★ SOSA Vaayu · monthly cost
The reed route can be priced to the rupee. The cold-air route can be priced for capital and electricity and not for fragrance, and I will say so rather than invent a number
★ ★ ★ ★ ★
★★★★★
"Three points on refill oil came to about six hundred rupees a month. I had assumed three times that."
2BHK · costed properly
★★★★★
"The duplex arithmetic was the useful bit — five points across two floors, not one machine for both."
3BHK duplex · five points
★★★★★
"Eight reed bottles on refill oil, about two thousand a month, and forty-eight reeds to flip. That is the real trade."
Villa · eight points
★★★★★
"I appreciated being told the Vaayu column could not be completed rather than being given a made-up figure."
Pre-purchase · refill question
★★★★★
"Working in rupees per point per month is the only way I could compare a bottle with a machine."
Guesthouse · budgeting
★★★★★
"The set-up cost and the monthly cost are completely different numbers and nobody separates them. This page did."
Haveli · capital vs monthly
★★★★★
"Three points on refill oil came to about six hundred rupees a month. I had assumed three times that."
2BHK · costed properly
★★★★★
"The duplex arithmetic was the useful bit — five points across two floors, not one machine for both."
3BHK duplex · five points
★★★★★
"Eight reed bottles on refill oil, about two thousand a month, and forty-eight reeds to flip. That is the real trade."
Villa · eight points
★★★★★
"I appreciated being told the Vaayu column could not be completed rather than being given a made-up figure."
Pre-purchase · refill question
★★★★★
"Working in rupees per point per month is the only way I could compare a bottle with a machine."
Guesthouse · budgeting
★★★★★
"The set-up cost and the monthly cost are completely different numbers and nobody separates them. This page did."
Haveli · capital vs monthly
★ ★ The line item that decides your monthly cost ₹2,399 / 300ml The cheapest whole-room machine ₹1,899
✓ Reed oil on a 500ml refill works out at roughly ₹195–₹250 per scented point per month ✓ Vaayu 5W · about 3.6 kWh a month at 24 hrs a day · roughly ₹22–₹36 depending on your state tariff ✓ SOSA does not currently sell a separate Vaayu refill oil — ask before you buy if supply matters
Founder Diaries · Large-Space Scenting · Monthly Cost
Three households: a 1,150 sq ft 2BHK on three points is about ₹585–₹750 a month. A 1,900 sq ft duplex on five points is about ₹975–₹1,250. A 3,200 sq ft villa floor on eight points is about ₹1,560–₹2,000. All on refill oil, all steady-state.
The Vaayu route: ₹11,999 once, plus about ₹22–₹36 a month of electricity at 5W running continuously, plus fragrance — which is free for roughly the first three months from the 400ml in the box and cannot be priced after that, because no separate refill is sold today.
What to do about it: ask SOSA about refill availability, sizes and price before you order. That question is the whole difference between a complete budget and an open one.
Sukoon₹1,899An open living-dining counted properly as two points, an entrance, and one point on each of two upper bedrooms. Set-up: five 130ml bottles, about ₹6,445 once. Steady state on the 500ml refill is ₹975–₹1,250 a month. The variation worth costing here is a Sukoon in the living-dining instead of two bottles: ₹1,899 once, three 15ml scents included, spread over twenty-four months that is about ₹79 a month of machine, plus water-based Hotel Collection at ₹6 per ml in the 300ml size at a dose you set — and the three remaining reed points at ₹585–₹750. At about 510m³ across two floors, a single Vaayu is a poor structural fit whatever the volume figure says, because scent does not climb stairs reliably and each floor is its own problem.
