Dose: 5–6 drops in a hard room, 4 in a mixed one, 3 in a textiled one.
Run: a timed session before the room is used. All seven in 15ml for ₹1,799.
2. Set the dose from the materials. Hard living room — stone, tile, glass, minimal textile: 5 to 6 drops. Mixed: 4. Heavily textiled — wool, full-height curtains, deep upholstery: 3. This is physics rather than preference, and it overrides floor area every time.
3. Set the schedule from the hours. Air the room, then run a forty to sixty minute session finishing as the room is used, then stop or drop to the lowest setting. Living rooms are large, ventilated, usually attached to a kitchen and full of people who absorb fragrance — a timed run beats a machine left on.
4. Size the machines by arithmetic. One Sukoon (₹1,899) per 270–320 sq ft of connected space, a Boond (₹899) for anything under 150. More area means more Sukoons. The Megh (₹3,499) covers up to 215 sq ft — less than a Sukoon — and is a runtime machine for one dry room, never a coverage upgrade.
5. Start with the Pack of 7 at ₹1,799. Seven 15ml bottles is cheaper than two wrong 100ml ones, and it lets you test every register against your own light and materials. This is the honest starting point for a whole-home scheme.
Made in India, composed by an ISIPCA Versailles-trained perfumer — and a portion of every order supports girl-child education through Nanhi Kali.
The materials principle, in full
The single idea worth taking from this whole cluster is that materials change how a room holds fragrance, and it is physics rather than taste. Soft, porous surfaces absorb fragrance and re-release it slowly — wool, linen, velvet, cotton, jute, rattan, upholstery, curtains and rugs all take up scent molecules and hand them back over hours, which is why a heavily furnished drawing room still smells faintly of last night. Hard, non-porous surfaces absorb almost nothing — marble, glass, polished concrete, tile, metal and lacquer leave fragrance airborne, so it disperses fast and disappears within an hour of the machine stopping. The consequence is blunt: the same Sukoon at the same three drops produces completely different results in a marble apartment and in a velvet drawing room.
The second idea is congruence, and it is where taste re-enters. A scent should agree with what the room looks like — its warmth, its weight, its loudness — and the evidence is that this congruence matters more than intensity, with effects that are real but moderate. A pale, spare, cool room that smells warm and sweet produces a small mismatch people register without being able to name. But congruence is not always literal matching, and the sharpest example in this series is wood: real timber off-gasses, so a wood-panelled room already smells faintly woody and gains nothing from a woody fragrance — a clean tea note often does more, as the wood guide argues. And the living room raises the stakes on all of it, because it is the only room where the interior and the scent are judged together, by other people, at the moment they walk in.
The three decisions, in order
Hotel CollectionFrom ₹299Cool and pale — modern luxury, contemporary, marble, white — takes The Ritz-Carlton-inspired Quiet Luxury or Westin-inspired White Tea Serenity; there is more in the interior style selector and the white and light guide. Warm neutral, beige and contemporary Indian takes Four Seasons-inspired Warm Welcome. Wood, stone and natural materials take 1 Hotels-inspired Forest Suite, as the earthy guide sets out. Dark, velvet and enclosed rooms are the one palette where The St. Regis-inspired Old-World Glamour genuinely belongs.All seven, by living room type
Every scent in the collection against the living room it belongs in. Five are the common answers; two are narrower and still have a real place. A 15ml at ₹299 in your own room beats any table, including this one.
| Scent | Notes | Character | Best for |
|---|---|---|---|
|
The Ritz-Carlton-inspired ★ Quiet Luxury |
White tea · bergamot · cedar | Polished, cool, expensive-clean | Modern luxury, contemporary, marble and grey living rooms |
|
Westin-inspired White Tea Serenity |
White tea · aloe · cedar | Cool, watery, near-weightless | Minimalist and all-white living rooms — quiet scent, high dose |
|
Four Seasons-inspired Warm Welcome |
Citrus · floral · sandalwood | Gracious, creamy-warm | Beige and warm neutral rooms; contemporary Indian rooms with teak and brass |
|
1 Hotels-inspired Forest Suite |
Cedarwood · vetiver · green leaves | Dry, green, grounded | Wood, stone-and-timber, earthy and white-and-wood living rooms |
|
The St. Regis-inspired Old-World Glamour |
Amber · violet · woods | Plush, powdery, rich | Dark luxury, velvet and leather rooms; evening use, lower dose |
| Not in this family, for reference: Shangri-La-inspired Tea Garden suits a garden-facing or heavily planted room where the greenery leads, and W Hotels-inspired Lobby Bar is the statement-room answer — bold, spiced and strictly after-dark. See all seven. | |||
Pack of 7 · all seven in 15mlFrom ₹299Shop → 
Sukoon · one per living zone₹1,899Shop → 
Boond · the rooms off it₹899Shop →
The dose table, placement, and a caution worth taking seriously
The dose table by material mix, for a living room of roughly 250 to 320 sq ft on a Sukoon. Marble, stone or glass with almost no textile: 6 drops, short repeated runs, nothing held overnight. Hard-surfaced and minimal — tile or concrete floor, tight upholstery, no curtains: 5 drops. Mixed — one large rug, light curtains, a normal sofa: 4 drops. Heavily textiled — wool rug, full-height curtains, deep upholstery: 3 drops, and it will still be faintly present tomorrow. Velvet, leather or a dark enclosed room: 2 to 3 drops, because those materials store fragrance for weeks. Bedrooms and studies come down to 1 to 2 drops on a Boond. Two rooms of identical size can sit three drops apart.
