How Strong Should Fragrance Be Inside a Sample Apartment?

How Strong Should Fragrance Be Inside a Sample Apartment?

★ Scenting plans for sample flats, show apartments and duplex show homesSOSA Vaayu ₹11,999 · adjustable intensity, rated to 1000m³Made in India · free scenting plan on a consultation
★ SOSA for Sample Flats and Show Apartments
Noticeable in ten seconds, forgotten in sixty. That is the whole intensity brief for a show flat.
★ ★ ★ ★ ★
★★★★★
"Wall mounted at 1.5m because every surface in the flat was styled. It reads as part of the fit-out."
Tanvi G. Surat
SOSA Vaayu · wall mount
★★★★★
"We waited two weeks after painting before switching it on. We were told plainly that scent would not cover paint, and it would not have."
Harsh P. Lucknow
SOSA Vaayu · new fit-out
★★★★★
"One machine, four bedrooms, and no dead corner as long as the air-conditioning is running."
Suresh N. Coimbatore
SOSA Vaayu · 4BHK sample flat
★★★★★
"Moved the same unit to the next tower's show flat when this one sold out. It took ten minutes."
Ayesha M. Bhopal
SOSA Vaayu · second show flat
★★★★★
"The 8 hour timer covers our whole weekend walk-in window in one setting."
Deepak S. Noida
SOSA Vaayu · weekend viewings
★★★★★
"No residue on the dining table or the glass. That was my worry with anything that sprays."
Lakshmi R. Vijayawada
SOSA Vaayu · residue-free
★★★★★
"Wall mounted at 1.5m because every surface in the flat was styled. It reads as part of the fit-out."
Tanvi G. Surat
SOSA Vaayu · wall mount
★★★★★
"We waited two weeks after painting before switching it on. We were told plainly that scent would not cover paint, and it would not have."
Harsh P. Lucknow
SOSA Vaayu · new fit-out
★★★★★
"One machine, four bedrooms, and no dead corner as long as the air-conditioning is running."
Suresh N. Coimbatore
SOSA Vaayu · 4BHK sample flat
★★★★★
"Moved the same unit to the next tower's show flat when this one sold out. It took ten minutes."
Ayesha M. Bhopal
SOSA Vaayu · second show flat
★★★★★
"The 8 hour timer covers our whole weekend walk-in window in one setting."
Deepak S. Noida
SOSA Vaayu · weekend viewings
★★★★★
"No residue on the dining table or the glass. That was my worry with anything that sprays."
Lakshmi R. Vijayawada
SOSA Vaayu · residue-free
★ The machine with the intensity dial
Adjustable intensity plus a 1000m³ rating means a small flat can be scented gently rather than flooded A softer setting also stretches the 400ml tank well past the up to 75 days quoted at heavier use Made in India · independent, not affiliated with any hotel · a portion funds girl-child education

Founder Diaries · Commercial Scenting Guides · Sample Flats
By Sonal Sahani · ISIPCA Versailles 8 min read Updated August 2026
Softer than you think. A sample flat should smell like somebody lives there, and the fastest way to lose a buyer's trust is a home that smells more perfumed than the showroom they just walked out of.
Quick answers — read this first
How strong should fragrance be inside a sample apartment? Soft. A visitor should notice it within the first ten seconds of the door opening and stop thinking about it within a minute. On a SOSA Vaayu (₹11,999), that is usually the lowest intensity in a 2BHK, low to middle in a 3BHK, and middle in a 2,000-3,000 sq ft 4BHK. The flat should always run one step below the sales gallery.

How do I know if the scent in my show flat is too strong? If anyone comments on the fragrance, it is too strong. Other signals are a visitor opening a window or a balcony door, the scent being noticeable in the lift lobby, or your sales team saying they get a headache by evening. Turn the SOSA Vaayu (₹11,999) down one step and re-check the next day.