Oil refill · ₹195–₹250 a point a month₹3,499 / 500mlShop → 
Sukoon · 270–320 sq ft on demand₹1,899Shop → 
Vaayu · 400ml in the box₹11,999Shop →
SOSA Vaayu specifications (verified from the live product page, August 2026): ₹11,999 (the product page displays a rounded ₹12,000). Waterless cold-air nebulisation — pressurised air atomises undiluted fragrance oil into a dry nano-mist; no water, no heat, residue-free. Coverage up to 1000m³, about 2,000–3,000 sq ft. 400ml refillable tank, 90+ days per fill at a mid intensity setting. Bluetooth app plus onboard buttons, 1h / 4h / 8h / 24h timers, adjustable mist intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. 165 × 80.5 × 215 mm, 0.9 kg, black or white. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. Ships with four SOSA Hotel Collection fragrances at 100ml each (400ml in total) in one of three combos chosen at checkout. SOSA does not currently sell a separate Vaayu refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, and buyers who need long-term supply should confirm current refill availability with SOSA before purchasing. The cold-air oil supplied with the Vaayu is a different product from the water-based Hotel Collection sold for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799), which must not be used in a Vaayu despite sharing scent names. Other SOSA machines: Boond 300ml ₹899 (~150 sq ft) · Sukoon 500ml ₹1,899 (270–320 sq ft) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine, not a coverage upgrade) · Aangan ₹25,999 (~8,000–10,000 sq ft) · Meenar ₹38,500 (12,000–18,000 sq ft) · Safar car diffuser ₹3,999. Reed diffusers 50ml ₹749–₹849 (6–8 weeks) · 130ml ₹1,249–₹1,349 (14–18 weeks) · duo sets ₹1,498–₹1,598 · oil-only refills 300ml ₹2,399 / 500ml ₹3,499. Runtime, consumption and coverage figures are manufacturer specifications and vary with intensity setting, run hours, ceiling height, ventilation and season; any per-month or per-day figure in this guide is arithmetic on those specifications, not a measurement. Electricity costs vary by state tariff. No claim is made that scenting affects ratings, reviews, bookings, occupancy, revenue, health, mood or air quality. Free shipping above ₹499. A portion of every order supports girl-child education through Nanhi Kali. Prices subject to change — see the live product pages.
One thing has to be said before any arithmetic, because it decides how you read the last column of every table here. The SOSA Vaayu ships with 400ml of cold-air fragrance — four bottles of 100ml — and SOSA does not currently sell a separate Vaayu refill oil. That 400ml is the entire supply available today. The water-based Hotel Collection sold for ultrasonic machines is a different product and does not go in a Vaayu. So the cold-air route in this guide can be costed for its machine and its electricity, and cannot be costed for its fragrance beyond the in-box supply. I would rather show you an incomplete column than a fictional one. Confirm current refill availability with SOSA before buying if long-term supply matters to you.
Quick answers — read this first
The reed route, priced exactly: on the 500ml oil refill at ₹3,499 for 14–18 months per vessel, one scented point costs roughly ₹195–₹250 a month. On fresh 130ml bottles it is ₹305–₹420; on fresh 50ml bottles ₹420–₹610.Three households: a 1,150 sq ft 2BHK on three points is about ₹585–₹750 a month. A 1,900 sq ft duplex on five points is about ₹975–₹1,250. A 3,200 sq ft villa floor on eight points is about ₹1,560–₹2,000. All on refill oil, all steady-state.
The Vaayu route: ₹11,999 once, plus about ₹22–₹36 a month of electricity at 5W running continuously, plus fragrance — which is free for roughly the first three months from the 400ml in the box and cannot be priced after that, because no separate refill is sold today.
What to do about it: ask SOSA about refill availability, sizes and price before you order. That question is the whole difference between a complete budget and an open one.
The short answer
Short answer: whole-home scenting in India costs roughly ₹200–₹250 per scented point per month if you run SOSA reed diffusers on the oil-only refill, which puts a typical large home between ₹600 and ₹2,000 a month depending on how many points you run. Set-up is separate: three to eight 130ml bottles is ₹3,900 to ₹10,400 once, and the vessels and reeds are reused after that.
