★ Timing the Placement Decision
At MEP coordination, on the same drawing set as the false ceiling and the joinery - not after either is built
★ ★ ★ ★ ★
★★★★★
"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 this timeline covers
SOSA VaayuOne zone, placed at MEP stageView ₹11,999
SOSA VaayuA second zoneView ₹11,999
SOSA AngaanThe whole villa on the HVACView ₹25,999
✓ Placed alongside the false ceiling and joinery drawings, at MEP coordination - never after either is built ✓ 5W is a trivial load - the timing is a joinery and ducting question, not a power one ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Home Scenting Guides · Smart Homes
Is it too late to plan scent-machine placement once the false ceiling is installed? Effectively yes, for a clean result. Once the false ceiling closes and the joinery is fitted, the wall or HVAC mounting point and the power point cannot be added without visible disruption. The window for a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) to disappear into the build is the MEP coordination stage, before that happens.
What drawings should show the scent-machine placement? The same MEP and joinery drawing set that shows the false ceiling layout, the HVAC ducting, and the electrical first-fix points. Marking a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) there, alongside the supply vents, ensures the power point and mounting position are settled before construction closes over them.
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 about 5W, sized 165 x 80.5 x 215mm at 0.9kg, freestanding, wall or HVAC mountable. 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 and programmable schedules, 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.
Scent-machine placement belongs at the MEP coordination stage - the same drawing set that fixes the false ceiling layout and the joinery, and the same point in the calendar after which the decision stops being free.
Quick answers — read this first
When should scent-machine placement be planned in a luxury home project? At MEP coordination stage, on the same drawing set as the false ceiling and joinery - before either is built. A SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) needs a wall or HVAC mounting point and a discreet 5W power point marked at that stage; decided after the ceiling closes, it becomes a visible machine or a trailing cable instead of a designed fixture.Is it too late to plan scent-machine placement once the false ceiling is installed? Effectively yes, for a clean result. Once the false ceiling closes and the joinery is fitted, the wall or HVAC mounting point and the power point cannot be added without visible disruption. The window for a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) to disappear into the build is the MEP coordination stage, before that happens.
What drawings should show the scent-machine placement? The same MEP and joinery drawing set that shows the false ceiling layout, the HVAC ducting, and the electrical first-fix points. Marking a SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) there, alongside the supply vents, ensures the power point and mounting position are settled before construction closes over them.
The short answer
Short answer: at MEP coordination stage, on the same drawing set as the false ceiling and joinery layout - before either is built. A SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) needs its wall or HVAC mount and 5W power point marked at that point, or it becomes a visible retrofit later.
The pick: the SOSA Vaayu (₹11,999) for a single zone, or the SOSA Angaan (₹25,999) for a whole villa - either placed at the MEP coordination stage.
Next step: check where the project stands against the false ceiling and joinery schedule, then write to us to confirm placement before that window closes.
In this guide
The decision has a real deadline on the calendar, not just in principle - it sits at MEP coordination, before the two rows that close the window.
The two machines - tap either to see the specification
For one zone
SOSA Vaayu · ₹11,999
For a whole villa
SOSA Angaan · ₹25,999
Check the timeline
Talk to us
Straight answer
When should scent-machine placement be planned in a luxury home project?
The precise moment is MEP coordination - the stage where the false ceiling layout, the HVAC ducting, the electrical first-fix points and the joinery drawings are all being finalised together. A SOSA Vaayu (₹11,999) or SOSA Angaan (₹25,999) needs exactly the same kind of decision as a downlight or a return-air grille at that stage: a mounting point (wall or HVAC), a discreet power point for its 5W load, and a position checked against the supply-vent layout so the fragrance is not pulled straight into the return air. All of that is simple to mark on a drawing set that is still being issued for construction. Once the false ceiling closes and the joinery is fitted, none of it is undoable cleanly - the mounting point is now behind a finished surface, and the power point, if it was not planned, does not exist where it is needed. The result of missing this window is a visible machine, an extension lead, or a compromise position, all things a finished luxury interior is built specifically to avoid. If a project has not yet reached MEP coordination, there is still time to plan this properly; write to us with the drawings and we will help place it before the window closes.
