How Does Air Conditioning Affect Large-Space Scenting?

How Does Air Conditioning Affect Large-Space Scenting?

 

★ ★ A split unit is a jet; central AC is a delivery network — and the difference decides the machineSOSA Vaayu ₹11,999 · wall or HVAC mount · Sukoon ₹1,899 · free shipping above ₹499A portion funds girl-child education
★ SOSA Vaayu · air conditioning
Air conditioning does not weaken fragrance so much as decide where it goes — and ducted air decides very differently from a split
★ ★ ★ ★ ★
★★★★★
"Four split units, one long living-dining, and a diffuser sitting under one of them. Once I understood that the unit was a jet and not a circulator, the placement made sense."
Sanjay M. Hyderabad
Villa owner · split ACs
★★★★★
"Our ground floor is on ducted air. Mounting the machine into the return path rather than standing it on a sideboard changed the whole floor, not just the room."
Devika A. Bengaluru
Vaayu · ducted ground floor
★★★★★
"I kept losing the scent whenever the compressor cycled off. Scheduling the machine around the hours the AC actually runs was the fix, and it cost nothing."
Arvind J. Chennai
Vaayu timers
★★★★★
"Ultrasonic in an AC room in July was making the space feel damp. The waterless one does not do that, which for a Konkan house matters more than I expected."
Nisha P. Ratnagiri
Moved from ultrasonic to cold-air
★★★★★
"Useful to be told plainly that our flat has splits, not ducts, so the HVAC mount was irrelevant to us and a freestanding unit near the return was the answer."
Rahul B. Noida
Villa owner · placement advice
★★★★★
"Asked SOSA about refill supply before buying because the article told me to. Straight answer, no sales pitch. That is rare."
Tanvi G. Pune
Vaayu ₹11,999
★★★★★
"Four split units, one long living-dining, and a diffuser sitting under one of them. Once I understood that the unit was a jet and not a circulator, the placement made sense."
Sanjay M. Hyderabad
Villa owner · split ACs
★★★★★
"Our ground floor is on ducted air. Mounting the machine into the return path rather than standing it on a sideboard changed the whole floor, not just the room."
Devika A. Bengaluru
Vaayu · ducted ground floor
★★★★★
"I kept losing the scent whenever the compressor cycled off. Scheduling the machine around the hours the AC actually runs was the fix, and it cost nothing."
Arvind J. Chennai
Vaayu timers
★★★★★
"Ultrasonic in an AC room in July was making the space feel damp. The waterless one does not do that, which for a Konkan house matters more than I expected."
Nisha P. Ratnagiri
Moved from ultrasonic to cold-air
★★★★★
"Useful to be told plainly that our flat has splits, not ducts, so the HVAC mount was irrelevant to us and a freestanding unit near the return was the answer."
Rahul B. Noida
Villa owner · placement advice
★★★★★
"Asked SOSA about refill supply before buying because the article told me to. Straight answer, no sales pitch. That is rare."
Tanvi G. Pune
Vaayu ₹11,999
SOSA Vaayu waterless cold-air scent diffuserVaayu ₹11,999 SOSA Sukoon ultrasonic diffuserSukoon ₹1,899 SOSA Megh 6L ultrasonic diffuserMegh ₹3,499 SOSA Evening Calm reed diffuserCalm ₹799 SOSA Mountain Breeze reed diffuserMountain ₹849
★ ★ Freestanding, wall or HVAC mounted ₹11,999 For a single air-conditioned room ₹1,899
✓ Vaayu · waterless · no water added to an air-conditioned room · under 38 dB · 5W ✓ 1h / 4h / 8h / 24h timers · app and onboard control · key-lock · auto-stop ✓ 400ml in the box · no separate Vaayu refill sold today — confirm with SOSA before buying

 

Founder Diaries · Large-Space Scenting · Air Conditioning
By Sonal Sahani · ISIPCA Versailles 9 min read Updated August 2026
Almost every large Indian home is air-conditioned, and almost every question I get about scenting one starts from the wrong premise — that the AC is weakening the fragrance. It usually is not. It is deciding where the fragrance goes, and it decides very differently depending on which kind of system you have. A split unit is a jet aimed at one part of one room. Ducted air is a closed loop that touches every room on the circuit. A machine mounted into the second behaves nothing like the same machine standing under the first, and that single distinction explains more failed large-space scenting than any product specification.
Quick answers — read this first
Split AC: a high-velocity local jet that recirculates the air of one room. It strips a reed diffuser placed in front of it and shreds an ultrasonic plume. It distributes almost nothing beyond its own room.