The mechanism: reed scenting is almost all consumable and almost no capital — you pay every month, forever, in proportion to sources. Cold-air scenting is mostly capital and a trivial amount of electricity: ₹11,999 once, 5W drawing about 3.6 kWh a month at twenty-four hours a day, which is roughly ₹22–₹36 depending on your state tariff. The fragrance line is the one that decides which is cheaper, and for the Vaayu that line is currently open.
In this guide
₹195–₹250 per point per month
500ml oil refill · ₹3,499
Capital instead of consumable
Sukoon ultrasonic · ₹1,899
400ml included · ask about refills
Vaayu cold-air · ₹11,999
Straight answer
What does it actually cost, per month, to keep a whole Indian home scented?
1. Price it per scented point, then multiply. A scented point is one source in one volume of connected air — an open living-dining is two, a closed bedroom is one. On the 500ml oil refill at ₹3,499 lasting 14–18 months in one vessel, that is ₹195–₹250 per point per month. On the 300ml refill at ₹2,399 lasting 8–11 months it is ₹220–₹300.
2. Fresh bottles cost roughly twice as much per month. A 50ml at ₹749–₹849 lasting 6–8 weeks is ₹420–₹610 a month; a 130ml at ₹1,249–₹1,349 lasting 14–18 weeks is ₹305–₹420. The refill exists precisely to close that gap — you reuse your own vessel and reeds.
3. Three real households. A 1,150 sq ft 2BHK with three points: ₹585–₹750 a month, set-up about ₹3,900. A 1,900 sq ft duplex with five points: ₹975–₹1,250 a month, set-up about ₹6,450. A 3,200 sq ft villa floor with eight points: ₹1,560–₹2,000 a month, set-up about ₹10,400.
4. The machine routes are capital first. A Sukoon is ₹1,899 once and three 15ml fragrances are in the box; after that you dose water-based Hotel Collection at ₹6 per ml in the 300ml size, at a dose you choose. A Vaayu is ₹11,999 once with 400ml included.
5. The Vaayu electricity line is genuinely tiny and genuinely computable. 5W for twenty-four hours is 0.12 kWh a day, about 3.6 kWh a month. At household tariffs of roughly ₹6 to ₹10 a unit that is ₹22 to ₹36 a month. On an 8-hour timer it is about a third of that. Tariffs vary by state and slab; this is arithmetic, not a bill.
6. The fragrance line for the Vaayu cannot be completed today. The 400ml in the box is roughly three months at the specified rate. SOSA does not currently sell a separate Vaayu refill oil, so there is no honest number for month four onwards. Ask SOSA what is available, in what size and at what price, before you decide.
Composed and handmade in small batches in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
2. Fresh bottles cost roughly twice as much per month. A 50ml at ₹749–₹849 lasting 6–8 weeks is ₹420–₹610 a month; a 130ml at ₹1,249–₹1,349 lasting 14–18 weeks is ₹305–₹420. The refill exists precisely to close that gap — you reuse your own vessel and reeds.
3. Three real households. A 1,150 sq ft 2BHK with three points: ₹585–₹750 a month, set-up about ₹3,900. A 1,900 sq ft duplex with five points: ₹975–₹1,250 a month, set-up about ₹6,450. A 3,200 sq ft villa floor with eight points: ₹1,560–₹2,000 a month, set-up about ₹10,400.
4. The machine routes are capital first. A Sukoon is ₹1,899 once and three 15ml fragrances are in the box; after that you dose water-based Hotel Collection at ₹6 per ml in the 300ml size, at a dose you choose. A Vaayu is ₹11,999 once with 400ml included.
5. The Vaayu electricity line is genuinely tiny and genuinely computable. 5W for twenty-four hours is 0.12 kWh a day, about 3.6 kWh a month. At household tariffs of roughly ₹6 to ₹10 a unit that is ₹22 to ₹36 a month. On an 8-hour timer it is about a third of that. Tariffs vary by state and slab; this is arithmetic, not a bill.
6. The fragrance line for the Vaayu cannot be completed today. The 400ml in the box is roughly three months at the specified rate. SOSA does not currently sell a separate Vaayu refill oil, so there is no honest number for month four onwards. Ask SOSA what is available, in what size and at what price, before you decide.
