★ SOSA for Design-Stage Collaboration
It is an airflow decision, not a turf question - whoever owns the air handling should own the placement call
★ ★ ★ ★ ★
★★★★★
"Our whole lobby smells the same at the door as it does at the lift. Guests ask what the fragrance is and the machine is in the AHU room, they never see it."
SOSA Angaan · hotel lobby
★★★★★
"We replaced seven plug-in units with one Angaan. One refill a month instead of a daily round. Housekeeping loves it."
SOSA Angaan · facilities
★★★★★
"The showroom finally smells as premium as it looks. No visible gadgets, no wet mist near the cars."
SOSA Angaan · car 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
★★★★★
"Our whole lobby smells the same at the door as it does at the lift. Guests ask what the fragrance is and the machine is in the AHU room, they never see it."
SOSA Angaan · hotel lobby
★★★★★
"We replaced seven plug-in units with one Angaan. One refill a month instead of a daily round. Housekeeping loves it."
SOSA Angaan · facilities
★★★★★
"The showroom finally smells as premium as it looks. No visible gadgets, no wet mist near the cars."
SOSA Angaan · car 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
★ The two machines the three trades coordinate around
SOSA VaayuOne zone, one placement decisionView ₹11,999
SOSA VaayuA second zone in a larger homeView ₹11,999
SOSA AngaanA whole villa on the HVACView ₹25,999
✓ 5W is a trivial electrical load - this is a placement and joinery question, not a power one ✓ Waterless, so no moisture or residue risk to joinery, veneer, stone or electronics ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Home Scenting Guides · Smart Homes
Who should decide where a scent machine is placed in a luxury home? Whoever owns the air handling for that space. In a home with central HVAC, that is usually the HVAC consultant, working with the interior designer on where the mount sits relative to joinery and finishes. The automation integrator's role is coordination, not ownership, since the machine does not connect to the control system.
When should scenting be discussed in a design-stage meeting? At the same point lighting, HVAC and joinery drawings are being finalised, because a wall or HVAC mount and a discreet power point both need deciding before the false ceiling closes. Raised later, it becomes a visible retrofit rather than a considered placement.
See the SOSA Vaayu Book a scenting plan
Facts verified 24 August 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, roughly 2,000-3,000 sq ft, drawing 5W, sized 165 x 80.5 x 215mm at 0.9kg, freestanding, wall or HVAC mountable, with a Bluetooth app running 1h/4h/8h/24h timers and operation under 38dB. 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, connecting to the building's HVAC or standing alone wall-mounted. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.
How should an architect, an interior designer and an automation company divide up a scenting decision? The honest answer does not flatter any one of them - it follows the air. Whoever already owns the airflow should own the placement, and the other two trades support from where they naturally sit.
Quick answers — read this first
How can architects, interior designers and automation companies collaborate on scenting? Treat it as an airflow decision rather than a turf question. Whoever already owns the HVAC design - usually the HVAC consultant - should lead the placement call for a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999), with the interior designer weighing in on the finish and joinery, and the automation integrator coordinating it alongside the other services they are already installing, since 5W is a trivial electrical load.Who should decide where a scent machine is placed in a luxury home? Whoever owns the air handling for that space. In a home with central HVAC, that is usually the HVAC consultant, working with the interior designer on where the mount sits relative to joinery and finishes. The automation integrator's role is coordination, not ownership, since the machine does not connect to the control system.
When should scenting be discussed in a design-stage meeting? At the same point lighting, HVAC and joinery drawings are being finalised, because a wall or HVAC mount and a discreet power point both need deciding before the false ceiling closes. Raised later, it becomes a visible retrofit rather than a considered placement.
The short answer
Short answer: as an airflow decision - whoever owns the HVAC design leads the placement call for a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999), the interior designer weighs in on finish and joinery, and the automation integrator coordinates it with the other services, since 5W is a trivial load.
The pick: the SOSA Vaayu (₹11,999) for most zones, with the SOSA Angaan (₹25,999) for a whole villa on the HVAC.
Next step: raise placement at the same meeting as the HVAC and joinery drawings, then write to us to confirm sizing.
In this guide
No single trade is flattered here - the decision follows the air, not the org chart.
The two machines - tap either to see the specification
For most zones
SOSA Vaayu · ₹11,999
For a whole villa
SOSA Angaan · ₹25,999
Ask about a project
Write in directly
Straight answer
How can architects, interior designers and automation companies collaborate on scenting?