Why can't I judge the strength myself? Because your nose adapts within minutes of being in the space, so anyone who has been in the flat for an hour will always under-rate the intensity. Set the SOSA Vaayu (₹11,999), leave the flat for at least twenty minutes, and judge it as you walk back in, or ask a colleague arriving from outside.
The short answer
Short answer: softer than you think, and always softer than the sales gallery. The test is that a visitor notices it in the first ten seconds and forgets it within a minute - on a SOSA Vaayu (₹11,999) that is usually the lowest intensity in a 2BHK, low to middle in a 3BHK and middle in a large 4BHK.
The pick: one SOSA Vaayu (₹11,999) set to a low intensity and key-locked, with the sales gallery machine one step above it.
Next step: tell us the flat size and the gallery setting and we will give you a starting level - book a free scenting plan.
How strong a sample apartment should smell, by flat size2BHK under 1,000 sq ft: lowest intensity3BHK, 1,200-1,800 sq ft: low to middle intensity4BHK or duplex, 2,000-3,000 sq ft: middle intensityThe sales gallery next door: one step above the flat, alwaysTest: clear in ten seconds, forgotten by sixty
A sample flat should always be the quieter of the two spaces on site. A home that smells strongly perfumed reads as staged, and buyers notice that faster than they notice the fragrance itself.
The machine you are setting - tap to see it
Straight answer
How strong should the fragrance be inside a sample apartment?
Soft, and softer than the sales gallery. The working test is simple: a visitor should notice it in the first ten seconds after the front door opens, and stop being conscious of it within a minute. If they are still aware of it at the balcony, it is too strong. If anybody comments on it at all, it is too strong. On a SOSA Vaayu (₹11,999) that usually means the lowest intensity in a 2BHK under 1,000 sq ft, low to middle in a 1,200-1,800 sq ft 3BHK, and middle in a 2,000-3,000 sq ft 4BHK. The machine is rated to 1000m³, about 2,000-3,000 sq ft, which is a small commercial floor, and a flat is a fraction of that, so the dial has plenty of headroom you should not use. There are two reasons to stay low. The first is credibility: a home that smells strongly perfumed reads as staged, and a buyer who registers that begins wondering what else has been arranged for them. Sales galleries can carry a slightly fuller presence because they are commercial spaces and everyone knows it; a flat cannot. The second is physiology: your nose adapts within minutes, so anybody who has been in the flat for an hour will systematically under-rate the strength. Never set the level from inside. Set it, leave for twenty minutes, and judge it walking back through the door, or ask a colleague who has just arrived from outside. Run a level for a full week before you change it. And the setting that will not help you at all: turning it up to cover fresh paint, adhesive, new PVC or damp. That gives you both smells at once. Cure and ventilate first. Use the key-lock so nobody moves the dial between viewings, and note that a lower setting also stretches the 400ml tank well past the up to 75 days quoted at heavier use. A free scenting plan will give you a starting level, and a portion of every order supports girl-child education through Nanhi Kali.
Noticeable in ten seconds, forgotten in sixty, and always one step below the sales gallery. Judge it walking in from outside, never from inside the flat.
The dial you are setting is on the SOSA Vaayu - adjustable intensity, rated to 1000m³ so a flat sits at the bottom of its range, with a key-lock that stops anyone changing your setting and a 400ml tank that lasts longer the softer you run it.
See the SOSA Vaayu ₹11,999 Book a scenting plan

The machine whose intensity you are setting

Intensity is a feature, not an accessory. The pictures link to the product page where the control options and coverage are listed in full.

SOSA Vaayu
Adjustable intensity, used at the bottom of its range
SOSA Vaayu
Rated to 1000m³ - about 2,000-3,000 sq ft - so in a flat you are working in the lower part of the dial by design. Bluetooth app and onboard buttons, 1h/4h/8h/24h timers, under 38dB, key-lock, 400ml tank lasting up to 75 days.
From ₹11,999
SOSA Vaayu
Locked, so the setting survives the weekend
SOSA Vaayu, key-locked
The key-lock is designed for public spaces, which a show flat becomes during a launch. Set the intensity once, lock it, and the flat smells the same on Sunday evening as it did on Tuesday morning.
From ₹11,999
SOSA Vaayu
The machine whose intensity you are setting
SOSA Vaayu Waterless Diffuser
1000m³ coverage (about 2,000-3,000 sq ft), adjustable intensity, 400ml tank lasting up to 75 days, Bluetooth app and 1h/4h/8h/24h timers, under 38dB, freestanding or wall and HVAC mount, auto-stop and key-lock. Made in India.

Setting the intensity, and checking you got it right

Three things to get right: the target sensation, the fact that small volumes saturate fast, and the fact that you are the worst available judge.

