The rule behind them: one bottle per door you shut, plus one for the open living zone. Nothing in the passage, the landing or the balcony.
The ceiling: 4 bottles in a 1BHK, 6 in a 2BHK, 7 in a 3BHK, 8 in a 4BHK. Past that, a home stops smelling of a fragrance and starts smelling of fragrance.
2. A standard 1BHK — three bottles, ₹2,847. Garden Bloom 130ml ₹1,299 for the living-dining zone, plus Evening Calm 50ml ₹799 for the bedroom, plus Morning Freshness 50ml ₹749 for the bathroom. 1,299 + 799 + 749 = 2,847.
3. A 2BHK — four bottles, ₹3,696. The three above, plus a Mountain Breeze 50ml ₹849 for the second bedroom. 2,847 + 849 = 3,696.
4. A 3BHK — five bottles, ₹4,445. The four above, plus a second Morning Freshness 50ml ₹749 for the second bathroom. 3,696 + 749 = 4,445.
5. A 4BHK or larger home — six bottles, ₹5,244. Garden Bloom 130ml ₹1,299 (public zone) + Evening Calm 50ml ₹799 (master) + Mountain Breeze 50ml ₹849 (bedroom two) + Garden Bloom 50ml ₹799 (bedroom three) + Morning Freshness 50ml ₹749 × 2 (both bathrooms). 1,299 + 799 + 849 + 799 + 749 + 749 = 5,244.
Alcohol-free, IFRA-compliant, composed by an ISIPCA Versailles-trained perfumer and handmade in small batches in Pune — and every purchase funds a girl's education through Nanhi Kali.
The three rules behind every number above
Rule one: one bottle per door you shut, plus one for the open zone. A shut door is an absolute barrier — the oil evaporates off the reed ends and travels nowhere past it. Count the doors in your home that close, add one for whichever zone stays open, and that is your bottle count before you have chosen a single scent. The full working for a 2BHK is here.
Rule two: a room earns a bottle only if somebody sleeps or sits in it for an hour at a stretch. A study nobody uses, a guest room that hosts twice a year, a dining nook folded into the living zone — none of these get their own bottle because they have a name on the floor plan. Occupancy decides, not the architect.
Rule three: the passage, the landing and the balcony get nothing. Transit air moves too fast to hold a scent and outdoor air holds none at all. A bottle placed there is not thrifty, it is wasted — put the money into the room at either end of it instead.
The three-step method for your own home
Garden Bloom 130ml₹1,299Start at the front door and walk the flat, counting every door that shuts on a room you use: bedrooms, bathrooms, a closed kitchen if you have one. Add one for the open living-dining zone. A studio has one door (the bathroom) and one open zone — two. A standard 1BHK has two doors (bedroom, bathroom) and one open zone — three. A 3BHK typically has four doors (two bedrooms, two bathrooms) and one open zone — five. This single walk-through, done honestly, gives you the correct bottle count for your home before you have opened the catalogue.The matrix, home by home
This is the same staircase as the direct answer above, laid out so you can see each home size build on the last. Nothing already bought is rebought moving up a size — every kit is the previous kit plus exactly one more bottle, for exactly one more room.
| Home | Bottles | What's in the kit | Total | Ceiling |
|---|---|---|---|---|
| Bathroom only | 1 | Morning Freshness 50ml | ₹749 | starting point |
| Studio / small 1BHK ★ | 2 | Day & Night duo — Morning Freshness + Evening Calm, 2 × 50ml | ₹1,498 | 4 |
| 1BHK ★ | 3 | + Garden Bloom 130ml for the living-dining zone | ₹2,847 | 4 |
| 2BHK ★ | 4 | + Mountain Breeze 50ml for the second bedroom | ₹3,696 | 6 |
| 3BHK ★ | 5 | + a second Morning Freshness 50ml for the second bathroom | ₹4,445 | 7 |
| 4BHK ★ | 6 | + Garden Bloom 50ml for the third bedroom | ₹5,244 | 8 |
| Note: the studio row swaps a single duo purchase for the same two rooms rather than two separate bottles; every row above it is simply the row below plus one bottle. A closed kitchen or a genuinely occupied fourth bedroom moves any of these totals — see the cost section below for the exact figures. | ||||
Garden Bloom · the living zone130ml ₹1,299Shop →
Evening Calm · the bedroom50ml ₹799Shop →
Morning Freshness · the bathroom50ml ₹749Shop →
Buying it over months, not all at once
Every kit above can be bought as one order or as five separate ones, and the second route costs nothing extra if you buy in the right sequence: bathroom, master bedroom, living-dining zone, second bedroom, second bathroom. This is the same order the doctrine gives for a single reason — the bathroom is the smallest, most enclosed, most visited room in any home, and a ₹749 bottle there produces the most noticeable change per rupee of anything on this page. Everything after it is a widening circle outward from where you already stand.