Composed and handmade in small batches in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: about ₹200–₹250 per scented point per month on refill oil — ₹585–₹750 for a three-point 2BHK, ₹975–₹1,250 for a five-point duplex, ₹1,560–₹2,000 for an eight-point villa floor, with set-up of ₹3,900–₹10,400 on top once. The Vaayu is ₹11,999 plus ₹22–₹36 a month of electricity, with three months of fragrance in the box and no refill currently sold.
The single line item that halves a monthly bill
SOSA reed diffuser refill · oil only ₹3,499 / 500ml
Every monthly figure on this page assumes you are running refill oil rather than replacing bottles. The 500ml at ₹3,499 keeps one vessel going for roughly 14–18 months at about ₹7 per millilitre; the 300ml at ₹2,399 runs 8–11 months at about ₹8. A fresh 50ml bottle is ₹15–17 per millilitre, so the refill is close to half. You keep your own glass and reeds — replacement reeds are not sold separately, and SOSA guidance is to refresh them every few months. Five scents, the same compositions as the bottles.
Part one — the costing method, and the three households I am using
A monthly scenting cost is two numbers people habitually merge and should not: set-up, which you pay once, and consumable, which you pay forever. Reed diffusers are almost entirely the second — the glass vessel and six fibre reeds are effectively free after the first purchase, and everything you spend from then on is oil. Machines invert that: the box is expensive, the electricity is almost nothing, and the fragrance sits somewhere in between depending on what you can buy. The three households below are ordinary Indian layouts, sized honestly, and every rupee in them comes from a verified SOSA price.
1
HOUSEHOLD A · 1,150 SQ FT
A 2BHK in Pune, three scented points
Living-dining treated as one point because it is a single modest room, one bedroom, one bathroom. Set-up: three 130ml bottles at ₹1,249, ₹1,299 and ₹1,349 — ₹3,897 once, and each lasts 14–18 weeks. Steady state on the 500ml refill, three points at ₹195–₹250 each, comes to ₹585–₹750 a month. On fresh 130ml bottles instead it is ₹915–₹1,260. At about 293m³ of connected volume this home is nowhere near the Vaayu's 1000m³ specification and there is no honest case for one — the machine to consider here, if you want scent on demand rather than constantly, is a Sukoon at ₹1,899.
Verdict: reeds on refill oil. Three points, under ₹750 a month, and nothing to plug in.
2
HOUSEHOLD B · 1,900 SQ FT
A 3BHK duplex in Gurugram, five scented points
Sukoon₹1,899An open living-dining counted properly as two points, an entrance, and one point on each of two upper bedrooms. Set-up: five 130ml bottles, about ₹6,445 once. Steady state on the 500ml refill is ₹975–₹1,250 a month. The variation worth costing here is a Sukoon in the living-dining instead of two bottles: ₹1,899 once, three 15ml scents included, spread over twenty-four months that is about ₹79 a month of machine, plus water-based Hotel Collection at ₹6 per ml in the 300ml size at a dose you set — and the three remaining reed points at ₹585–₹750. At about 510m³ across two floors, a single Vaayu is a poor structural fit whatever the volume figure says, because scent does not climb stairs reliably and each floor is its own problem.
Verdict: reeds plus one ultrasonic where you want control. Roughly ₹700–₹900 a month once the machine is bought.
3
HOUSEHOLD C · 3,200 SQ FT
A single villa floor in Alibaug, eight scented points
Open-plan living, dining and a covered veranda at twelve-foot ceilings — roughly 1,088m³ of connected volume, which is the first household here that genuinely reaches the Vaayu's specification. The reed route: eight points, set-up about ₹10,400, steady state ₹1,560–₹2,000 a month on the 500ml refill — and forty-eight reeds to flip weekly, which is the cost nobody puts in the spreadsheet. The cold-air route: ₹11,999 once, about ₹22–₹36 a month of electricity at 5W running continuously, and 400ml of fragrance in the box covering roughly three months. After that the fragrance line is open, because there is no separate Vaayu refill on sale today. That is the whole comparison, and it is honestly incomplete on one side.