1
Ten seconds, then gone
The sensation you are aiming for, described precisely
A buyer opens the door and, without thinking about it, registers that the place smells clean and pleasant. Ten seconds later they are looking at the ceiling height. A minute later the fragrance has left their conscious attention entirely and is doing its work underneath. That is the target. It is not subtle to the point of absence - if nobody arriving from outside notices anything, you are too low - but it is well below the level most people set on day one.
Tip: if a visitor comments on the fragrance, it is too strong. That is the only rule you need on viewing day.
SOSA Vaayu
The Vaayu has adjustable intensity and a 1000m³ rating, so a flat runs comfortably at the low end of the dial.
See SOSA Vaayu →
2
Small volumes saturate quickly
The machine is built for a commercial floor, not a bedroom
One machine is rated to 1000m³. A 2BHK is around 250m³, a 3BHK around 425m³, a large 4BHK around 850m³. The smaller the flat, the lower the setting, because you have the same output feeding a quarter of the air. This is also why a machine tucked into a bedroom is such a bad idea: a 12 by 14 room is perhaps 50m³, and any setting that is right for the flat will be overwhelming inside that room.
SOSA Vaayu
Keep the Vaayu in the living volume and set it for the flat, not for the room it stands in.
See SOSA Vaayu →
3
You are the worst judge in the building
Nose adaptation makes the sales team unreliable
Olfactory adaptation is fast and complete: within a few minutes in a scented space, your perception of the intensity drops sharply, which is why people who work in a show flat all day will always tell you it needs to be stronger. Set the level, leave for at least twenty minutes, and judge it as you walk back in. Better, ask a colleague arriving cold, or a visitor's honest reaction. Then hold that level for a full week before changing anything.
Tip: never adjust the intensity while standing inside the flat you are adjusting it for.
SOSA Vaayu
Set it in the app, then key-lock the machine so nobody re-adjusts it by feel at four in the afternoon.
See SOSA Vaayu →
The SOSA principle
The strength that feels right to the person who has been in the flat since nine in the morning is roughly double the strength that feels right to the family walking in at four.
Set it from the doorway, not from the sofa.
SOSA Vaayu
The dial you are setting: SOSA Vaayu with adjustable intensity, rated to 1000m³ so a sample flat runs at the low end of its range, ₹11,999.

The right setting for each size of flat

Here is a starting setting for each size of flat, and the one comparison that keeps you honest.

The SOSA plan
Intensity by flat size
Your space Where to set it
SOSA VaayuA 2BHK under 1,000 sq ft, roughly 250m³
Lowest intensity on the SOSA Vaayu (₹11,999). Small volume, open doors, and a machine rated to four times the air it is feeding. View →
SOSA VaayuA 3BHK of 1,200-1,800 sq ft, roughly 340-510m³
Low to middle. Push toward middle only if the far bedroom is genuinely empty of fragrance 45 minutes after switch-on. View →
SOSA VaayuA 4BHK or duplex of 2,000-3,000 sq ft
Middle intensity, or two machines both running low if the upper level is closed off. Never one machine on maximum. View →
SOSA VaayuThe sales gallery on the same site
One step above whatever the flat is set to. The home should always be the quieter space of the two. View →

Intensity and fragrance choice interact: a heavy or sweet profile at a low setting can still feel stronger than a clean one at a middle setting, which is why we recommend white tea, light woods or soft citrus for a flat that runs all day under air-conditioning. Once the level is set, the other half of the job is when the machine runs - see how long before buyer visits a sample flat scent machine should run. If you are choosing whether the bedrooms should differ at all, should the living room and bedrooms smell different covers it, and the sales gallery scenting plan sets the gallery level the flat sits below.

SOSA Vaayu
Locked at the level you chose: The key-lock is built for public spaces, so a weekend of walk-in viewings does not end with the machine on maximum, ₹11,999.
Set it low, lock it, leave it
SOSA Vaayu ₹11,999 has adjustable intensity and a key-lock. Tell us the flat size and we will give you a starting level.
See the SOSA Vaayu Book a scenting plan
The most expensive mistake in a show flat is not an under-scented room. It is a buyer thinking, for one second, that somebody sprayed something before they arrived.
— Sonal Sahani, SOSA

The SOSA sample flat specification

One machine, deliberately run at the low end of its range. The Vaayu is waterless, runs under 38dB and holds its setting behind a key-lock. Made in India, and a portion of every order supports girl-child education through Nanhi Kali.

