Founder Diaries · Home Fragrance · How Many to Buy
By Sonal Sahani · ISIPCA Versailles 9 min read Updated August 2026
If you are buying two machines rather than one, the order matters more than most people expect — not for coverage, but because the first room sets what the house feels like to walk into. The living room first, the bedroom second, and there is exactly one household where that reverses.
Quick answers — read this first
Which two? The living room first, then the room you sleep in.
Why that order? The living room is the largest, the most used, and the first thing anyone meets.
The reversal: if you are out all day and your bedroom doubles as your study, buy the bedroom first.
The short answer
Short answer: the living room first and the bedroom second. The living room is usually the largest enclosed space, holds the most waking hours, absorbs cooking smells, and is what anyone arriving encounters first. The bedroom follows because it is the room with the most continuous hours in it.
The pick: two
Sukoon units at ₹3,798, with six 15ml
Hotel Collection bottles between them — Ritz-Carlton-inspired (white tea, bergamot, cedar) for the living room and St. Regis-inspired (amber, violet, woods) for the bedroom.
Straight answer
Which two rooms should get Sukoons first?
1. The living room. Largest enclosed space, most waking hours, absorbs cooking, and it is the first thing anyone walking in encounters. One
Sukoon at ₹1,899 sits at the top of its 270–320 sq ft range here and that is the correct use of it.
2. The room you sleep in. More continuous hours than any other room in the house, and a closed door at night means it genuinely gets nothing from the living-room machine.
3. Give them different scents. Ritz-Carlton-inspired (white tea, bergamot, cedar) in the living room, St. Regis-inspired (amber, violet, woods) in the bedroom — the contrast at the door is the point.
4. Not the second bedroom, the kitchen or a bathroom. Those come later, or not at all — a
Boond at ₹899 handles a bathroom, and a kitchen wants extraction rather than fragrance.
5. Reverse the order if you are out all day and your bedroom is also where you work.
A portion of every order supports girl-child education through Nanhi Kali.
TL;DR: living room first, then the room you sleep in — ₹3,798 for both, six 15ml scents included. Reverse it only if you are out all day and your bedroom doubles as your workspace.
The purchase people regret not making
The second Sukoon ₹1,899
Almost nobody who owns two regrets the second. It is the machine that turns one good room into a home with a geography — and because it arrives with three more 15ml
Hotel Collection bottles, the second purchase quietly doubles your fragrance wardrobe as well as your coverage.
Why the living room goes first
Three reasons, and they compound. None of them is that the living room is the nicest room — it is that it is the room doing the most work per rupee of fragrance.
1
REASON ONE
It is the largest enclosed space
In most Indian homes the living or living-dining room is 250–350 sq ft, which sits right at the top of a Sukoon's 270–320 sq ft range. That is the correct use of a machine — a unit working near its rating rather than saturating a 110 sq ft bedroom it could scent three times over. The bedroom is the room where a Sukoon has capacity to spare; the living room is where it earns its rating.
2
REASON TWO
It carries the first impression
The first four seconds inside a front door do a disproportionate amount of the work of how a home feels, and the living room is where those seconds happen. This is the one place in a house where fragrance is doing something for other people as well as for you, and it is why hotels put their entire budget into the arrival route.
The practical version: place the living-room machine where it reaches the entrance rather than in the far corner. Same ₹1,899, considerably more effect.
3
REASON THREE
It has the most to cover up
An open or semi-open kitchen means the living room absorbs cooking every evening, and it is the room guests, shoes, bags and deliveries pass through. A bedroom starts from a cleaner baseline. Fragrance is worth most where the competing smells are — with the caveat that it layers over clean air rather than replacing extraction and an open window.
What each of the first two rooms wants
Different rooms, different jobs, different scents. Both machines are the same ₹1,899 Sukoon; what changes is what you put in them and how you run them.
