, or where somebody else owns the protocol, is a zero-list room. Everything else is public.
What should the finished map contain? Six fields and a name. Zone, the rooms in it, the scent, the level, the source and its position, and the person responsible - plus a review date. That single page survives staff turnover, which is the actual failure mode in a diagnostic centre; verbal standards do not last a quarter. It also stops the recurring argument about whether the collection cubicles can have a little bit, which they cannot.
The short answer
Short answer: Reception takes the lower level of one scent; the executive lounge takes the same scent slightly fuller behind its door; clinical testing areas take nothing at all. Classify each room by what the occupant is doing and by who owns the room's contents. Write the result as a one-page map with a named owner and a review date - that document, not the hardware, is the deliverable.
The pick: one scent across both public zones - Mountain Breeze at ₹849 - with a SOSA Vaayu at ₹11,999 only where the public zone is genuinely large.
Next step: send the floor plan and we will return it with the three zones marked and a level against each - ask for a clinic scenting plan.
In this guide
The map itself costs nothing and is the part that survives a change of staff. The hardware is the easy half.
Machines assigned to a zone, never to a room - tap for specifications
One source for the public zone
SOSA Vaayu · ₹11,999
Why zone two is a level, not a scent
Should executive lounges have their own fragrance?
Your plan, returned with zones marked
Free clinic scenting plan
Straight answer
How should reception, the executive lounge and clinical testing areas be scented differently?
Three zones, three answers, and only one of them involves choosing anything. Zone one is reception and general waiting: one scent, held at the lower of your two levels, quiet enough that no visitor can name it. Zone two is the executive lounge: the same scent, marginally fuller, justified by a closed door, low occupancy and long dwell. Zone three is every clinical testing area: collection and phlebotomy, sample-processing and bench areas, imaging rooms and their control rooms, and changing cubicles. That zone gets no source at all - not a lighter setting, nothing. The interesting question is not what each zone gets, which is settled, but how you decide which rooms are in which. Two questions do it. The first is about the person: what is the occupant of this room doing? Standing at a counter, or seated for a long wait, are public states. Being undressed, cannulated, enclosed in equipment or waiting to be told something are not, and any room where that happens belongs to zone three regardless of its size or how nice it is. The second is about ownership: who decides the contents of this room? If the answer is your lab director, your radiographer, an equipment manufacturer or your facilities engineer, then it is not a room I will put anything into, and I am not going to offer reasoning in their territory. Between zones one and two sits the corridor, and it is the honest compromise on every plan I have drawn. It is a buffer: it gets whatever reaches it from either end and it takes no source of its own, because a buffer with a source in it stops buffering. It will fade toward the middle and that fade is the design, not a fault. One more caution - if your zones share a return duct, the air handling will move fragrance into rooms you excluded regardless of doors and placement, so read the drawing or ask your facilities engineer before assuming the map can be enforced by position alone. On some systems the honest conclusion is to run lower everywhere, or not at all. Then write it down. Six fields - zone, rooms, scent, level, source and position, owner - plus a review date, on one page in the operations file. Written standards survive staff turnover and verbal ones do not. Fragrance is an ambience decision like lighting, seating or signage, working alongside your ventilation, cleaning and laboratory protocol rather than instead of them; SOSA products are not medical devices; we make no claim that any of this affects what a customer buys; and the clinician's judgement overrides any scenting plan.
Reception low, lounge the same scent slightly fuller, testing areas zero. Classify each room by occupant state and by who owns it, then write six fields and a name on one page.
For most floors the whole plan is two bottles of one scent: Mountain Breeze at ₹849 in reception and ₹1,349 for the 130ml in the lounge. The SOSA Vaayu at ₹11,999 only once zone one is genuinely large.
See the SOSA Vaayu ₹11,999 Ask for a clinic scenting plan
One source per zone, sized to the zone
Zones are volumes of air, not areas on a drawing
Hardware assigned to zones
Machines belong to zones, and a zone is a volume of connected air rather than a set of rooms on a plan. If zone one is small, this section does not apply to you and two bottles will do the whole job. The images link through to the specifications.
