★ SOSA for Real Estate Sales Galleries
The count is arithmetic, not opinion - measure the air and divide by 1000
★ ★ ★ ★ ★
★★★★★
"I had a quote for five machines. We measured the volume properly, it came to 900 cubic metres, and one Vaayu did the entire gallery."
SOSA Vaayu · 2,800 sq ft gallery
★★★★★
"Our ceiling is 18 feet. On floor area we looked like one machine; on volume we were clearly two. Glad we did the maths before ordering."
SOSA Vaayu · tall gallery
★★★★★
"Two Vaayu, one per floor, because the levels are on separate air-conditioning. Same fragrance in both and the stairwell reads as one building."
SOSA Vaayu · split-level gallery
★★★★★
"When the number came out above three machines for one hall, SOSA told us to stop and use an Angaan instead. That was not the expensive advice, it was the right one."
SOSA Angaan · single hall
★★★★★
"The sample flat came out as its own volume because it has its own splits. One more Vaayu, run softer, and that was the whole addition."
SOSA Vaayu · sample flat
★★★★★
"Under 38dB matters when the count is two machines in an open gallery. You do not hear either of them over the air-conditioning."
SOSA Vaayu · noise level
★★★★★
"I had a quote for five machines. We measured the volume properly, it came to 900 cubic metres, and one Vaayu did the entire gallery."
SOSA Vaayu · 2,800 sq ft gallery
★★★★★
"Our ceiling is 18 feet. On floor area we looked like one machine; on volume we were clearly two. Glad we did the maths before ordering."
SOSA Vaayu · tall gallery
★★★★★
"Two Vaayu, one per floor, because the levels are on separate air-conditioning. Same fragrance in both and the stairwell reads as one building."
SOSA Vaayu · split-level gallery
★★★★★
"When the number came out above three machines for one hall, SOSA told us to stop and use an Angaan instead. That was not the expensive advice, it was the right one."
SOSA Angaan · single hall
★★★★★
"The sample flat came out as its own volume because it has its own splits. One more Vaayu, run softer, and that was the whole addition."
SOSA Vaayu · sample flat
★★★★★
"Under 38dB matters when the count is two machines in an open gallery. You do not hear either of them over the air-conditioning."
SOSA Vaayu · noise level
★ The two machines a count can land on
SOSA VaayuOne per 1000m³ of connected airView ₹11,999
SOSA VaayuA second unit for a separate volumeView ₹11,999
SOSA AngaanWhen the count says three or moreView ₹25,999
✓ One Vaayu covers up to 1000m³, about 2,000-3,000 sq ft - so most galleries come out at one machine, not five ✓ The count uses ceiling height, which is where floor-area rules of thumb quietly fail ✓ Made in India · independent, not affiliated with any hotel · a portion funds girl-child education
Founder Diaries · Commercial Scenting Guides · Real Estate
Does ceiling height change how many machines I need? Yes, and it is the most common costing error in a sales gallery. A 2,000 sq ft hall at 20ft holds roughly the same air as a 4,000 sq ft floor at 10ft, so a floor-area rule of thumb under-counts tall galleries. Always work in cubic metres. One SOSA Vaayu (₹11,999) is rated to 1000m³.
Do I need one scent machine per room? No. You need one per connected body of moving air. Rooms that share an open plan and one air-conditioning loop are a single volume and take a single machine; rooms on separate splits are separate volumes and take their own. A sample flat with its own air-conditioning is a separate volume, so it gets its own SOSA Vaayu at ₹11,999.
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, described by the manufacturer as approximately 2,000-3,000 sq ft, with a 400ml refillable tank lasting up to about 75 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. 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. 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.
This page is only about the number. Not placement, not fragrance, not the schedule - just how many machines a sales gallery honestly needs, the formula that produces the answer, three worked examples, and the point at which the answer stops being more Vaayu.
Quick answers — read this first
How many scent machines does a real estate sales gallery need? Usually one. Multiply length by width by height in metres for each connected space, then divide by 1000m³, which is what one SOSA Vaayu (₹11,999) covers, about 2,000-3,000 sq ft. A 2,800 sq ft gallery at a normal ceiling height is one machine. A gallery split over two separately air-conditioned levels is two. If one open hall works out at three or more Vaayu, buy a single SOSA Angaan (₹25,999) instead.Does ceiling height change how many machines I need? Yes, and it is the most common costing error in a sales gallery. A 2,000 sq ft hall at 20ft holds roughly the same air as a 4,000 sq ft floor at 10ft, so a floor-area rule of thumb under-counts tall galleries. Always work in cubic metres. One SOSA Vaayu (₹11,999) is rated to 1000m³.