Part two — the three households, side by side
Every rupee below comes from a verified SOSA price. The reed columns are complete. The Vaayu column is complete for machine and electricity and deliberately blank where it cannot be filled.
Whole-home scenting, costed
Three Indian households, set-up and monthly, in rupees
| Household | Connected volume | Points | Reed set-up (once) | Reed monthly on refill oil | Cold-air route |
|---|---|---|---|---|---|
| A · 1,150 sq ft 2BHK, Pune ★ | ≈ 293m³ at 9 ft | 3 | ₹3,897 — three 130ml bottles | ₹585–₹750 | No honest case — far under 1000m³. Consider a Sukoon at ₹1,899 for on-demand scent |
| B · 1,900 sq ft duplex, Gurugram | ≈ 510m³ at 9.5 ft, over two floors | 5 | ₹6,445 — five 130ml bottles | ₹975–₹1,250 | Poor structural fit — two floors are two problems. A Sukoon on the main floor plus reeds costs less and works better |
| C · 3,200 sq ft villa floor, Alibaug | ≈ 1,088m³ at 12 ft, single connected floor | 8 | ₹10,400 — eight 130ml bottles | ₹1,560–₹2,000, plus 48 reeds flipped weekly | ₹11,999 once · ₹22–₹36 a month electricity · 400ml in the box ≈ 3 months · fragrance beyond that not priceable today |
| Same three, on fresh 50ml bottles | — | 3 / 5 / 8 | ₹2,297 / ₹3,995 / ₹6,392 | ₹1,260–₹1,830 / ₹2,100–₹3,050 / ₹3,360–₹4,880 | Not applicable — this row exists to show what skipping the refill costs |
| Same three, on fresh 130ml bottles | — | 3 / 5 / 8 | ₹3,897 / ₹6,445 / ₹10,400 | ₹915–₹1,260 / ₹1,525–₹2,100 / ₹2,440–₹3,360 | Not applicable |
| The honest caveat: the reed figures are exact arithmetic on verified prices and SOSA's stated bottle lifespans — ₹3,499 for 500ml lasting 14–18 months per vessel gives ₹195–₹250 per point per month — but lifespans themselves vary with reed count, airflow, heat and humidity, so read them with a fortnight of tolerance. The cold-air column cannot be completed. SOSA does not currently sell a separate Vaayu refill oil; the machine ships with 400ml, which is roughly three months at the specified rate, and the water-based Hotel Collection for ultrasonic machines is a different product and not a substitute. Confirm current refill availability, sizes and pricing with SOSA before purchasing if long-term supply matters to you. | |||||
Shop this guide
What each of the three households actually buys
Oil refill · ₹195–₹250 a point a month₹3,499 / 500mlShop → Sukoon · 270–320 sq ft on demand₹1,899Shop → Vaayu · 400ml in the box₹11,999Shop →
The SOSA principle
Reeds are all consumable and no capital. A machine is mostly capital and a small consumable.
Which is cheaper depends entirely on how long you keep it and what the consumable costs. One of those two facts is currently unavailable for the Vaayu, and that is why this guide stops where it stops.
Part three — the column that cannot be completed, and what to do about it
A multi-year cost comparison between reeds and a cold-air machine is a straightforward piece of arithmetic with one missing input. On the reed side everything is known: ₹3,499 for 500ml of oil, 14–18 months in one vessel, ₹195–₹250 per point per month, forever, with a fresh set of reeds every few months. Over three years, Household C's eight points come to somewhere between ₹56,000 and ₹72,000 of oil. That number is solid. On the cold-air side, capital is known and trivial to amortise — ₹11,999 is ₹500 a month over twenty-four months, ₹333 over thirty-six, ₹200 over sixty — and electricity is known and negligible. The missing input is the price and availability of cold-air oil after the 400ml in the box runs out, because SOSA does not sell it as a separate product today.