For a large zone one
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³, about 2,000-3,000 sq ft, at ₹11,999. Adjustable intensity, 1h/4h/8h/24h run windows and a key-lock, which is what lets a written level survive contact with a busy front desk.
From ₹11,999
When zone one is a whole ducted floor
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, at ₹25,999 with an 800ml reservoir. Worth reading the HVAC drawing before specifying it, because ducted distribution reaches rooms your map excluded.
From ₹25,999
The two questions that classify a room
Work through the plan room by room with these. The third section is about the room the two questions cannot settle, which is the corridor.
1
One
What is the occupant doing?
Occupant state is the first filter and it is more reliable than any rule based on room type. Somebody standing at a counter, or seated in a waiting area with their coat on, is in a public state and a public room. Somebody who has been asked to undress, who is cannulated, who is enclosed inside equipment, or who is waiting to be told what a result says, is not - and no amount of good intention makes a room like that a hospitality space. This filter is useful because it survives unusual floor plans. A large, well-finished, comfortable room can still be a zone-three room if that is what happens in it, and a small shabby corridor can still be public.
Tip: Write the occupant state next to each room on the plan before you write anything about fragrance. The zoning falls out of it.
Once the public rooms are identified, add up their volume only - that figure, not the lease area, is what a Vaayu is sized against.
See SOSA Vaayu →
2
Two
Who owns the contents of the room?
The second filter is about jurisdiction rather than physics, and it is the one I hold to most firmly. Some rooms in your building are governed by somebody else's protocol: your lab director's, your radiographer's, the equipment manufacturer's, your facilities engineer's. I do not put a fragrance source into a room whose protocol I do not own, and I am not going to offer technical reasoning about those rooms either, because that is not my expertise and pretending otherwise would be worse than saying nothing. That single sentence answers a whole category of questions cleanly and honestly, and it is also the reason the zero list is not negotiable by a lighter setting.
Tip: If you would need to consult somebody else before changing a light fitting in that room, it is a zone-three room.
Place the source for zone one deep in the public volume and away from the corridor mouth - a Vaayu can be wall-mounted where a desk position would push output the wrong way.
See SOSA Vaayu →
3
Three
The corridor, which is the honest compromise
Neither question settles a corridor, because nobody is doing anything in it for long and nobody owns it in the protocol sense. My answer is always the same: it is a buffer and it takes no source. It receives whatever reaches it from reception at one end and the lounge at the other, and it fades in the middle. That fade is what keeps zone three clear - a buffer with its own source stops being a buffer and starts pushing fragrance toward the doors you were trying to protect. It also means a long corridor will read as quieter than either room it joins, which occasionally worries owners and should not. It is the correct behaviour.
Tip: Walk the corridor from both ends. If it reads as stronger than either room, something is placed too near a door.
On a ducted floor, an Angaan distributes through the air handling, so the corridor question becomes a drawing question for your engineer.
See SOSA Angaan →
The SOSA principle
Zoning is decided by what the occupant is doing and by who owns the room, never by how large or how well finished it is.
Which is why a beautiful changing cubicle gets nothing and a plain reception gets the plan's only real decision.
The three zones, written out
This is the table I would paste into an operations file, with your own room names substituted. Add the owner and the review date at the bottom and it is a working standard.
The SOSA plan
Reception, lounge, corridor and clinical areas
| The zone | Who owns it, and what it gets |
|---|---|
|
Zone one - reception and general waiting
|
Yours. One scent at the lower level, source placed deep in the room and out of the door draught, quiet enough that nobody can name it. View → |
|
Zone two - the executive lounge
|
Yours, behind a door. The same scent, marginally fuller, set for the attendant on a full shift rather than for the guest arriving. View → |
|
The corridor between them
|
Nobody's, in the protocol sense. It takes no source and carries a fade between the two levels. A buffer with a source in it is no longer a buffer. |
|
Zone three - all clinical testing areas
|
Your lab director's, your radiographer's, the equipment manufacturer's and your facilities engineer's. No source of ours goes in, at any level, and we offer no reasoning inside their territory. |
Why zone two is a level rather than a second scent is argued in should executive health lounges have their own signature fragrance, the case for zone two existing at all is in should package customers wait separately, and the full preventive-health plan is assembled in can a signature fragrance be part of a preventive-health experience. SOSA makes no health, therapeutic or wellbeing claim of any kind, and no claim that scenting affects what a customer buys.