Do I need one scent machine per room? No. You need one per connected body of moving air. Rooms that share an open plan and one air-conditioning loop are a single volume and take a single machine; rooms on separate splits are separate volumes and take their own. A sample flat with its own air-conditioning is a separate volume, so it gets its own SOSA Vaayu at ₹11,999.
The short answer
Short answer: count by air volume, not by rooms. Multiply length by width by height in metres, divide by 1000m³ - the rating of one SOSA Vaayu (₹11,999, about 2,000-3,000 sq ft) - and round down. Most galleries come out at one machine; three or more in a single hall means one SOSA Angaan (₹25,999) instead.
The pick: one SOSA Vaayu (₹11,999) per 1000m³ of connected air, switching to a single SOSA Angaan (₹25,999) once one open volume needs three.
Next step: send the drawings with ceiling heights marked and we will do the arithmetic with you - book a free scenting plan.
In this guide
The count comes from air volume, not from the number of rooms. Divide connected cubic metres by 1000 and round down, then check the far corner on the commissioning walk.
The two answers a count produces - tap either
One per 1000m³
SOSA Vaayu · ₹11,999
When the count says stop
SOSA Angaan · ₹25,999
Have the count checked
Free scenting plan
Straight answer
How many scent machines does a real estate sales gallery need?
Do the arithmetic, because the guess is nearly always high. Step one: list your connected volumes. A connected volume is a body of air that actually moves together - an open gallery where reception, desks and the model display share one air-conditioning loop is one volume, however many zones the architect drew. Step two: for each volume, multiply length by width by height in metres. Height is the step people skip, and it is the one that matters, because galleries are built tall on purpose: a 2,000 sq ft hall at 20ft holds about as much air as a 4,000 sq ft floor at 10ft. Step three: divide each volume by 1000m³, the rating of one SOSA Vaayu (₹11,999), described on the product page as roughly 2,000 to 3,000 sq ft. Round down, then verify on foot. Worked examples: a 2,800 sq ft gallery at 10ft is about 790m³, so one machine. The same footprint at 20ft is about 1,580m³, so two. A gallery over two separately air-conditioned levels is two regardless of the total. A sample flat on its own splits is its own volume and its own machine. And the ceiling on the whole method: if one open hall computes to three or more Vaayu, stop counting and put a single SOSA Angaan (₹25,999) on the air handling, because three small machines in one volume produce three fragrance gradients rather than one even room. Where each machine then goes is a separate question, answered in the placement guide. A free scenting plan will check your numbers, and a portion of every order supports girl-child education through Nanhi Kali.
Length x width x height in metres, divided by 1000, rounded down, per connected volume. Three or more in one hall means you need one Angaan, not three Vaayu.
The unit of the count is the SOSA Vaayu, rated to 1000m³ (about 2,000-3,000 sq ft) at ₹11,999. Waterless, under 38dB, 400ml tank lasting up to 75 days, app timers and key-lock. One per connected volume, and a second only when the arithmetic asks for it.
See the SOSA Vaayu ₹11,999 Book a scenting plan
What a count looks like
Three outcomes cover almost every sales gallery in India
The two machines the count can land on
A count can only produce two answers, because there are only two machines in a sales gallery specification. The arithmetic tells you which one and how many.
The unit of the count - one per 1000m³
SOSA Vaayu
Waterless cold-air nebuliser rated to 1000m³, about 2,000-3,000 sq ft. That single rating is what makes the count arithmetic instead of guesswork. 400ml tank lasting up to 75 days, Bluetooth app with 1h/4h/8h/24h timers, under 38dB, auto-stop and key-lock.
From ₹11,999
The second unit - a separate volume, not a second room
SOSA Vaayu (second unit)
A second machine is justified by a second body of moving air: another floor, a lounge on its own splits, or the sample flat. It is not justified by another doorway in the same open plan. Same fragrance in both, intensity matched at the threshold.
From ₹11,999
When the count returns three or more for one hall
SOSA Angaan
HVAC nebulising diffuser rated to 3,000m³, roughly 8,000-10,000 sq ft, with an 800ml reservoir, metal body, programmable schedules and under 42dB running. One machine on the building airflow beats three fighting each other in one volume.