Start from what the decision actually is: an airflow question, not a lighting or a technology one. A SOSA Vaayu (₹11,999) or SOSA Angaan (₹25,999) needs a wall or HVAC mount, positioned clear of a supply vent so it scents the room rather than fighting the air already moving through it. That makes the HVAC consultant the natural owner of the placement call in a home with central air handling, because they already know where the air genuinely moves - which is rarely the geometric centre of a room. The interior designer contributes the finish decision: where the mount sits relative to joinery, whether it is wall-mounted in a niche or HVAC-mounted out of sight entirely, and how a discreet power point is concealed. The automation integrator coordinates the conversation, because they are usually already running the meeting that brings the other services together - but they are not the natural owner of this particular call, since the machine does not connect to anything they are installing. None of the three should defer the decision entirely to the others, and none should claim it outright. Raise it at the same design meeting as the HVAC and joinery drawings, because 5W is a trivial electrical load - this is a placement question, not a power one - and the only real cost of getting the timing wrong is a visible unit and a trailing cable after the ceiling has closed. If a project needs the sizing checked across zones, write to us with the drawings.
It is an airflow decision. The HVAC consultant leads placement, the interior designer covers finish and joinery, the integrator coordinates the meeting. Raised at design stage, before the ceiling closes.
For most zones the machine in question is the SOSA Vaayu - waterless, under 38dB, rated to 1000m³, 5W, wall or HVAC mounted. The placement call follows the air, not any one trade's title.
See the SOSA Vaayu ₹11,999 Book a scenting plan
Who owns what
Airflow leads, finish supports, coordination follows
The two machines the three trades would coordinate around
Whatever the collaboration produces, it is built from two machines: the Vaayu for most zones, the Angaan for a whole villa on the HVAC. Both link straight to the product page so the specification can be checked at the design meeting.
One zone, one placement decision
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³ - about 2,000-3,000 sq ft. 5W, 165 x 80.5 x 215mm, freestanding, wall or HVAC mount, Bluetooth app and timers.
From ₹11,999
A second zone in a larger home
SOSA Vaayu (second unit)
A larger home may need a second Vaayu for a separate zone, decided the same way as the first: by airflow.
From ₹11,999
A whole villa on the HVAC
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, with programmable schedules and under 42dB running, for a villa large enough to run one machine on the building's own air handling.
From ₹25,999
Who owns the placement decision, and when it gets made
Three questions divide the work fairly between the three trades, without any one of them owning the whole decision.
1
Who leads placement
Whoever already knows where the air moves
In a home with central HVAC, the HVAC consultant already knows where supply and return air genuinely moves, which is rarely obvious from the floor plan alone. That makes them the natural lead on where a Vaayu or Angaan is mounted, because a machine placed in the direct path of a supply vent under-performs no matter how well it is specified on paper.
Tip: placement follows the air the consultant already mapped - not the drawing's geometric centre.
The Vaayu can be wall or HVAC mounted, so the HVAC consultant's input genuinely changes where it ends up.
See SOSA Vaayu →
2
Who owns the finish
The interior designer, on joinery and concealment
Once the airflow position is known, the interior designer decides how it is concealed - a niche, a matching finish, or an HVAC mount that removes the question entirely. This is where the waterless build matters: no moisture or residue risk to veneer, stone or joinery means the designer has real freedom in the finish, not a compromise position.
The Angaan's metal body and HVAC mounting option remove the finish question from the room altogether.
See SOSA Angaan →
3
Who coordinates the timing
The automation integrator, because they run this meeting already
The integrator is usually the one already coordinating lighting, shading and audio placement in the same meeting, so they are well placed to bring the scenting decision into it - but that is a coordination role, not an ownership one, since the machine does not connect to anything they install. Raising it at that meeting, before the false ceiling closes, is the only timing that matters.
Tip: coordinate it into the existing meeting - do not create a separate one.
A Vaayu's 5W draw is trivial enough that it never needs its own electrical planning meeting.
See SOSA Vaayu →
The SOSA principle
The three trades rarely disagree about scenting once the decision is framed correctly. The disagreement only happens when nobody frames it as an airflow question first.
5W is a trivial electrical load. The genuine decision is placement and finish - which is exactly why it belongs to the trades that already own those questions.
An airflow decision, owned by whoever owns the air
There is no fourth trade to bring in here, and no need for a separate meeting. The decision follows the air, the finish follows the designer, and the timing follows the meeting that already exists.
The SOSA plan
Who owns which part of the decision
| The question | Who answers it |
|---|---|
|
Where does the machine actually go, given the airflow
|
The HVAC consultant, working from the air handling drawings View → |
|
How is it concealed or finished in the room
|
The interior designer, on joinery, niches and finishes View → |
|
When does this get decided in the project
|
At the same design meeting as HVAC and joinery, before the ceiling closes View → |
|
Who brings the topic into that meeting
|
The automation integrator, coordinating rather than owning it View → |
Once placement is agreed, the practical next step is usually the client conversation itself - see how to explain automated scenting to a luxury-home client in plain language, or, if the project is a whole apartment package rather than a single villa, how luxury builders can think about bundling fragrance into apartment packages. For the wider design-stage argument, see the pillar guide on automating fragrance like lights, curtains and air-conditioning.