I am not going to estimate it. An invented refill price would produce a three-year total that looks authoritative and is fiction, and a fiction in the direction of the more expensive product is exactly the kind of thing this diary exists not to do. What I can tell you is the shape of the decision. If a Vaayu-compatible refill becomes available at a price broadly comparable to the reed range per millilitre, the machine's running cost for a large connected floor would be lower than eight reed points, because it consumes roughly what four points consume while covering what eight cannot. If it is not available at all, the Vaayu is a machine with three months of fragrance and then a supply problem. Those two outcomes are very far apart, and the only person who can tell you which one you are buying into is SOSA.
So ask, in writing, before you order. Ask whether a Vaayu-compatible cold-air oil can be bought today; in what sizes; at what price per bottle; which of the twelve hotel-inspired scents are available; what the lead time is; and whether the answer changes for someone buying two or three machines. Ask about warranty length and whether servicing or spare parts exist, because none of that is published either and I will not guess at it. If the answers satisfy you, the arithmetic above completes itself and you can make a real comparison. If they do not, the honest move is to wait, and to spend ₹1,899 on a Sukoon or ₹3,499 on refill oil in the meantime — neither of which has any supply question attached to it at all.
An incomplete column is information. A fabricated one is just a nicer-looking way of being wrong.
— Sonal Sahani, SOSA
Part four — the per-point rate card
Everything above reduces to one table. Find the way you buy oil, read across, and multiply by your number of scented points.
The rate card
What one scented point costs a month, by how you buy the oil
| How you buy it | Price | Per millilitre | Months per purchase | Per point, per month |
|---|---|---|---|---|
| 500ml oil refill ★ | ₹3,499 | ≈ ₹7 | 14–18 | ₹195–₹250 |
| 300ml oil refill | ₹2,399 | ≈ ₹8 | 8–11 | ₹220–₹300 |
| Fresh 130ml bottle each cycle | ₹1,249–₹1,349 | ≈ ₹10 | 3.2–4.1 | ₹305–₹420 |
| Fresh 50ml bottle each cycle | ₹749–₹849 | ≈ ₹15–17 | 1.4–1.8 | ₹420–₹610 |
| Sukoon machine, spread over 24 months | ₹1,899 once | — | Capital, not consumable | ≈ ₹79 of machine, plus a fragrance dose you set |
| Vaayu machine, spread over 24 months | ₹11,999 once | — | Capital, not consumable | ≈ ₹500 of machine · ₹22–₹36 electricity · fragrance not priceable beyond the 400ml supplied |
| Water-based Hotel Collection for ultrasonic machines | 15ml ₹299 · 100ml ₹999 · 300ml ₹1,799 | ≈ ₹20 / ₹10 / ₹6 | Depends entirely on your dose | Measure your own — and never put it in a Vaayu |
Honest notes for buyers: per-point monthly figures are arithmetic on verified SOSA prices and stated bottle lifespans, not measurements; lifespans move with reed count, airflow, heat and humidity. Electricity figures are computed from the Vaayu's 5W rating — 0.12 kWh a day at twenty-four hours, about 3.6 kWh a month — at illustrative household tariffs of ₹6 to ₹10 a unit; tariffs vary by state and slab and this is not a quotation of your bill. SOSA does not currently sell a separate Vaayu refill oil; the machine ships with 400ml of cold-air fragrance, roughly three months at the specified rate, and buyers who need long-term supply should confirm availability with SOSA before purchasing. The water-based Hotel Collection is for ultrasonic machines only and must not be used in a Vaayu; reed oil does not go in any machine. Warranty length, annual maintenance contracts, installation service, spare parts and bulk or corporate terms are not published — ask SOSA rather than assuming. Reed refills are oil only; replacement reeds are not sold separately and should be refreshed every few months. Stand reed bottles on a tray and keep all fragrance away from children and pets. Composed and handmade in small batches in Pune, and a portion of every order supports girl-child education through Nanhi Kali.
