★ Home odour diagnosis · AC rooms
Cleaning stops at the wall. The air conditioner is on the other side of that line
Cleaning covers floors, surfaces and linen. It stops at the front cover of the air conditioner, which is the one thing in the room that processes all of the air.
Start here
A split unit moves the whole room's air across a wet coil many times an hour. Nothing else in a bedroom handles that volume, and nothing else in a bedroom is never cleaned.
Air volume
Filters, the coil fin pack, the blower wheel and the condensate line are the four places routine cleaning has never once touched.
Four blind spots
Dusting the outside of the unit and wiping the louvres changes nothing, because the source sits behind the filter, in the dark and in the wet.
Outside is not inside
An AC recirculates and never ventilates, so a spotless room can still be running on nine-hour-old air at 0.2–0.5 changes an hour.
Cooling is not airing
Once the machine is clean, a reed diffuser from ₹749 gives the bedroom a settled background. Fragrance adds pleasant molecules; it removes nothing.
Reeds ₹749 · Sukoon ₹1,899
Cleaning covers floors, surfaces and linen. It stops at the front cover of the air conditioner, which is the one thing in the room that processes all of the air.
Start here
A split unit moves the whole room's air across a wet coil many times an hour. Nothing else in a bedroom handles that volume, and nothing else in a bedroom is never cleaned.
Air volume
Filters, the coil fin pack, the blower wheel and the condensate line are the four places routine cleaning has never once touched.
Four blind spots
Dusting the outside of the unit and wiping the louvres changes nothing, because the source sits behind the filter, in the dark and in the wet.
Outside is not inside
An AC recirculates and never ventilates, so a spotless room can still be running on nine-hour-old air at 0.2–0.5 changes an hour.
Cooling is not airing
Once the machine is clean, a reed diffuser from ₹749 gives the bedroom a settled background. Fragrance adds pleasant molecules; it removes nothing.
Reeds ₹749 · Sukoon ₹1,899
✓ Diagnosis first — if the cause is damp, drainage or a filter, fragrance is not the fix ✓ Reeds from ₹749 for always-on rooms · Sukoon ₹1,899 when you want a switch ✓ Composed by an ISIPCA Versailles-trained perfumer · phthalate-free
Founder Diaries · Why does my home smell like this?
The four blind spots: the mesh filters, the evaporator coil fin pack, the blower wheel, and the condensate pan and drain line.
Wiping the louvres is not cleaning the AC. The source sits behind the filter, in the dark, in the wet, and needs a tap for the filters and a technician for the rest.
Step fourFrom ₹749Two mesh panels behind the front cover, held in by clips, out in seconds. After a month in an Indian bedroom they carry a felt of dust, hair and fibre — and because they sit directly in front of a dripping coil, that felt is humid rather than dry. Rinse from the clean side outwards so the dust is pushed off rather than driven through, use a soft brush and a little mild soap, rinse again, and dry them completely before they go back in. A damp filter returned to a cold unit is a better home for growth than the dirty one you took out. Monthly through the season, fortnightly on a dusty road.
Reeds · always-on roomsFrom ₹749Shop → 
Sukoon · when you want a switch₹1,899Shop → 
Hotel Collection · the scentFrom ₹299Shop →
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.
Draw the boundary of what gets cleaned in your bedroom and you will find it stops at a very specific place: the plastic cover of the air conditioner. Floors, surfaces, linen, the tops of cupboards, sometimes the curtains — all inside the line. The inside of the unit is outside it, and always has been. Which is unfortunate, because it is the only object in the room that handles all of the room's air, and it does so across a surface that is wet the entire time it runs.
Quick answers — read this first
The mismatch: you clean the surfaces where nothing much happens and never open the one appliance that processes the whole room's air volume many times an hour.The four blind spots: the mesh filters, the evaporator coil fin pack, the blower wheel, and the condensate pan and drain line.
Wiping the louvres is not cleaning the AC. The source sits behind the filter, in the dark, in the wet, and needs a tap for the filters and a technician for the rest.
The short answer
Short answer: Because the room is clean and the machine is not. Routine cleaning covers hard surfaces and textiles; it has never included the inside of the air conditioner. That unit passes the entire room's air over an evaporator coil held below dew point, so the coil is permanently wet while running, and fine dust that gets past the filter grows biofilm on it. The strange smell is that growth being blown at you.
The four things to check: The washable mesh filters — two minutes, a tap and a soft brush. The evaporator coil fins, which need a professional jet clean rather than a spray. The blower wheel behind them, which needs the casing opened. And the condensate drain, which should be running steadily from the outdoor pipe while the unit cools.