The SOSA sample flat specification
One machine, set soft and locked
Machine Best for Why it works Price
SOSA Vaayu A sample flat of any size, run below the sales gallery level 1000m³ rating (about 2,000-3,000 sq ft), adjustable intensity, key-lock for public spaces, 400ml tank lasting up to 75 days and longer on low, under 38dB ₹11,999
View →
A quick word on choosing: the intensity dial is where a good installation is won or lost, and almost every correction we make on site is downward. One honest note - do not raise the setting to mask a newly finished flat. Fragrance works alongside ventilation and cleaning and cannot cover fresh paint, adhesive, new PVC or damp. Cure and ventilate, then scent gently. A free scenting plan will give you a starting level for your flat size.
SS
ISIPCA
Versailles
A note from Sonal

I can usually tell how long a sales team has been in a show flat by how strong they have set the machine. Noses adapt within minutes, so the level that feels correct at five in the evening to somebody who arrived at nine is far above the level a family walking in from the lift will experience.

So I give a target sensation rather than a number: clear in the first ten seconds, gone from conscious attention within a minute. On a Vaayu that is usually the lowest setting in a 2BHK and the middle setting in a large 4BHK, because the machine is rated to 1000m³ and a flat is a fraction of that. Set it, walk out for twenty minutes, and judge it coming back through the door.

Two things I will not soften. A home that smells strongly perfumed reads as staged, so a sample flat should always run below the sales gallery. And turning the intensity up will not fix a newly finished flat: fragrance cannot cover fresh paint, adhesive, new PVC or damp, it only gives you both smells at once. Cure and ventilate first. Everything is made in India, and a portion of every order supports girl-child education through Nanhi Kali.

Frequently asked questions

How strong should fragrance be inside a sample apartment?
Soft. A visitor should notice it in the first ten seconds after the door opens and stop thinking about it within a minute. On a SOSA Vaayu (Rs 11,999) that is usually the lowest intensity in a 2BHK, low to middle in a 3BHK and middle in a 2,000 to 3,000 sq ft 4BHK. The flat should always run one step below the sales gallery.
How do I tell if it is too strong?
If anyone comments on the fragrance, it is too strong. Other signals are a visitor opening a window or balcony door, the scent being noticeable out in the lift lobby, or the sales team reporting headaches by evening. Turn it down one step and re-check the following day.
Why should the sample flat be softer than the sales gallery?
Because a gallery is understood to be a commercial space and a home is not. A flat that smells more perfumed than the showroom reads as staged, and a buyer who notices the staging starts wondering what else has been arranged for them.
Why can the sales team not judge the level?
Olfactory adaptation. Within minutes in a scented space your perception of intensity drops sharply, so anyone who has been in the flat for an hour will under-rate it and ask for more. Judge the level walking in from outside after at least twenty minutes away.
Should I turn it up if the flat still smells of paint?
No. Fragrance cannot cover fresh paint, adhesive, new PVC or damp, and a higher setting simply gives you both smells at once. Cure the finishes, ventilate properly, and then run the machine gently in a clean flat.
SOSA Vaayu
Soft costs less, too: A lower intensity stretches the 400ml tank well past the up to 75 days quoted at heavier use. SOSA Vaayu, ₹11,999.
Set it soft, lock it, and judge it from the doorway
SOSA — Sample Flat Scenting for show apartments, duplex show homes & launch flats
The SOSA Vaayu (₹11,999) is rated to 1000m³, about 2,000-3,000 sq ft, with adjustable intensity and a key-lock, so a sample flat runs at the low end of the dial and stays there. Waterless, under 38dB and made in India, and a portion of every order supports girl-child education through Nanhi Kali. Tell us the flat size and we will give you a starting level.
Book a free scenting plan → SOSA Vaayu · ₹11,999
One more look at the machine and its controls
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 adjustable intensity, a 400ml refillable tank lasting up to about 75 days depending on intensity and run hours, Bluetooth app and button control, 1h/4h/8h/24h timers, operation under 38dB, freestanding or wall and HVAC mounting, auto-stop and key-lock, and CE, RoHS and SGS certification. 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.
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