The middle of the rate card
SOSA Sukoon · 500ml ultrasonic ₹1,899
For Households A and B this is the machine that makes sense: 270–320 sq ft of coverage, sixteen to eighteen hours on low from one water fill, a remote and steady, 2H and 4H timers, and three 15ml Hotel Collection fragrances in the box. Spread over two years it is about ₹79 a month of machine, plus whatever dose of water-based Hotel Collection you choose — ₹6 per millilitre at the 300ml size. It scents on demand, which reeds cannot, and it adds a little humidity, which in a coastal monsoon is a reason to think twice. It is not a coverage substitute for a Vaayu and I would never sell it as one.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The most common message I get about cost is not "this is expensive" — it is "I had no idea it was a monthly thing at all." People buy a reed diffuser the way they buy a candle, as an occasional pleasure, and only notice around month eight that they have bought six of them. Writing the number down once, per point, per month, changes what you buy far more than any discount does.
It usually changes it downward. Someone works out that seven scented points is ₹1,700 a month and immediately realises that three of those points are rooms nobody sits in. That is a better outcome for them and, frankly, a smaller order for me, and I would still rather they got there.
On the Vaayu, the gap in this guide is a real gap in our range, and I am not going to dress it up. The machine ships with 400ml of cold-air fragrance and we do not sell a separate refill for it today. That means I can give you a complete three-year cost for eight reed bottles and I cannot give you one for the machine. If you are the kind of buyer who needs the whole column filled in before spending ₹11,999 — and for a purchase that size you should be — write to us first and ask. Everything is composed and handmade in Pune, and a part of every order funds a girl's classroom through Nanhi Kali.
Frequently asked questions
How much does it cost per month to scent a whole home in India?
Roughly ₹200–₹250 per scented point per month if you run SOSA reed diffusers on the 500ml oil refill at ₹3,499. That puts a three-point 2BHK at about ₹585–₹750, a five-point duplex at ₹975–₹1,250 and an eight-point villa floor at ₹1,560–₹2,000. Set-up is separate and paid once: ₹3,900 to ₹10,400 depending on how many 130ml bottles you start with.
What is the monthly electricity cost of running a SOSA Vaayu?
The Vaayu is rated at 5W. Running twenty-four hours a day that is 0.12 kWh a day, or about 3.6 kWh a month, which at household tariffs of roughly ₹6 to ₹10 a unit works out at ₹22 to ₹36 a month. On an 8-hour timer it is nearer ₹7 to ₹12. Tariffs vary by state and slab — this is arithmetic on the wattage, not a quotation of your bill.
Is a Vaayu cheaper than running eight reed diffusers?
That question cannot be answered completely today. The machine costs ₹11,999 once plus ₹22–₹36 a month of electricity, and arrives with 400ml of fragrance — roughly three months. Because SOSA does not currently sell a separate Vaayu refill oil, there is no honest figure for the fragrance line after that, so the multi-year comparison against eight reed points at ₹1,560–₹2,000 a month cannot be completed. Ask SOSA about refill availability and price before you decide.
Does buying a bigger reed bottle reduce my monthly cost?
A little. A 130ml at ₹1,249–₹1,349 works out at ₹305–₹420 per point per month against ₹420–₹610 for a 50ml, because you pay about ₹10 per millilitre rather than ₹15–17. The real saving is the oil-only refill at ₹7–8 per millilitre, which is close to half the 50ml rate. A bigger bottle buys duration, not reach.
Can I use the Hotel Collection as a cheaper Vaayu refill?
No. The Hotel Collection at 15ml ₹299, 100ml ₹999 and 300ml ₹1,799 is water-based fragrance for ultrasonic machines such as the Sukoon, Boond and Megh. A Vaayu nebulises undiluted cold-air oil and takes neither water-based fragrance nor reed oil. The two share scent names and are not the same product.