An airflow decision, not a turf question
SOSA Vaayu (₹11,999) needs a placement call from whoever owns the air - raise it at the design meeting, not after.
Nobody needs to win the scenting decision. It belongs to whoever already knows where the air in the room actually goes.
— Sonal Sahani, SOSA
What the decision actually needs
A 5W point, a wall or HVAC mount, clear of a supply vent
What each trade actually contributes
The collaboration is built from two machines: the Vaayu for most zones, the Angaan for a whole villa on the HVAC. Both are waterless, 5W or equivalent trivial load, made in India. A portion of every order supports girl-child education through Nanhi Kali.
What each trade actually contributes
Two machines, three roles, one decision
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
Most zones of the home | 1000m³, 5W, wall or HVAC mount, Bluetooth app and timers | ₹11,999 View → |
|
SOSA Angaan
|
A whole villa on the HVAC | 3,000m³, programmable schedules, under 42dB | ₹25,999 View → |
If a project needs the placement checked across several zones, write to us with the HVAC and joinery drawings and we will work through it with all three trades.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
I have sat in design meetings where the architect, the interior designer and the automation integrator each politely tried to hand the scenting decision to one of the others, as if it were nobody's job. It became easy to solve the moment we asked a different question: not "whose job is this", but "whose drawings already show where the air moves".
That reframes it cleanly. The HVAC consultant leads on where a SOSA Vaayu (₹11,999) or SOSA Angaan (₹25,999) actually goes, because they already know which corner of the room the air genuinely reaches. The interior designer decides how it disappears into the finish - and waterless matters here, because there is no moisture or residue risk to worry the joinery team. The automation integrator brings it into the meeting they are already running, coordinating rather than deciding. No trade is flattered by this division, and none is diminished.
Raise it while the drawings are still open - 5W is nothing to plan around electrically, so the only real deadline is the false ceiling. Everything is made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
How can architects, interior designers and automation companies collaborate on scenting?
Treat it as an airflow decision: the HVAC consultant leads on where a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) is placed, the interior designer covers finish and joinery, and the automation integrator coordinates it into the design meeting they already run.
Who should have the final say on scent-machine placement in a luxury home?
Whoever owns the air handling for that space - usually the HVAC consultant in a home with central HVAC. They already know where air genuinely moves, which is rarely the geometric centre of a room.
Does the automation integrator need to configure anything for the scent machine?
No. SOSA Vaayu and Angaan run on their own schedule and do not connect to the control system, so the integrator's role is coordinating the placement conversation, not configuring a device.
When should scenting be raised with the design team?
At the same meeting as the HVAC and joinery drawings, because the machine needs a wall or HVAC mount and a discreet power point decided before the false ceiling closes.
Is 5W enough of an electrical load to need special planning?
No. 5W is a trivial load next to the rest of a smart home's electrical plan - this is a placement and joinery question, not a power one, and needs no special electrical coordination.
An airflow decision, owned by whoever owns the air
SOSA — Smart Home Scenting for architects, designers and automation companies
SOSA Vaayu (₹11,999, up to 1000m³) and SOSA Angaan (₹25,999, up to 3,000m³) need a placement decision at design stage, made in India, with a portion of every order supporting girl-child education through Nanhi Kali. Write to us with the drawings and we will help all three trades work through it.
Talk to us about your project → SOSA Vaayu · ₹11,999
One more look before the design meeting
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Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the planning advice applies to any brand.Facts verified 24 August 2026 against the live SOSA product pages: the SOSA Vaayu (₹11,999) is a waterless cold-air nebuliser rated to 1000m³, roughly 2,000-3,000 sq ft, drawing 5W, sized 165 x 80.5 x 215mm at 0.9kg, freestanding, wall or HVAC mountable, with a Bluetooth app running 1h/4h/8h/24h timers and operation under 38dB. 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, connecting to the building's HVAC or standing alone wall-mounted. Scent enhances the ambience and perceived quality of a space; it works alongside proper ventilation and cleaning and is not a substitute for either, and SOSA makes no claim that fragrance alone influences a purchase decision. The hotel-inspired scents are SOSA's own original interpretations; SOSA is an independent brand and is not affiliated with, or endorsed by, any hotel named for reference. Coverage, fragrance usage and running cost depend on the space, settings and hours of use, and are confirmed on a consultation. Prices and availability are subject to change - see the live product pages.