At MEP coordination stage, alongside the false ceiling, ducting and joinery drawings - before any of them are built. After that, only a visible retrofit is possible.
For most zones the machine to place at this stage is the SOSA Vaayu - waterless, under 38dB, 5W, freestanding or wall/HVAC mounted. Mark its mount and power point on the MEP drawings now.
See the SOSA Vaayu ₹11,999 Book a scenting plan
The window
MEP coordination is the last stage this is free to decide
The two machines this timeline covers
Whichever machine the project needs, the timing is the same: mark it on the MEP drawings before the false ceiling and joinery are built, not after.
One zone, placed at MEP stage
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³ - about 2,000-3,000 sq ft. 5W, freestanding, wall or HVAC mount. Marked on the drawings at MEP coordination, it disappears into the finished room.
From ₹11,999
A second zone
SOSA Vaayu (second unit)
A second zone needs its own mount and power point marked at the same MEP coordination stage as the first.
From ₹11,999
The whole villa on the HVAC
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, mounted to the building's air handling, so its timing folds naturally into the ducting drawings already being finalised.
From ₹25,999
The exact point in the project calendar
The timing question has one clean answer, and three reasons it has to be this early rather than any later.
1
MEP coordination is the right stage
The same drawing set as the false ceiling and ducting
MEP coordination is where the false ceiling layout, the HVAC ducting, the electrical first-fix and the joinery are all reconciled against each other before construction proceeds. A scent machine's mounting point and power point belong on that same set, because they interact with exactly the same constraints - ceiling voids, duct runs, and cabinetry - that this stage exists to resolve.
Tip: if it is not on the MEP drawings, it is not actually planned yet.
The Vaayu's mounting options - freestanding, wall or HVAC - map directly onto the choices already being made at this stage for other fixtures.
See SOSA Vaayu →
2
After the ceiling closes, the option narrows
The mounting point disappears behind a finished surface
Once the false ceiling is installed and painted, a wall or HVAC mount can no longer be added without cutting into a finished surface. What was a marked point on a drawing becomes a visible repair. This is why the deadline is not vague - it is a specific, physical moment in the build schedule, and it passes whether or not the placement question was raised.
On a villa using the Angaan, the same deadline applies to the HVAC ducting run, which closes at the same construction stage.
See SOSA Angaan →
3
After the joinery is fitted, the power point is gone
5W is trivial - only if the point already exists
A 5W load is nothing to add to an electrical plan while it is still being drawn. It is a genuine problem to add after the joinery is fitted, because the only available power is now whatever socket happens to be nearby, not the discreet point that would have been chosen at design stage. The electrical work is not hard; the timing is what makes it easy or difficult.
Tip: 5W is a trivial load - the deadline is about joinery and ducting, not power capacity.
A Vaayu placed with its power point planned at MEP stage needs nothing more than the standard fit-out electrical work already underway.
See SOSA Vaayu →
The SOSA principle
Most placement mistakes are not caused by anyone deciding the wrong spot. They are caused by nobody deciding a spot before the point in the calendar when a spot could still be chosen.
MEP coordination is that point. Before it, the decision is free. After it, it is a compromise.
Before the ceiling, not after
There is no ambiguity in when this belongs: the same drawing set, and the same coordination meeting, that fixes the false ceiling and the ducting.
The SOSA plan
The project calendar, and what happens at each stage
| Project stage | What is still possible |
|---|---|
|
MEP coordination - drawings being finalised
|
Mark the mount, the 5W power point and the supply-vent clearance freely View → |
|
Joinery drawings issued, false ceiling not yet installed
|
Still possible, with careful coordination against the finish View → |
|
False ceiling closed, joinery fitted
|
Placement is now a compromise - a visible machine or a trailing cable View → |
|
Handover
|
Effectively too late for a clean result; the machine becomes an obvious addition View → |
The related question of who signs off on this decision - the interior designer, the automation integrator, or both - is answered in can interior designers and automation integrators specify scenting together, and the broader case for raising it at all during design is in should automated scenting be presented during the smart-home design stage. For the wider argument on why the air belongs in the same planning conversation as the rest of the house, see the pillar guide on automating fragrance like lights, curtains and air-conditioning.