Whole-home scenting cost · 2026
Price it per point, per month — and ask the refill question before you spend eleven thousand rupees
Reed diffusers from ₹749 for 50ml and ₹1,249 for 130ml; the oil-only refill is ₹2,399 for 300ml or ₹3,499 for 500ml, which is about ₹195–₹250 per scented point per month. The Sukoon at ₹1,899 covers 270–320 sq ft on demand with three fragrances in the box. The Vaayu at ₹11,999 covers up to 1000m³ and arrives with 400ml of cold-air fragrance; no separate refill is sold today, so confirm availability with SOSA first. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
Refill from ₹2,399 → Sukoon ₹1,899
Continue the read
More on running cost and consumption
- What does it cost to run a cold-air diffuser at home? — two costs, and one of them is tiny.
- How much fragrance does a large home need per month? — the same question in millilitres rather than rupees.
- What is the monthly running cost of the Vaayu? — the electricity computed, and exactly what to ask SOSA.
- The complete running cost and consumption guide — everything on this page and the eight around it, in one place.
- Brand: the SOSA founder story.
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, costing whole-home scenting for three Indian households using only verified SOSA prices. Reed figures are arithmetic on those prices and on SOSA's stated bottle lifespans (50ml 6–8 weeks, 130ml 14–18 weeks, 300ml refill 8–11 months, 500ml refill 14–18 months) and are planning numbers rather than measurements. Electricity figures are computed from the Vaayu's 5W rating at illustrative tariffs of ₹6–₹10 per unit; tariffs vary by state and slab and no bill is being quoted. The cold-air fragrance line is deliberately left incomplete because SOSA does not currently sell a separate Vaayu refill oil. No health, mood, air-purification or odour-removal claim is made anywhere on this page.SOSA Vaayu specifications (verified from the live product page, August 2026): ₹11,999 (the product page displays a rounded ₹12,000). Waterless cold-air nebulisation — pressurised air atomises undiluted fragrance oil into a dry nano-mist; no water, no heat, residue-free. Coverage up to 1000m³, about 2,000–3,000 sq ft. 400ml refillable tank, 90+ days per fill at a mid intensity setting. Bluetooth app plus onboard buttons, 1h / 4h / 8h / 24h timers, adjustable mist intensity, auto-stop and key-lock. Under 38 dB. DC 12V / 1A, 5W. 165 × 80.5 × 215 mm, 0.9 kg, black or white. Freestanding or wall / HVAC mount. CE, RoHS and SGS certified. Ships with four SOSA Hotel Collection fragrances at 100ml each (400ml in total) in one of three combos chosen at checkout. SOSA does not currently sell a separate Vaayu refill oil; the 400ml supplied in the box is the fragrance available at the time of writing, and buyers who need long-term supply should confirm current refill availability with SOSA before purchasing. The cold-air oil supplied with the Vaayu is a different product from the water-based Hotel Collection sold for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799), which must not be used in a Vaayu despite sharing scent names. Other SOSA machines: Boond 300ml ₹899 (~150 sq ft) · Sukoon 500ml ₹1,899 (270–320 sq ft) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine, not a coverage upgrade) · Aangan ₹25,999 (~8,000–10,000 sq ft) · Meenar ₹38,500 (12,000–18,000 sq ft) · Safar car diffuser ₹3,999. Reed diffusers 50ml ₹749–₹849 (6–8 weeks) · 130ml ₹1,249–₹1,349 (14–18 weeks) · duo sets ₹1,498–₹1,598 · oil-only refills 300ml ₹2,399 / 500ml ₹3,499. Runtime, consumption and coverage figures are manufacturer specifications and vary with intensity setting, run hours, ceiling height, ventilation and season; any per-month or per-day figure in this guide is arithmetic on those specifications, not a measurement. Electricity costs vary by state tariff. No claim is made that scenting affects ratings, reviews, bookings, occupancy, revenue, health, mood or air quality. Free shipping above ₹499. A portion of every order supports girl-child education through Nanhi Kali. Prices subject to change — see the live product pages.