The first two rooms
Machine, scent and setting
| Room |
Scent |
Setting |
Why |
| 1. Living room ★ |
Ritz-Carlton-inspired |
Steady, evenings |
White tea, bergamot, cedar — clean and lifted, reads as fresh air |
| 2. Bedroom |
The St. Regis-inspired |
Low, 2H timer |
Amber, violet, woods — warm and private, then it stops on its own |
| Not yet: second bedroom |
Westin-inspired later |
— |
Only when it is genuinely used daily |
| Not yet: bathroom |
Any, via Boond
|
Low |
₹899 rather than ₹1,899 — it is a small closed pocket |
| Never: kitchen |
None |
— |
Extraction and ventilation, not fragrance on top of cooking |
| Never: a store room |
None |
— |
Fragrance over damp makes a worse smell, not a better one |
Shop this guide
The first two machines and what runs them
The SOSA principle
Buy for the room with the most hours in it, then the room with the most doors opened into it.
Those are the bedroom and the living room in every home in India, which is why the answer is the same almost everywhere.
The household where it reverses
There is one clear exception and it has become much more common. If you leave the house early, come back late, and your bedroom doubles as your study or your work-from-home desk, then the bedroom is where your hours actually are — and the living room is a space you pass through on the way to it. Buy the bedroom machine first. The rule was never really about which room is grandest; it is about where you spend your life.
The same logic applies, more sharply, to anyone whose home has an unusual centre of gravity. A musician with a practice room, someone caring for a relative in one room, a household where the dining table is genuinely the hub rather than the sofa — in each case the first machine belongs where the hours are, not where the layout says the main room is. The rule is hours, and everything else is a proxy for it.
What does not change is the second machine. Whatever gets the first one, the other of those two rooms gets the second, and the pair should hold different scents — clean and lifted in the public room, warm and low in the private one. Two Sukoon units at ₹3,798 arrive with six 15ml Hotel Collection bottles between them, so pick a different trio for each at checkout and the whole arrangement is covered without buying a bottle separately.
Buy for the room your hours are in. Everything else about the floor plan is a distraction.
— Sonal Sahani, SOSA
The SOSA edit
The first two machines and the order to buy them in, with what comes after.
The SOSA edit
The first two, then the rest
| Order |
Room |
What to run |
Cost |
| 1st ★ |
Living room |
Sukoon on Ritz-Carlton-inspired, steady in the evenings |
₹1,899 |
| 2nd |
The room you sleep in |
Sukoon on St. Regis-inspired, low with the 2H timer |
₹1,899 |
| 3rd |
Neither — buy scent |
Hotel Collection bottles or the Pack of 7 |
₹299 / ₹1,799 |
| 4th |
Second bedroom or study |
A third Sukoon, if the room is genuinely used |
₹1,899 |
| 5th |
Bathroom |
Boond — the right size for a small closed pocket |
₹899 |
| Later |
Everyday scent |
300ml refill of whichever you keep choosing |
₹1,799 |
Honest notes for buyers: the Sukoon covers 270–320 sq ft, which is why a studio needs exactly one and a 3BHK needs three or a
Vaayu instead. Ultrasonic diffusers are water-based and add a little humidity to the room, which is a benefit in an AC-dry home and a consideration in a damp coastal one; they run SOSA's own water-based Hotel Collection fragrance and nothing else, because thicker essential and carrier oils clog the 2.4MHz misting plate. The Vaayu and the HVAC systems are waterless nebulisers running undiluted oil — a different technology, not a bigger Sukoon, and the better choice for long daily runs across connected space. Fragrance layers on top of clean air; it does not replace an extractor fan, an open window or a bin that gets emptied. The Hotel Collection scents are SOSA's own interpretations inspired by the world's finest hotels; SOSA is an independent Indian fragrance house, not affiliated with or endorsed by any hotel brand. A portion of every order supports girl-child education through Nanhi Kali.
More rooms, more moods
Hotel Collection from ₹299
Seven hotel-inspired water-based scents at ₹299 for 15ml, or ₹1,799 for the Pack of 7 — about ₹257 a bottle against ₹2,093 for seven singly. In a small home this is the upgrade that beats a second machine; in a large one it is what stops several rooms smelling identical.
A note from Sonal
People almost always guess the bedroom, because that is where they imagine enjoying it. I understand the instinct and I still say living room first — it is the bigger room, it is where the smells you are competing with live, and it is the one other people experience.
But I will always ask one question before agreeing with myself: where do your hours actually go? If the answer is a bedroom that is also a desk, buy that one first and ignore everything above. The rule is hours. The living room is just where most people's hours happen to be.
Everything is made and supported from Pune, and a part of every order funds girl-child education through Nanhi Kali. You get a home that smells like somewhere you chose; a girl gets a classroom. That equation has always felt right to me.
Frequently asked questions
Which two rooms should get diffusers first?
The living room first and the room you sleep in second. The living room is usually the largest enclosed space, carries the first impression, and absorbs cooking; the bedroom has the most continuous hours and is sealed by a closed door at night. Two
Sukoon units are ₹3,798.
Should the bedroom or living room get a diffuser first?
The living room, in most households — unless you are out all day and your bedroom doubles as your workspace, in which case reverse it. The rule is where your hours actually are; the living room is simply where most people's hours happen to be.
Should the two rooms use the same fragrance?
No. Run something clean and lifted in the living room — Ritz-Carlton-inspired (white tea, bergamot, cedar) — and something warm and low in the bedroom — St. Regis-inspired (amber, violet, woods). The contrast at the bedroom door is most of the effect.
Should the kitchen get a diffuser?
No. Kitchens want extraction and ventilation. Fragrance layered over cooking smells creates a third smell rather than removing the first, so run the extractor, open a window, and let the living-room machine take back over once the air has cleared.
Where does the third diffuser go?
Often nowhere — in most homes the better third purchase is fragrance rather than hardware. If you do have a third room used daily, that gets the third
Sukoon at ₹1,899; a bathroom is better served by a
Boond at ₹899.
The first two rooms
Living room first, then the room you sleep in
Two Sukoons at ₹3,798, six 15ml Hotel Collection scents included between them — clean and lifted in one, warm and low in the other. A portion of every order supports girl-child education through Nanhi Kali.
See the SOSA Sukoon → Choose your scents
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Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, on the order to buy the first two diffusers in and why hours in a room beat its size on the floor plan.
Facts verified August 2026: SOSA Sukoon — 500ml tank, 2.4MHz ultrasonic cool mist, 270–320 sq ft coverage, 16–18 hours runtime on low and 9–12 on high, 30–50 ml/h mist output, 7-colour LED, remote and steady/2H/4H timers, BPA-free ABS with auto shut-off and overheat protection, ~17cm high — ₹1,899, including three 15ml Hotel Collection fragrances of your choice. Boond 300ml ₹899; Megh 6-litre ₹3,499. Hotel Collection water-based fragrance 15ml ₹299, 100ml ₹999, 300ml ₹1,799, Pack of 7 × 15ml ₹1,799; 100ml and 300ml refills from ₹999. Seven scents: The Ritz-Carlton-inspired (white tea, bergamot, cedar), Westin-inspired (white tea, aloe, cedar), 1 Hotels-inspired (cedarwood, vetiver, green leaves), The St. Regis-inspired (amber, violet, woods), Shangri-La-inspired (jasmine, green tea, white tea), Four Seasons-inspired (citrus, floral, sandalwood), W Hotels-inspired (citrus, pepper, amber). Waterless systems for larger and connected spaces: Vaayu ₹11,999 (up to 1000m³), Aangan ₹25,999 (8,000–10,000 sq ft), Meenar ₹38,500 (12,000–18,000 sq ft). The Hotel Collection scents are SOSA's own interpretations; SOSA is not affiliated with or endorsed by any hotel brand. Prices subject to change — see the live product pages.