Where fragrance fits: After the machine is clean and the room has been aired. A reed diffuser from ₹749 then gives a bedroom a permanent quiet background with nothing to operate. It cannot act on a coil, and no fragrance from any brand can.
In this guide
Always-on
Reed diffusers · from ₹749
On demand
Sukoon 500ml · ₹1,899
The scent
Hotel Collection · from ₹299
Straight answer
My bedroom is cleaned regularly but smells strange with the AC on — what should I check?
1. Check the filters, because they are the only part you can do today. Lift the front cover of the indoor unit and the mesh panels slide straight out. In a bedroom used through an Indian summer, a month puts a grey felt of dust, hair, textile fibre and skin flakes on them. That mat is not sitting somewhere dry — it is directly in front of a coil that is dripping condensation, with the room's air being pulled through it dozens of times an hour. Wash them under a tap with a soft brush, dry them completely, refit. Monthly through the season. It is often the whole answer.
2. Check the coil, and accept that this one is not yours to clean. Behind the filter is a block of aluminium fins packed about two millimetres apart, held below the dew point of your room air so that it dehumidifies as it cools. It is therefore wet for every hour the unit runs. Whatever fine dust the filter missed embeds between those fins and grows. You cannot reach it with a cloth and you cannot reach it with a spray, because the deposit is centimetres deep in the pack. A jet clean before the season is the fix.
3. Check the blower wheel, which is the part nobody knows exists. Behind the coil sits a long barrel-shaped fan with dozens of narrow blades, and it is the thing actually pushing air at your bed. It works the air after it has been chilled, so it sits in the damp part of the casing, and the gaps between its blades fur up with lint. Take the filters out, shine a torch into the housing, and look. Grey furring is obvious once you know to look for it. It goes on the service list.
4. Check the drain, from outside. While the unit is cooling hard, look at the far end of the condensate pipe on the outside wall. Water should be running out steadily. If it is barely dripping, water is standing in the shallow pan under the coil instead of leaving, and standing water a few centimetres from the airflow gives a heavier, flatter smell than coil growth. Also check the wall directly beneath the indoor unit for any damp patch, because that is a different and more urgent problem.
5. And check whether the room is being aired at all, separately from being cleaned. A split AC recirculates. It cools the same air over and over and brings in nothing from outside, so a shut bedroom stays at roughly 0.2–0.5 air changes an hour however immaculate the floor is. Ten minutes with two openings on opposite sides, morning and night, is the other half of what "clean" ought to mean. Once the machine and the air are both dealt with, a reed diffuser or a Sukoon is the layer that gives the room a character.
Made in India, composed by an ISIPCA Versailles-trained perfumer — and a portion of every order supports girl-child education through Nanhi Kali.
2. Check the coil, and accept that this one is not yours to clean. Behind the filter is a block of aluminium fins packed about two millimetres apart, held below the dew point of your room air so that it dehumidifies as it cools. It is therefore wet for every hour the unit runs. Whatever fine dust the filter missed embeds between those fins and grows. You cannot reach it with a cloth and you cannot reach it with a spray, because the deposit is centimetres deep in the pack. A jet clean before the season is the fix.
3. Check the blower wheel, which is the part nobody knows exists. Behind the coil sits a long barrel-shaped fan with dozens of narrow blades, and it is the thing actually pushing air at your bed. It works the air after it has been chilled, so it sits in the damp part of the casing, and the gaps between its blades fur up with lint. Take the filters out, shine a torch into the housing, and look. Grey furring is obvious once you know to look for it. It goes on the service list.
4. Check the drain, from outside. While the unit is cooling hard, look at the far end of the condensate pipe on the outside wall. Water should be running out steadily. If it is barely dripping, water is standing in the shallow pan under the coil instead of leaving, and standing water a few centimetres from the airflow gives a heavier, flatter smell than coil growth. Also check the wall directly beneath the indoor unit for any damp patch, because that is a different and more urgent problem.
5. And check whether the room is being aired at all, separately from being cleaned. A split AC recirculates. It cools the same air over and over and brings in nothing from outside, so a shut bedroom stays at roughly 0.2–0.5 air changes an hour however immaculate the floor is. Ten minutes with two openings on opposite sides, morning and night, is the other half of what "clean" ought to mean. Once the machine and the air are both dealt with, a reed diffuser or a Sukoon is the layer that gives the room a character.