Central or ducted AC: a supply-and-return loop. Fragrance introduced into that loop travels wherever the air travels, which is why the Vaayu offers a wall / HVAC mount as well as freestanding use.

The cycling problem: a fixed-speed compressor stops moving air when it reaches setpoint. Fragrance distribution stops with it. Timers matter for this reason.

The monsoon note: cold-air nebulisation adds no water to a room. An ultrasonic does, which in an air-conditioned coastal house is a real difference.
The short answer
Short answer: air conditioning affects scenting mainly through air movement, not temperature. A split unit moves a large volume of air fast within one room and moves essentially nothing between rooms — so it is a hazard to any passive source in its path and no help at all to the rest of the floor. A ducted or central system is the opposite: it is a whole-home distribution network, and a scent source placed in it or near its return path is carried everywhere the air is carried.
The mechanism: ducted air leaves through supply grilles, crosses the rooms and comes back through returns, and it does this continuously while the fan runs. A cold-air nebuliser injecting a dry nano-mist into that stream is using infrastructure that already exists. A diffuser standing on a sideboard under a split unit is not in any network — it is in a small, fast, closed eddy.
Shop: the SOSA Vaayu at ₹11,999 runs freestanding, wall-mounted or HVAC-mounted, covers up to 1000m³, and offers 1h / 4h / 8h / 24h timers with adjustable intensity and a key-lock, on 5W and under 38 dB. For one air-conditioned room, the Sukoon at ₹1,899 covers 270–320 sq ft. Free shipping above ₹499.
In this guide
Wall or HVAC mount
Vaayu cold-air · ₹11,999
One AC room
Sukoon 500ml · ₹1,899
Keep it off the jet
Reed diffusers · from ₹749
Straight answer
How should I scent a large air-conditioned home?
1. Establish which system you actually have. Wall-mounted split units in each room, cassettes in a false ceiling, a ducted or VRF system with supply grilles and a return, or window units. These behave so differently that no single placement rule covers them, and most advice online silently assumes American central air.

2. If you have splits, stop treating the AC as a distributor. It is not one. It circulates the air of its own room at speed and does very little for the floor. Keep passive sources several feet out of the jet, and place any machine where the room's general traffic will carry the output, not in front of the unit.

3. If you have ducted air, you own a delivery network — use it. This is where a cold-air machine changes character entirely. The Vaayu is designed to be freestanding, wall-mounted or HVAC-mounted precisely so it can put a dry nano-mist into that stream rather than into one corner of one room.

4. Mind the compressor cycle. A fixed-speed system stops the fan when it reaches setpoint, and distribution stops with it. Many systems have a fan-only or circulate mode; if yours does, that is the setting that keeps scent moving between cooling cycles.

5. Schedule rather than run continuously. The Vaayu's 1h / 4h / 8h / 24h timers exist for this. Match the run to the hours the air is actually moving and the hours people are actually in the space.

6. Prefer waterless in an air-conditioned coastal house. An ultrasonic works by putting water vapour into the room and the fragrance rides on it. A cold-air nebuliser adds no water at all. In Mumbai, Goa or Kochi in August, that is not a marginal distinction.

7. Ventilate before you scent, always. Fragrance is an addition to a room, not a correction to it. Nothing on this page cleans air, removes anything, or does any job an extractor and an open window should be doing first.

The Vaayu is made in India, ships with 400ml of fragrance across four Hotel Collection scents, and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: splits are jets — keep sources out of them and expect no help between rooms. Ducted air is a network — an HVAC-mounted cold-air machine uses it and covers a whole floor. Watch the compressor cycle, schedule to it, and prefer waterless where the house is already humid.
SOSA Vaayu waterless cold-air scent diffuser with wall and HVAC mount
The machine that can join the duct loop
SOSA Vaayu · freestanding, wall or HVAC mount ₹11,999
165 × 80.5 × 215 mm and 0.9 kg, so it stands on a shelf, lays flat, mounts to a wall or mounts to HVAC. Pressurised air atomises undiluted oil into a dry nano-mist — no water into an already-humid room, no heat, no residue. Up to 1000m³. 400ml tank, 90+ days a fill. Bluetooth app plus onboard buttons, 1h / 4h / 8h / 24h timers, adjustable intensity, auto-stop and key-lock so nobody else changes your settings. Under 38 dB, DC 12V / 1A at 5W, black or white, CE / RoHS / SGS. Installation specifics for a particular HVAC system are worth confirming with SOSA rather than assuming.
See the Vaayu →

Part one — jets, loops and cycles

There are three separate things an air-conditioning system does to a fragrance, and they are worth separating because a homeowner can control two of them without spending anything. The system moves air at a certain velocity in a certain pattern; it either does or does not connect one room to another; and it starts and stops on a thermostat rather than on your schedule. Most large-space scenting failures in air-conditioned Indian homes come from assuming the first two are better than they are, and forgetting the third entirely.

1
THE JET · SPLIT AND WINDOW UNITS
High velocity, one room, no network at all
A wall-mounted split unit takes in air near the ceiling, cools it and throws it out along a narrow, fast path — typically across the upper third of the room and down the far wall. That is a good way to cool a room and a poor way to distribute anything else. Everything in the jet is over-ventilated and everything outside it is in a comparatively slow eddy. A reed diffuser on a console in that path evaporates far faster than the composition was dosed for, which empties a 50ml well inside its 6–8 week rating while the room still reads quiet. An ultrasonic plume placed there is torn apart before it reaches head height. Crucially, none of this air leaves the room. A split unit in your living room contributes nothing to your hallway, your dining area or your bedrooms, so any hope that "the AC will carry it around the house" is misplaced from the start.
The rule for splits: keep passive sources several feet clear of the unit's throw, and never expect the unit to do distribution work for you.
2
THE LOOP · DUCTED, VRF AND CENTRAL SYSTEMS
Supply, return, and a whole floor on one circuit
SOSA Vaayu cold-air nebulising diffuserVaayu₹11,999 · up to 1000m³A ducted system is a genuine circulation loop: conditioned air goes out through supply grilles into every room on the circuit, crosses those rooms, and comes back through one or more returns to be conditioned again. While the fan runs, the whole floor's air is being continuously stirred and exchanged between rooms. Introduce a dry nano-mist into that loop and you are not scenting a room — you are scenting a circuit. This is the reason the Vaayu lists a wall / HVAC mount alongside freestanding use, and it is the single biggest behavioural difference between this machine and any diffuser you can stand on a sideboard. If you cannot mount into the duct, the next best position is near a return, where the air is on its way back into the system and will take the mist with it. What I will not do is walk you through cutting into your own ductwork: whether a given system can take a mount, and who should do it, is a question for SOSA and your HVAC contractor, not for a blog post.
The rule for ducts: mount into the loop if you can, and stand near a return if you cannot. Both beat the prettiest spot in the room.
3
THE CYCLE · WHAT THE THERMOSTAT DOES TO YOU
When the compressor stops, distribution stops
This is the variable nobody accounts for. A fixed-speed system reaches setpoint, shuts down, and — depending on the unit — often stops moving air altogether until the room drifts warm again. An inverter unit is gentler about it, throttling down rather than switching off, which is better for scenting as well as for comfort. Either way, the hours your air is actually in motion are fewer than the hours your AC is "on", and any format that depends on the room to distribute is idle during the gaps. Two practical responses. First, if your system has a fan-only or continuous-circulate setting, use it — that keeps the loop turning between cooling cycles at very little cost. Second, schedule the fragrance rather than running it flat out: the Vaayu's 1h / 4h / 8h / 24h timers and adjustable intensity exist so you can put the output where the occupancy and the airflow overlap. And the running cost of the machine itself is trivial by arithmetic — 5W for eight hours is 40 watt-hours, which is 0.04 units a day and roughly 1.2 units a month. Tariffs differ by state and I am not quoting anyone's bill; the point is only that the electricity is not the expensive part of this decision.

Part two — every AC setup, and the honest recommendation for it

Find your setup in the first column. The recommendation in the fourth is what I would actually say to a friend with that system and a large open floor to scent, and the fifth column is the mistake I see most often with it.

AC systems and scenting
What each system does with the air, and what to do about it
Your AC setup How the air actually moves Does it link rooms? What I would do Common mistake
Ducted / VRF with returns ★ Continuous supply-and-return loop across the floor Yes — the whole circuit Vaayu HVAC-mounted, or freestanding near a return Placing it in the middle of the room for looks
Ceiling cassettes, no ducting between rooms Four-way throw within each room, fast at the edges No One machine per connected volume, out of the direct throw Assuming a cassette circulates the floor
Wall-mounted splits, one per room Narrow high-velocity jet, recirculating one room No Machine in the traffic path; reeds several feet off the jet Standing the diffuser under the unit
Window units Short, turbulent throw close to the wall No Same as splits; keep passive sources on the opposite wall Putting the bottle on the sill beside it
Splits plus ceiling fans Jet plus a slow whole-room stir — the best of the non-ducted options Partially, through open doorways Fans on lowest, machine in the doorway traffic path Switching the fans off to "protect" the scent
No AC, fans and open windows Movement plus continuous air exchange Yes, but it also removes Close up for the hour that matters, then run Running fragrance into a cross-breeze
The honest caveat: the great majority of Indian homes, including large ones, are on splits or cassettes rather than ducted air — which means the HVAC-mount advantage described here is simply unavailable to most readers. That does not make the Vaayu the wrong machine for those homes; it means the reason to buy it is its own propulsion and volume rating, not the duct trick. Be clear which argument you are buying on.
Shop this guide
Matched to how your air actually moves
SOSA Vaayu cold-air scent diffuserVaayu · ducted or open-plan₹11,999Shop → SOSA Sukoon ultrasonic diffuserSukoon · one AC room₹1,899Shop → SOSA Evening Calm reed diffuserEvening Calm · bedrooms, off the jetfrom ₹799Shop →
The SOSA principle
A split unit cools a room. A duct moves a house. Only one of them can carry a fragrance.
Which system you own is a bigger variable in large-space scenting than which machine you buy — and unlike the machine, you cannot change it after the fact.

Part three — the Indian reality, and when I would tell you not to buy

I want to be careful here, because the HVAC-mount argument is genuinely persuasive and genuinely irrelevant to most of the people it persuades. The great majority of large Indian homes — including four-bedroom flats and a great many villas — run on individual splits or ceiling cassettes. There is no shared duct, no return path, no loop to join. If that is your house, mounting into HVAC is not an option you have, and buying a machine for that capability is buying something you cannot use. The Vaayu may still be right for you, but for a different reason: it produces its own velocity and it is rated for a connected volume of up to 1000m³, which no passive source and no ultrasonic approaches. Buy it on that argument, place it in the traffic path between the doorway and the seating, run the ceiling fans on low, and you will get what you paid for.

There is a second reason air conditioning changes the format choice, and it has nothing to do with distribution. An ultrasonic machine works by putting water vapour into the room; the fragrance rides on it. In a sealed, air-conditioned flat on the Konkan coast in August, adding water to the air is a decision with consequences, and running a 6L tank for a hundred hours is quite a lot of water. This is where the Megh at ₹3,499 gets misread constantly, so let me state it as plainly as I can: the Megh is a runtime and humidity machine covering roughly 215 sq ft — less than the ₹1,899 Sukoon. Its 6 litres buy you about a hundred hours of unattended running, not a bigger room. Nobody should buy it to solve an air-conditioned villa. Cold-air nebulisation, by contrast, adds no water at all, which is why I recommend it for humid climates on physical grounds rather than as any sort of wellness argument — and while we are on that, a scent machine does not clean air, filter anything, or remove any smell. It adds fragrance. Ventilation is a separate job done by separate equipment.

Finally, the thing to settle before you spend ₹11,999, whatever your ductwork looks like. SOSA does not currently sell a separate refill oil for the Vaayu. The machine ships with 400ml — four Hotel Collection cold-air fragrances at 100ml each, in one of three combos you choose at checkout — and that is the entire supply available today. At 90+ days a fill it is a long run, but it is a finite one, and I would rather you know now. The water-based Hotel Collection at ₹299 / ₹999 / ₹1,799 is a different product built for ultrasonic machines; it shares scent names with the cold-air oils and it does not go in a Vaayu. If continuity of supply matters to you — and for anyone running a signature scent across a large home, it should — ask SOSA where refills stand before you commit. The same goes for warranty length, installation service and whether your particular HVAC setup can take a mount: those are questions for SOSA, and I will not invent answers to them here.

Buy the machine for the argument that applies to your house. A duct mount is worth nothing in a flat full of splits.
— Sonal Sahani, SOSA

Part four — the AC-aware edit

Arranged as a decision sequence. The first three are free and are worth doing whatever you eventually buy; the rest are in ascending order of commitment.

The AC-aware edit
From free adjustments to a change of category
Step Why it matters with air conditioning Best for Price
1. Identify jets, returns and dead corners ★ You cannot place a source correctly until you know which you have Every home Free
2. Move passive sources out of the throw Stops a 50ml finishing well inside its 6–8 week rating Reed diffusers Free
3. Use fan-only or circulate mode Keeps the air moving between compressor cycles Ducted and inverter systems Free
4. Reed diffusers in bedrooms off the jet No electricity, no water, nothing to schedule Closed rooms up to about 150 sq ft From ₹749 · 6–8 weeks
5. One Sukoon per air-conditioned room On-demand scent with timers; 16–18 hrs on low 270–320 sq ft rooms ₹1,899
6. Vaayu freestanding, splits house Own propulsion; up to 1000m³ regardless of ductwork Large open floors on split ACs ₹11,999
7. Vaayu HVAC-mounted, ducted house Puts the mist into an existing whole-floor loop Ducted / VRF systems — confirm the fit with SOSA ₹11,999
Not an AC answer: the Megh ~215 sq ft — less than the Sukoon. Runtime and humidity, never coverage Long unattended running in one room ₹3,499
Honest notes for buyers: the Vaayu's 1000m³ figure is a manufacturer specification and describes a volume, so the 2,000–3,000 sq ft translation depends on ceiling height; real reach varies with intensity, run hours, ventilation and AC behaviour. The electricity arithmetic on this page is arithmetic on the 5W rating, not a measured bill, and tariffs vary by state. SOSA does not currently sell a separate Vaayu refill oil — the 400ml in the box is the supply available today; confirm current availability with SOSA before purchasing. The water-based Hotel Collection is for ultrasonic machines and must not be used in a Vaayu; reed oil goes in neither. Whether a particular HVAC system can take a mount, along with warranty, AMC and installation terms, is a question for SOSA. No claim is made that scenting cleans, filters or removes anything. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
SOSA Megh 6 litre ultrasonic cool mist diffuser
The one that gets misread
SOSA Megh · 6L ultrasonic ₹3,499
Six litres and about a hundred hours of runtime, which sounds like the obvious answer for a big air-conditioned house and is not. The Megh is rated at roughly 215 sq ft — less coverage than the ₹1,899 Sukoon. What the tank buys is unattended running time and a good deal of moisture in the air, which is why I would think twice about it in a sealed coastal flat in monsoon. Buy it if you want a machine you top up once a week in one room. Do not buy it to reach further.
See the Megh →
SS
ISIPCA
Versailles
A note from Sonal

The first time I saw a scenting machine mounted into ductwork was in a hotel lobby, and what struck me was not the machine but how little of it there was. One small unit, out of sight, and a whole floor that smelled deliberate. Nothing on a console. Nothing on a reception desk. The building was doing the work, and the machine was only supplying the material. That is the mental model I would like more homeowners to have before they spend on this category.

The trouble is that the model only transfers if your house has the same plumbing, and most Indian houses do not. We are a split-unit country, for good reasons of cost and retrofitting, and a split unit is a cooling appliance rather than a circulation system. So when someone writes to me from a four-bedroom flat in Gurugram asking whether an HVAC mount will scent the whole place, the honest answer is that there is no HVAC to mount into — and that they should decide on the machine's own merits instead.

What I try to avoid is letting a true statement about one kind of building become a sales argument in another. The Vaayu is a serious piece of equipment and ₹11,999 is a serious amount of money in India. It earns its place in a large connected volume because it makes its own velocity and its mist is dry. If it also happens to join your duct loop, that is a genuine bonus. If it does not, nothing is lost — but you should know which of those two you are buying. And do ask us about refills first. Everything we make is composed in Pune, and a part of every order funds a girl's classroom through Nanhi Kali.

Frequently asked questions

Does air conditioning make fragrance disappear faster?
It changes where the fragrance goes more than how quickly it leaves. A split unit's jet dramatically raises evaporation from anything in its path — which is why a reed diffuser placed under one empties early and still leaves the room quiet — while doing nothing to carry scent to other rooms. A ducted system moves fragrance around the whole circuit while its fan runs.
Can I mount a scent diffuser into my home's HVAC?
The Vaayu is specified for freestanding, wall or HVAC mounting, so the machine supports it. Whether your particular ducted or VRF system is suitable, and who should carry out the work, is something to confirm with SOSA and your HVAC contractor — I would not want anyone cutting into their own ductwork on the strength of a blog post.
Where should I put a diffuser in a room with a split AC?
Not under the unit and not in its throw. Put it in the room's traffic path — near the doorway or the walkway people actually use — at roughly waist to chest height, several feet clear of the jet and out of direct sun. For a machine with its own propulsion, the traffic path also gives you the best distribution, especially with ceiling fans running on their lowest speed.
Is a waterless diffuser better than an ultrasonic in an air-conditioned house?
For a large air-conditioned space in a humid climate, yes, on physical grounds: cold-air nebulisation carries undiluted oil in a dry mist and adds no water to the room, while an ultrasonic works by adding water vapour. That is a difference in what lands in your room, not a health claim. In a single normal room, an ultrasonic such as the Sukoon at ₹1,899 remains the sensible buy.
How much electricity does a cold-air scent machine use?
The Vaayu is rated DC 12V / 1A, which is 5W. As arithmetic: eight hours a day is 40 watt-hours, about 0.04 units daily and roughly 1.2 units a month. Tariffs vary by state and this is not a quoted bill — it is arithmetic on the rated figure — but the electricity is clearly not the meaningful cost in this decision.
Large-space scenting · air conditioning
Find out whether you own a jet or a network — then choose the machine
The SOSA Vaayu at ₹11,999 runs freestanding, wall-mounted or HVAC-mounted, nebulises undiluted oil into a dry cold-air mist with no water added to the room, covers up to 1000m³, and offers 1h / 4h / 8h / 24h timers, adjustable intensity, auto-stop and key-lock at under 38 dB on 5W. It ships with 400ml across four Hotel Collection fragrances; no separate Vaayu refill is sold at the time of writing, so ask SOSA before you commit. Free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
See the Vaayu → Sukoon ₹1,899
Continue the read
More on open-plan and large-volume scenting
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, on how different air-conditioning systems change fragrance distribution in large spaces. Placement and airflow guidance is SOSA's working experience from in-house testing and customer correspondence, not laboratory measurement, and behaviour varies with system type, fan mode, ceiling height, ventilation and season. Electricity figures are arithmetic on the rated 5W draw, not measured consumption; tariffs vary by state. No health, air-purification or odour-removal claim is made or implied.

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.
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