From ₹25,999
The three-step count, with worked examples
Three steps produce the number, and each one has a trap in it: what counts as a volume, what height does to the total, and when the answer stops being another Vaayu.
1
Step one - count volumes, not rooms
A volume is a body of air that moves together
Open the drawing and ignore the furniture layout. What you are looking for is air-conditioning zoning. Reception, sales desks and a model display under one open ceiling on one loop are a single volume and a single machine, even if the interior designer has drawn them as three areas. A consultation cabin with a door and its own split is a second volume. A sample flat in the tower is a third. This one distinction removes more machines from a quotation than anything else, because it is the difference between counting doorways and counting air.
Tip: walk the space with the air-conditioning on and follow where the air goes - that is your volume boundary.
One Vaayu per connected volume up to 1000m³, at ₹11,999. The rating is what turns the count into arithmetic.
See SOSA Vaayu →
2
Step two - multiply by height
Where floor-area rules of thumb quietly fail
Sales galleries are built tall to feel generous, and that generosity is air you have to scent. Take each volume in metres: length times width times height. A 2,800 sq ft gallery at a 3m ceiling is roughly 790m³, comfortably one machine. Lift the same footprint to a 6m double-height ceiling and it is about 1,580m³, which is two. Nothing on the floor plan changed. This is why we ask for sections and not just plans, and why a quotation given over the phone from a square-foot number is a guess dressed as a specification.
Above roughly 2,000m³ in a single open hall, the Angaan is the honest answer at 3,000m³ on the building airflow.
See SOSA Angaan →
3
Step three - know when to stop
Three machines in one hall is a wrong answer, not a big one
Dividing by 1000 will happily tell you a hall needs three or four Vaayu. Do not buy them. Several nebulisers in one connected volume do not add up to an even room; they produce several gradients, and a buyer walking the route notices the steps. Once a single volume needs more than two machines, the specification changes shape: one Angaan on the air handling, rated to 3,000m³, distributing on airflow that already reaches every corner. Two Vaayu in two genuinely separate volumes is fine. Three in one is a design error.
Tip: round the count down and verify on foot before you round it up.
Two Vaayu in two separate volumes is a normal answer. Three in one open volume is the signal to change machine.
See SOSA Vaayu →
The SOSA principle
Every over-specified gallery I have seen was counted in rooms. Every correctly specified one was counted in cubic metres. The difference is usually three machines and about forty thousand rupees.
Round down and verify on foot. It is far easier to add a machine later than to un-scent a room.
The count table - cubic metres to machines
Here is the count as a table. Find your volume in the left column and the right column is the answer, including the point where the answer changes machine.
The SOSA plan
Cubic metres to machines - the count table
| Your volume | The count |
|---|---|
|
One connected volume up to 1000m³ (about 2,000-3,000 sq ft)
|
One SOSA Vaayu (₹11,999). This is where most sales galleries land. View → |
|
Two separate air-conditioned volumes, each under 1000m³
|
Two Vaayu, one per volume, same fragrance and matched intensity at the threshold. View → |
|
A sample flat on its own splits, whatever its size
|
One more Vaayu for the flat. It is a separate volume even though it is a small one. View → |
|
One open or double-height hall above about 2,000m³
|
One SOSA Angaan (₹25,999) on the air handling. Stop adding Vaayu at two per volume. View → |
Two things the count does not decide. It does not decide where the machines go, which depends on the air path rather than the arithmetic - that is covered in where should scent machines be installed in a property sales office. And it does not decide whether several units can sensibly run together across one project, which is a fair question we answer in can multiple SOSA Vaayu machines be used across one real estate project. If you want the count in the context of a whole project rather than a single gallery, the sales gallery planning pillar is the place to start.
Get the number right before you get the quotation
One SOSA Vaayu ₹11,999 per 1000m³ of connected air. Send drawings with ceiling heights and we will do the arithmetic with you.
The question is never how many rooms you have. It is how many separately moving bodies of air you have, and that number is almost always smaller.
— Sonal Sahani, SOSA
Why the unit is 1000m³
The rating is the whole reason the count is simple
The SOSA count specification
The count can only end in one of two machines. The Vaayu is the unit of measurement, rated to 1000m³; the Angaan replaces the whole stack once a single volume grows past what two Vaayu can do honestly. Both are waterless, both are made in India, and a portion of every order supports girl-child education through Nanhi Kali.
The SOSA count specification
Two machines, one arithmetic
| Machine | Best for | Why it works | Price |
|---|---|---|---|
|
SOSA Vaayu
|
Any connected volume up to 1000m³, including the sample flat | 1000m³ (about 2,000-3,000 sq ft), 400ml tank up to 75 days, app timers, under 38dB, key-lock | ₹11,999 View → |
|
SOSA Angaan
|
A single open or double-height hall above about 2,000m³ | 3,000m³ on the building HVAC, 800ml reservoir, metal body, programmable schedules, under 42dB | ₹25,999 View → |
Two cautions on the arithmetic. First, coverage figures assume a reasonably sealed, air-conditioned space; a gallery with doors propped open all day behaves like a bigger volume, and that is a ventilation decision before it is a machine decision. Second, fragrance works alongside cleaning and ventilation and cannot cover fresh paint, adhesive or damp, so no count fixes a fit-out smell. Send drawings with ceiling heights for a free scenting plan and we will confirm the number before you buy.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The first question every developer asks me is how many machines they need, and the honest answer usually disappoints the person who has already budgeted for six. It is arithmetic. Length times width times height, divided by a thousand, per body of air that actually moves together.
One Vaayu is rated to 1000m³, which the product page puts at roughly 2,000 to 3,000 sq ft, so a normal-height gallery of 2,800 sq ft is one machine and the same footprint under a double-height ceiling is two. The moment a single hall computes to three, I stop selling Vaayu and recommend one Angaan instead, because three nebulisers in one volume smell like three machines, not one building.
And the caveat I put on every count: the number assumes a clean, cured, properly ventilated space. Fragrance works alongside ventilation and cleaning and never instead of them, and it cannot cover fresh paint, adhesive or damp. We also make no claim that scent influences a purchase decision - what it does is make a finished gallery read as finished. Everything is made in India, and a portion of every order supports girl-child education through Nanhi Kali.
Frequently asked questions
How many scent machines does a real estate sales gallery need?
Usually one. Multiply length by width by height in metres for each connected space and divide by 1000 cubic metres, which is the rating of one SOSA Vaayu at Rs 11,999, roughly 2,000 to 3,000 sq ft. A 2,800 sq ft gallery at a normal ceiling comes to about 790 cubic metres, so one machine. Two separately air-conditioned levels come to two. A single hall that computes to three or more should be one SOSA Angaan at Rs 25,999 instead.
Does ceiling height really change the machine count?
Yes, more than floor area does. A 2,800 sq ft gallery at a 3m ceiling is about 790 cubic metres and needs one machine. The same footprint under a 6m double-height ceiling is about 1,580 cubic metres and needs two. Nothing on the plan changed, only the air above it. Always work in cubic metres and ask for sections, not just plans.
Do I need one machine per room?
No. You need one per connected body of moving air. An open reception, sales desk area and model display sharing one air-conditioning loop is a single volume and a single machine. A cabin with its own split, or a sample flat in the tower, is a separate volume and needs its own machine.
When should I stop adding machines and buy a bigger one?
When a single connected volume computes to more than two Vaayu. Three nebulisers in one hall produce three fragrance gradients rather than one even room, and a buyer walking through notices the steps. At that point one SOSA Angaan at Rs 25,999, rated to 3,000 cubic metres and connected to the building air handling, is both cheaper to run and better to smell.
Can one machine cover two floors of a gallery?
Only if the two floors are genuinely one volume, which means an open atrium with air moving freely between them and a total under 1000 cubic metres. Two floors on separate air-conditioning are two volumes and need two machines, running the same fragrance so the stairwell does not read as a change of building.
Count the air, not the rooms
SOSA — Real Estate Project Scenting sizing, counting & specification
The SOSA Vaayu (₹11,999) is rated to 1000m³, about 2,000-3,000 sq ft, and is the unit the count is measured in; the SOSA Angaan (₹25,999) replaces the stack once one hall passes what two Vaayu can do honestly. Both waterless, both made in India, and a portion of every order supports girl-child education through Nanhi Kali. Send drawings with ceiling heights and we will confirm the number free.
Book a free scenting plan → SOSA Vaayu · ₹11,999
One more look - the two machines in the maths
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 24 August 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 up to about 75 days depending on intensity and run hours, Bluetooth app and onboard button control, 1h/4h/8h/24h timers, adjustable intensity, operation under 38dB, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. 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. 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.