Made in India, composed by an ISIPCA Versailles-trained perfumer — and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: a regularly cleaned bedroom that smells strange with the AC on has a clean room and a dirty machine. Cleaning stops at the front cover; the filters, coil, blower and drain have never been touched. Wash the filters, book a coil and blower clean, check the drain, air the room — then scent it.
After the cause is dealt with
SOSA reed diffusers From ₹749
Once the machine is as clean as the room, a SOSA reed diffuser holds a quiet background with no electricity and nothing to operate — 50ml from ₹749 for 6–8 weeks, 130ml from ₹1,249 for 14–18, six fibre reeds included. Four reeds is right for a cooled bedroom.
Why the boundary of "cleaning" sits exactly where the problem starts
There is a quiet logic to how households decide what counts as cleaning, and it is mostly about what is visible and what has a surface. Floors, tables, the top of the fridge, the bathroom tiles: visible, surfaced, cleanable. The inside of appliances is none of those things, which is why the washing-machine gasket, the fridge drip tray and the air conditioner are the three most reliable sources of household smell in a spotless home. They are dirty in exactly the way that nobody's cleaning routine is designed to notice. The AC is the worst of the three, because unlike the other two it is deliberately blowing its own internal air at your face for eight hours a night.
It is worth being concrete about the volume involved, because it explains why a small amount of growth inside a machine outweighs a large amount of cleanliness in the room. A bedroom split unit moves air continuously while it runs, turning over the room's entire volume many times an hour and drawing every cubic metre of it through the same mesh filter and across the same wet coil. Your floor, by contrast, contributes almost nothing to the air unless something is disturbed. So a deposit occupying a few square centimetres of fin pack has vastly more contact with the air you breathe than the whole surface area of the room does. That is the mismatch, and no amount of mopping addresses it.
The four places routine cleaning has never reached
1
BLIND SPOT ONE · THE FILTERS
The only part you can fix in ten minutes
Step fourFrom ₹749Two mesh panels behind the front cover, held in by clips, out in seconds. After a month in an Indian bedroom they carry a felt of dust, hair and fibre — and because they sit directly in front of a dripping coil, that felt is humid rather than dry. Rinse from the clean side outwards so the dust is pushed off rather than driven through, use a soft brush and a little mild soap, rinse again, and dry them completely before they go back in. A damp filter returned to a cold unit is a better home for growth than the dirty one you took out. Monthly through the season, fortnightly on a dusty road.
The honest test: hold a filter to your nose away from the unit. If it smells like the room does with the AC on, you have found it.
2
BLIND SPOTS TWO AND THREE · COIL AND BLOWER
Behind the filter, and beyond a cloth
The evaporator coil is a fin pack, wet for every hour of cooling, with fine dust embedded between fins two millimetres apart. The blower wheel behind it is a barrel of narrow blades that furs with lint in the damp air downstream of the coil. Neither is reachable by wiping and neither is fixed by a spray, because in both cases the deposit sits well inside a structure you cannot get a cloth into. This is a technician's job with a jet cleaner and the casing opened, ideally once before the hot season starts. Ask for the coil and the blower wheel by name when you book, because a standard service visit in most cities means a filter wash and a gas check and will not include either.
The tell: fan-only clean but cooling smells points at the coil; smelly in fan-only with clean filters points at the blower.
3
BLIND SPOT FOUR · THE CONDENSATE PATH
Water leaving by gravity, or not leaving at all
The water pulled out of your bedroom air has to go somewhere: into a shallow plastic pan under the coil and out through a pipe that leaves through the wall on a slope. There is no trap and no flush, so nothing scours it. Sludge builds, the line narrows, and water begins to stand in the pan instead of draining — a small stagnant reservoir centimetres from the airflow. Check it from outside while the unit is cooling hard: steady running water is right, a reluctant drip is not. And look at the wall directly under the indoor unit, because a damp patch or blistered paint there is a leak rather than an odour, and takes priority over everything else here.
Symptom to cause: a clean room with a dirty machine
Start from what you actually notice rather than from what you have already cleaned. The point of this table is to stop you cleaning the room a fourth time.
The diagnosis table
What you notice, what it usually is, and how to be sure
| What you notice | Most likely cause | How to confirm it | What actually fixes it |
|---|---|---|---|
| Room spotless, smell appears only with the AC running ★ | The inside of the unit — the one thing in the room that has never been cleaned | Slide a filter out and smell it directly, away from the machine | Wash filters monthly; book a coil and blower clean before the season |
| You wiped the louvres and the front cover and nothing changed | The source is behind the filter, not on the outside of the casing | Open the cover and look in with a torch after removing the filters | Filters under a tap; coil and blower by a technician, not by wiping |
| