Founder Diaries · How Many Sukoons
By Sonal Sahani · ISIPCA Versailles6 min readUpdated August 2026
This is not really a question about size — it is a question about what you want your home to smell like. One large waterless machine gives one signature everywhere; several small diffusers give each room its own character. Both are right; they are right for different homes.
Quick answer
One large machine? Choose it for one signature everywhere, no humidity, one refill and app scheduling — the waterless SOSA Vaayu.
Multiple small? Choose several Sukoons for a different scent per room, lower entry cost, and a build-as-you-go wardrobe.
Humid coast, long runs? Lean to the waterless machine — no added moisture.
The short version
Short answer: One large machine = one signature, low upkeep, no humidity. Multiple small = per-room scents, lower entry cost, flexible.
When people ask me whether to buy "one big diffuser or lots of small ones," they usually think it is a question about power. It is not. A more powerful machine in the hallway will not scent your bedroom any better than a modest one — mist does not travel through walls. The real fork in the road is this: do you want the whole home to smell of one thing, or do you want each room to feel like itself? Answer that, and the hardware follows.
Side by side
One large waterless machine vs several room diffusers
| What matters |
One large (Vaayu) |
Multiple (Sukoons) |
| The scent effect |
One signature across the whole space |
A different identity in each room |
| Humidity |
None — waterless nebulising |
Each adds mild humidity to its room |
| Upkeep |
One unit, one refill, app-scheduled |
Several tanks to fill and switch on |
| Entry cost |
Higher up front (₹11,999) |
Low to start (₹1,799 + ₹299), build over time |
| Best for |
Large / open-plan / humid coast / hands-off |
Separate rooms / a fragrance wardrobe / budget |
The case for one large machine
One signature, whole home SOSA Vaayu ₹11,999 Waterless nebulising up to ~1000 m³, no added humidity, under 38 dB, and Bluetooth app scheduling. One machine, one scent, the whole floor — the hotel-lobby effect at home. See SOSA Vaayu
If you want your home to greet you and your guests with the same quiet, consistent note — the way a good hotel does — one large machine is the honest answer. The waterless Vaayu covers a large open-plan space from a single unit, adds no humidity — which is the deciding factor in a Mumbai or Chennai monsoon — and runs on a schedule so you never think about it. One refill instead of five tanks. The trade-off is that everywhere smells the same, and the up-front cost is higher.
The case for multiple room diffusers
A scent per room Sukoon ₹1,799 A 500ml ultrasonic for each room, each running its own ₹299 Hotel Collection fragrance. Fresh where you work, calm where you sleep — and you can start with one and add more. Shop Sukoon
If the appeal for you is variety — a bright, fresh note in the living room, something soft and calm in the bedroom, a lobby-style scent for hosting — then several Sukoons are the better buy. The entry cost is low, you can build one room at a time, and a handful of ₹299 Hotel Collection fragrances gives you a true wardrobe. If one device ever falters, the others carry on. The trade-off is the upkeep — several tanks to fill — and the mild humidity each one adds, which you must respect in a coastal home by running them in sessions rather than all day.
The SOSA principle
Buy the result you want to smell, not the bigger box.
One signature everywhere is a machine. A different mood in every room is a wardrobe. There is no wrong answer — only the one that matches how you want to live in your home.
For most Indian homes, the honest middle path is a blend: Sukoons in the private bedrooms where personal scent matters, and one waterless machine for the large shared floor where one signature reads as luxury. If your home sits between the two — a single large open room rather than many closed ones — a big-tank ultrasonic like the Megh (6 L) is a middle option, though it still adds humidity and won't schedule itself.
Frequently asked
Is one large diffuser better than multiple room diffusers?
Neither is universally better — they solve different problems. One large waterless machine like the
SOSA Vaayu gives you a single signature across a big space, adds no humidity, needs one refill and can be scheduled through an app. Multiple
Sukoons give each room its own fragrance identity, cost less to start, and let you build up over time. Choose the big machine for one consistent scent everywhere; choose several small ones for per-room character.
When is one large waterless diffuser the better choice?
When you want the whole home to carry one signature, when the space is large or open-plan, when you live in a humid coastal city and do not want to add moisture, or when you would rather not refill and manage several tanks. The waterless SOSA Vaayu covers up to around 1000 cubic metres, adds no humidity and schedules itself, which suits large homes and hands-off owners.
When are multiple smaller diffusers better?
When you want a different scent in different rooms — a fresh note where you work, something calm where you sleep — and when you prefer a lower entry cost you can build on. Several Sukoons at 1,799 rupees each, run in short sessions with different Hotel Collection fragrances, give you a genuine fragrance wardrobe and let you start with one room and add more.
Which is cheaper, one big diffuser or several small ones?
Several small diffusers have a much lower entry cost — a Sukoon is 1,799 rupees and a fragrance 299 — so you can start with one room. A large waterless Vaayu is 11,999 rupees up front but covers a whole floor from one unit and uses one refill. For two or three rooms, multiple Sukoons are usually cheaper; for a large home you would otherwise fill with many devices, the single machine can work out simpler and comparable.
Do many small diffusers add too much humidity?
Each ultrasonic diffuser adds mild humidity to its room, so running several at once adds moisture across the home. In dry-season Pune or Delhi that is fine, but through a humid coastal monsoon it is not ideal. A single waterless machine adds no humidity at all, which is one of the main reasons large or coastal homes choose it over many ultrasonic units.
Choose your approach
One signature everywhere, or a scent for every room.
For one consistent note across a large or open-plan home, the waterless SOSA Vaayu is the tidy answer. For per-room character on a lower budget, build up with Sukoons and Hotel Collection fragrances, one room at a time.
See SOSA Vaayu · ₹11,999 Shop Sukoon · ₹1,799
Keep reading · How many Sukoons
Size the number of diffusers to your home
About this guide
Written by Sonal Sahani, founder of SOSA Home & Body and a perfumer trained at ISIPCA, Versailles. The SOSA Hotel Collection are our own interpretations inspired by the world's finest hotels — SOSA is independent and not affiliated with or endorsed by any hotel brand. A portion of every order funds girl-child education through Nanhi Kali. Prices and availability are subject to change.