Placement and schedule are the same everywhere in this cluster. Stand the machine about a metre up on a shelf or console with a clear foot around it, out of the direct throw of a fan or air conditioner, and away from the kitchen threshold where extraction simply takes it. Air the room for fifteen minutes first, because fragrance over cooking residue combines rather than covers. Then run forty to sixty minutes finishing as the room is occupied, and stop — continuous running produces nose fatigue, and nose fatigue produces creeping doses.
The caution, which applies to every room in this series: ultrasonic mist is water, and water settles. It leaves spots on marble and honed stone, a bloom on waxed or oiled timber, and it should never be aimed at art, leather or fabric — repeated damp encourages mustiness in upholstery, particularly during a monsoon. Stand every unit on a tray, coaster or stone slab rather than directly on the surface, and wipe around it occasionally. In hard-water cities use filtered water: mineral residue dries as a fine pale dust that is invisible on a beige rug and unmistakable on dark stone.
What to buy
The machine ladder has two rungs and the fragrance decision is the one worth spending time on. The Pack of 7 at ₹1,799 is the honest starting point for a whole home.
| Buy | What it is | Why here | Price |
|---|---|---|---|
| Start here ★ | Pack of 7 — every scent in 15ml | Cheaper than two wrong 100ml bottles, and it settles the whole house | ₹1,799 |
| The shortlist | Three 15ml testers — your top three from the table | When the style question has already narrowed it | 3 × ₹299 = ₹897 |
| Small rooms | Boond 300ml — up to 150 sq ft, USB, night light | Bedrooms, studies and powder rooms at 1–2 drops | ₹899 |
| The living room | Sukoon 500ml — 270–320 sq ft, remote, timers, 3 × 15ml included | One per living zone; two for an L-shaped living-dining | ₹1,899 |
| A whole flat | Two Sukoons plus one Boond | Living, dining and one bedroom, on one scent at three doses | 2 × ₹1,899 + ₹899 = ₹4,697 |
Versailles
A hundred articles is a long time to spend on one argument, and the argument has not changed since the first one. Rooms are chosen material by material over months, and then the air in them is whatever came in through the window or off a supermarket shelf. It is the last undecided surface in a decided room.
If you take one thing from all of this, make it the materials. People dose by the size of the room and they should be dosing by what is in it. A marble living room is spending its fragrance into the air and losing it; a velvet one is banking it and giving it back for weeks. Same square footage, opposite instructions, and no amount of choosing a nicer scent fixes the wrong number of drops.
Then be modest about the rest. Air the room. Choose one scent and keep it long enough for it to become the house. Put the machine on a tray. And buy the seven at ₹1,799 or a single 15ml at ₹299 before you commit to a bottle — your own floor, light and cooking will settle it faster than any of my hundred articles. A portion of every order funds a girl's classroom through Nanhi Kali.
Frequently asked questions
- Which fragrance matches your interior style? — the whole-house selector.
- The complete guide for white and light interiors — the palette that announces cleanliness.
- The complete guide for earthy and natural homes — when the materials already smell.
- The complete guide for marble and stone homes — the hardest surfaces of all.
- Brand: the SOSA founder story.
SOSA products & prices (verified August 2026): Hotel Collection water-based ultrasonic diffuser fragrance 15ml ₹299 · 100ml ₹999 · 300ml ₹1,799 · Pack of 7 (15ml, all fragrances) ₹1,799; refills 100ml 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). Diffusers: Boond 300ml ₹899 · Sukoon 500ml ₹1,899 · Megh 6L ₹3,499. Water-based, phthalate-free, composed to IFRA standards for home diffusion; 3–6 drops per tank. Made in India, Pune. The Hotel Collection scents are SOSA's own interpretations inspired by the world's finest hotels; all hotel names are trademarks of their respective owners and are used only to describe the scent style — SOSA is an independent Indian fragrance house, not affiliated with or endorsed by any hotel brand. Prices and availability subject to change — see the live product pages.