Worked for a 3BHK: ₹749 (bathroom, Morning Freshness) → + ₹799 (master bedroom, Evening Calm) = ₹1,548 → + ₹1,299 (living-dining, Garden Bloom 130ml) = ₹2,847 — the full 1BHK number, reached halfway through a 3BHK's shopping list → + ₹849 (second bedroom, Mountain Breeze) = ₹3,696 — the full 2BHK number → + ₹749 (second bathroom, Morning Freshness again) = ₹4,445 — the full 3BHK kit, five bottles, spread over as many pay cycles as you like.
The same sequence scales down and up without changing shape. A 2BHK stops after the fourth purchase; a 4BHK simply keeps going through a third bedroom bottle for ₹5,244. Stop at any point along the way and what you have is still a complete, sensible setup for the rooms you have covered so far — there is no "half-finished" state in this method, only "not yet extended."
What it costs, kitchen included
A 500ml refill costs ₹3,499 — ₹7/ml, or roughly ten 50ml fills at about ₹350 each — against ₹749 for a brand-new bottle. From the third bottle a household refills onward, the refill is the obvious purchase over buying new: the glass is made to be topped up, not thrown away, and the saving compounds every time you do it. The table below adds the one variable none of the totals above include — a closed kitchen, the single most common addition to any kit on this page.
| Setup | What you add | Covers | Total |
|---|---|---|---|
| 1BHK + closed kitchen | The 3-bottle kit (₹2,847) + Morning Freshness 130ml ₹1,249 | Every room in the flat | ₹4,096 |
| 2BHK + closed kitchen | The 4-bottle kit (₹3,696) + Morning Freshness 130ml ₹1,249 | Every room in the flat | ₹4,945 |
| 3BHK + closed kitchen | The 5-bottle kit (₹4,445) + Morning Freshness 130ml ₹1,249 | Every room in the flat | ₹5,694 |
| 4BHK + closed kitchen | The 6-bottle kit (₹5,244) + Morning Freshness 130ml ₹1,249 | Every room in the flat | ₹6,493 |
| Running cost | A 300ml refill ₹2,399, or 500ml ₹3,499 (₹7/ml) | 500ml is ten 50ml fills — roughly ₹350 a fill | from ₹2,399 |
Versailles
This question arrives more than any other, and it almost always arrives in square feet: my flat is 1,400 sq ft, how many diffusers do I need? The honest answer has nothing to do with the 1,400. It has to do with how many doors in that flat close, and how many of the rooms behind them you actually sit still in for an hour.
Once you count doors instead of feet, every number on this page falls out on its own, and the ceiling stops feeling arbitrary — it is simply the point at which a home has more scents competing at its doorways than it has distinct places worth marking. I would rather a reader stop at five bottles for a genuinely large home than reach eight because eight was available.
And if the whole kit is not this month's budget, buy the bathroom bottle and stop there for now. It is the cheapest decision on this page and the one most people regret not making first. Every purchase funds a girl's education through Nanhi Kali — not a percentage, not a quarterly cheque. Every one.
Frequently asked questions
- Which two SOSA reed diffusers for bedroom and living room? — the smallest complete pair, worked in full.
- Which three SOSA reed diffusers for bedroom, bathroom and foyer? — the next step up, room by room.
- Which four reed diffuser fragrances for a 2BHK? — the exact scents behind the ₹3,696 kit.
- Which five reed diffuser fragrances for a 3BHK? — the exact scents behind the ₹4,445 kit.
- Brand: the SOSA founder story.
SOSA reed diffusers & prices (verified August 2026): Morning Freshness (Malabar lemon · peppermint · eucalyptus) 50ml ₹749 · 130ml ₹1,249 · Evening Calm (lavender · chamomile) 50ml ₹799 · 130ml ₹1,299 · Garden Bloom (British rose · night-blooming jasmine) 50ml ₹799 · 130ml ₹1,299 · Fresh Brew (Coorg coffee · Kerala vanilla) 50ml ₹849 · 130ml ₹1,349 · Mountain Breeze (Himalayan pine · sage · cedar) 50ml ₹849 · 130ml ₹1,349. Duo sets: Day & Night 2 × 50ml ₹1,498 · 2 × 130ml ₹2,498; Fresh & Grounded 2 × 50ml ₹1,548 · 2 × 130ml ₹2,548; Warmth & Bloom 2 × 50ml ₹1,598 · 2 × 130ml ₹2,598. Refills 300ml ₹2,399 · 500ml ₹3,499. Six fibre reeds included with every bottle; refillable glass. 50ml suits rooms up to 150 sq ft and lasts 6–8 weeks; 130ml suits rooms above 150 sq ft and lasts 14–18 weeks. Fractionated coconut oil (CCT) carrier, alcohol-free, phthalate-free, paraben-free, IFRA-compliant, low VOC; tested through 45°C heat and 85% monsoon humidity. Composed and handmade in small batches in Pune. Ultrasonic machines quoted for comparison: Boond ₹899 · Sukoon ₹1,899 · Megh ₹3,499, which run the separate water-based Hotel Collection fragrances (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799) — the two lines are not interchangeable. Every purchase funds a girl's education through Nanhi Kali. Prices and availability subject to change — see the live product pages.