The window is MEP coordination
SOSA Vaayu needs its mount and 5W point marked on the MEP drawings, at ₹11,999 - before the false ceiling closes.
The placement decision does not get harder over time. It gets impossible, at a specific and predictable point on the calendar.
— Sonal Sahani, SOSA
What has to be on the drawing set
A mount, a power point, and clearance from the supply vent
The project stage this belongs to
Two machines share one deadline: the Vaayu for a zone, the Angaan for a whole villa on the HVAC, both needing their mount and power point marked at MEP coordination. Both are waterless, made in India, and priced as a one-off purchase plus refills. A portion of every order supports girl-child education through Nanhi Kali.
The project stage this belongs to
Two machines, one calendar deadline
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
One zone, marked at MEP coordination | 5W power point, wall/HVAC mount, clear of a supply vent | ₹11,999 View → |
|
SOSA Angaan
|
A whole villa, folded into the ducting plan | Same coordination stage, on the HVAC drawings | ₹25,999 View → |
If the project has not yet reached MEP coordination, this is exactly the right moment to raise it. Write to us with the drawings and we will help place it before the window closes.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
Every project I have seen do this well raised the question at the same meeting where the false ceiling and the ducting were being finalised - not before, when nothing was concrete enough to place against, and not after, when it was already too late. MEP coordination is a very specific, very findable point on any project calendar.
A SOSA Vaayu (₹11,999) or SOSA Angaan (₹25,999) needs the same two things marked at that stage as any other fixture: a mounting point and a power point. 5W is a trivial addition to an electrical plan that is still being drawn. It becomes a genuine problem only once the ceiling and joinery are physically built, because at that point there is no longer a page to mark - there is only a finished wall.
So my honest answer to when is not "as early as possible" in a vague sense - it is a specific meeting. Ask whoever is running MEP coordination whether scenting is on the drawing set, and if the project has not reached that stage yet, there is still time. Everything is made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
When should scent-machine placement be planned in a luxury home project?
At MEP coordination stage, on the same drawing set as the false ceiling layout, HVAC ducting and joinery. A SOSA Vaayu (Rs 11,999) or Angaan (Rs 25,999) needs its wall or HVAC mount and 5W power point marked at that point, before the false ceiling closes and the joinery is fitted.
What is MEP coordination and why does scent-machine placement belong there?
MEP coordination is the stage where mechanical, electrical and plumbing drawings are reconciled with the false ceiling and joinery layout before construction proceeds. Scent-machine placement interacts with the same ceiling voids, duct runs and cabinetry that stage is meant to resolve, so it belongs on the same drawing set.
Is it too late to add a scent machine once the interior is finished?
For a clean result, effectively yes. Once the false ceiling is closed and the joinery is fitted, the mounting point is behind a finished surface and the power point, if unplanned, is not where it needs to be. The result is usually a visible machine or a trailing cable.
How much electrical planning does a scent machine actually need?
Very little - about 5W, a trivial load for any electrical plan. The planning that matters is timing: a discreet power point has to be marked at the chosen mounting location during MEP coordination, not added afterwards from the nearest available socket.
Does the timing differ between a SOSA Vaayu and a SOSA Angaan?
No - both need their mounting and power decisions made at the same MEP coordination stage. The Angaan's placement additionally needs to be folded into the HVAC ducting plan, since it connects to the building's air handling directly.
MEP coordination is the deadline
SOSA — Smart Home Scenting planned at the same stage as the false ceiling and ducting
SOSA Vaayu (₹11,999, up to 1000m³) and SOSA Angaan (₹25,999, up to 3,000m³) need their mount and 5W power point marked at MEP coordination. Both made in India, with a portion of every order supporting girl-child education through Nanhi Kali. Write to us before that window closes.
Talk to us about your project → SOSA Vaayu · ₹11,999
One more look at the timeline
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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 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 about 5W, sized 165 x 80.5 x 215mm at 0.9kg, freestanding, wall or HVAC mountable. 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 and programmable schedules, 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.