How much fragrance across sizes? 3 drops at 100 sq ft, up to 5-6 at 200 - the dose scales gently with size, of any Hotel Collection scent.
Best bedroom scents? White Tea Serenity for clean, restful sleep and Old-World Glamour for a plush master-bedroom evening.
2. Size down only for tiny rooms. A genuinely small ~100 sq ft bedroom or a desk can use a Boond (₹799) and save you a thousand rupees.
3. Scale the dose gently. Three drops at 100 sq ft, four around 150, five to six near 200 - of any Hotel Collection scent.
4. Place it raised and central. The bigger the bedroom, the more this matters: off the floor, roughly central, in the airflow, out of the draught.
5. Step up only for open or lofty rooms. Open-plan, double-height or much over 250 sq ft is a Vaayu (₹11,999) job - a bigger volume, not a bigger dose.
Made in India; a portion of every order supports girl-child education through Nanhi Kali.
The one rule that holds across every bedroom size
Sukoon · the diffuser₹1,799 Here is the liberating truth of buying by bedroom size: from a snug 100 sq ft to a generous 250, the answer is the same single Sukoon. Its ~200-250 sq ft per-room range spans every normal bedroom, so you buy the right tool once and never re-buy as you move or upgrade rooms. What changes across the band is only the dose and the placement - not the machine. That is the whole reason this guide fits on one page.
Hotel Collection scentsFrom ₹299 Fragrance scales with room size, but softly: three drops in a small 100 sq ft bedroom, four around 150, five to six approaching 200. Roughly double the drops for double the floor - never a dramatic jump. Use a composed blend that rewards a light hand: White Tea Serenity for clean rest, Old-World Glamour for a plush evening. Start low, live with it an hour, and let your nose confirm the number.
Vaayu · large room₹11,999 Two honest edges bound the band. Below it, a tiny ~100 sq ft bedroom or a desk can use a Boond (₹799) and save money. Above it - a bedroom that is open-plan, double-height, or much over 250 sq ft - the air volume outgrows one ultrasonic's throw, and the waterless Vaayu (₹11,999, up to 1000m³) is the honest step up. Between those edges, it is always one Sukoon.
How to read your own bedroom in two minutes
Stand in the doorway and take in three things: the floor area, the ceiling, and the doors. If it is a closed room of 100 to 250 sq ft under a normal ~9-10 ft ceiling, stop deciding - one Sukoon is your answer, and the only remaining choice is which of the seven Hotel Collection scents and whether you dose three drops or six.
The doors and ceiling are what change the verdict. A 'bedroom' that opens into a dressing room or study is really a larger connected volume; a double-height or lofted ceiling holds far more air than the floor number implies. In either case the mist has more space to fill than one per-room device is built for, and you either add a second unit on the same scent or step up to the Vaayu. This is not the Sukoon underperforming - it is a per-room tool honestly meeting a bigger-than-one-room job.
The complete bedroom-size buying grid
Find your bedroom's size on the left and read across - the diffuser holds steady while the dose and placement adjust, until the last row where the room stops being a single enclosed box.
| Bedroom size | Diffuser | Drops per tank | Placement note |
|---|---|---|---|
| ~100 sq ft | Boond (₹799) or Sukoon | 3 drops | Bedside table, raised |
| ~120 sq ft | One Sukoon (₹1,799) | 3-4 drops | Raised, central-ish |
| ~150 sq ft | One Sukoon | ~4 drops | Raised, roughly central |
| ~180 sq ft | One Sukoon | 4-5 drops | Central, in the airflow |
| ~200 sq ft | One Sukoon | 5-6 drops | Dead central, raised |
| ~250 sq ft (enclosed) | One Sukoon (top of range) | 6 drops | Central; watch the far corner |
| Open-plan / double-height | Vaayu (₹11,999) | n/a | Volume, not a per-room job |
SOSA Sukoon · the diffuser₹1,799See details →
Hotel Collection · 7 scentsFrom ₹299See details →
Boond 300ml · small rooms₹799See details →
Placement: the free upgrade at every size
Whatever the size, placement is doing quiet, unpaid work. Cool ultrasonic mist sinks and pools if the diffuser sits low, so lift the Sukoon onto a side or bedside table, roughly two to three feet up. Because the throw is strongest within a few feet and fades beyond, a roughly central spot lets every corner sit a similar distance from the machine, so the room reads even rather than strong on one wall and flat on the other.
Then respect the air. You want the room's gentle natural airflow to carry the scent - not a direct draught. Set it directly under an AC or fan and the blast drives the mist into one wall and starves the rest; tuck it behind a wardrobe or curtains and the obstruction traps it before it spreads. Raised, central, in the airflow, out of the draught: those four small decisions together beat any number of extra drops, and they cost nothing.
Get placement right first, then dose. Nine times out of ten, a bedroom that 'smells weak' is not under-dosed - it is a diffuser on the floor, in a corner, or under the AC. Move it before you reach for the bottle, and one Sukoon at the right drops will fragrance the whole room, from a tiny 100 sq ft box to a generous 250.
The 7 Hotel Collection scents
The whole point of the Sukoon is the scent you run through it. The Hotel Collection is seven of SOSA's own interpretations of the signatures great hotels are known for - pick by the room and the mood you want, try a 15ml first, then size up to the one you love. A portion of every order supports girl-child education through Nanhi Kali.
| Scent (inspired by) | Notes | Best for |
|---|---|---|
| Quiet Luxury · Ritz-Carlton style | White tea, bergamot, cedar | Living room & lobby-calm; understated and expensive |
| White Tea Serenity · Westin style | White tea, aloe, cedar | Bedrooms; spa-clean, weightless, restful |
| Forest Suite · 1 Hotels style | Cedarwood, vetiver, green leaves | Home office & study; fresh, focused, woody |
| Old-World Glamour · St. Regis style | Amber, violet, woods | Master bedroom, evenings; plush and romantic |
| Tea Garden · Shangri-La style | Jasmine, green tea, white tea | Guest rooms; serene, Asian-spa calm |
| Warm Welcome · Four Seasons style | Citrus, floral, sandalwood | Entryway & whole home; gracious, five-star |
| Lobby Bar · W Hotels style | Citrus, pepper, amber | Dining & entertaining; bold, after-dark energy |
Versailles
Frequently asked questions
Facts verified August 2026: An ultrasonic diffuser disperses a water-based fragrance as a cool micro-mist, scenting a room without heat or flame and adding a little humidity. Great hotels use commercial HVAC scenting to create a signature smell; at home the same effect comes from a diffuser plus a hotel-inspired blend. SOSA Sukoon is a 500ml ultrasonic cool-mist diffuser with a 7-colour mood light (₹1,799); Boond is a 300ml mini ultrasonic diffuser (₹799); both run the water-based Hotel Collection fragrance. The Hotel Collection comes in seven scents (Ritz-Carlton, Westin, 1 Hotels, St. Regis, Shangri-La, Four Seasons and W Hotels styles) in 15ml (₹299), 100ml (₹999) and 300ml (₹1,799), plus 15ml Pack of 7 (₹1,799); dose 3-6 drops per tank, use SOSA diffuser fragrance only (not raw essential/carrier oils), and rinse between scents. For large, open-plan or high-humidity spaces the waterless SOSA Vaayu (₹11,999, up to 1000m³) adds no humidity; the Aangan (₹25,999) is a whole-home HVAC system. The scents are SOSA's own interpretations; SOSA is independent and not affiliated with any hotel brand. Prices and availability are subject to change - see the live product pages.