The map is the deliverable
Send the floor plan and we will return it with three zones marked, a level against each, and the exclusions listed.
A zone is not an area on a drawing. It is a volume of air with a boundary, an occupant state and somebody who owns what goes into it.
— Sonal Sahani, SOSA
Hardware after the map, never before it
One source per zone, sized after the exclusions
The SOSA zone-map specification
Draw the map first and size the hardware afterwards, because the exclusions usually shrink the number more than owners expect. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA zone-map specification
Assigned to zones rather than to rooms
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
A public zone of roughly 1,500-3,000 sq ft after exclusions | ₹11,999, waterless, adjustable, key-locked so the written level holds | ₹11,999 View → |
|
SOSA Angaan
|
A ducted public zone across a whole floor | ₹25,999, HVAC-connected, 800ml, specified with the engineer rather than around them | ₹25,999 View → |
 SOSA Meenar
|
A hospital-scale preventive-health building | ₹38,500, quoted for roughly 12,000-18,000 sq ft of HVAC-connected space | ₹38,500 View → |
After the exclusions many floors land below all three, and then the plan is a Mountain Breeze reed at ₹849 in zone one and a 130ml at ₹1,349 in zone two. 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 what a customer buys. It works alongside your ventilation, cleaning and laboratory protocol, never instead of them, and SOSA products are not medical devices. Every clinical testing area stays unscented, staff must be able to switch a source off in seconds, and the clinician's judgement overrides any plan. Ask for a clinic scenting plan and we will mark up your plan.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The most useful hour I ever spend with an executive-health client is the one where we go through the floor plan room by room and write two words next to each: what the occupant is doing, and who owns the room. It is a slow, unglamorous exercise and it settles arguments that would otherwise resurface every few months. By the end of it, the fragrance decisions are obvious and there are only two of them.
The exercise also does something owners do not expect, which is to shrink the number they were about to buy against. On a plan of two thousand square feet, once collection, processing, imaging, control rooms and changing cubicles come out, the public volume is often less than half. I have talked more people out of a machine with a marked-up floor plan than with any argument about scent.
So the map is the deliverable here, and it is free. We make no health, therapeutic or wellbeing claim of any kind, and no claim that scenting affects what a customer buys. Fragrance is an ambience decision, like lighting or seating. Clinical testing areas stay 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
How should reception, the executive lounge and clinical areas be scented differently?
Reception takes one scent at the lower level, the lounge takes the same scent marginally fuller because it is behind a door, and every clinical testing area takes no source at all. The corridor between the first two is a buffer and gets nothing of its own. Only the intensity differs between the two public zones.
What are the two questions that decide a room's zone?
What the occupant is doing, and who owns the contents of the room. A person standing or seated with their coat on is in a public state; a person undressed, cannulated, enclosed in equipment or waiting on a result is not. And if a lab director, radiographer, manufacturer or engineer governs the room, nothing of ours goes into it.
What should a written zone map include?
Six fields and a name: zone, the rooms in it, the scent, the level, the source and its position, and the person responsible - plus a review date. One page in the operations file. Written standards survive staff changes, which is the real failure mode in a busy diagnostic centre.
Why does the corridor get nothing of its own?
Because its job is to be a buffer between a scented zone and an unscented one. A corridor with its own source stops buffering and starts pushing fragrance toward the doors you were protecting. It will fade toward the middle, and that fade is the design working rather than a gap in it.
What if the zones share an air-handling return?
Then placement alone cannot enforce the map, because a shared return recirculates everything into everywhere. Read the HVAC drawing or ask your facilities engineer before assuming a boundary exists. On some systems the honest conclusion is to run lower across the whole floor, or not to run at all.
Three zones, six fields, one owner
SOSA — Clinic Scenting the preventive-health zone map
Reception low, lounge the same scent slightly fuller, clinical testing areas at zero, corridor as a buffer. Two bottles do most floors; a machine only once zone one is genuinely large. 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 machine ladder once more, assigned by zone
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.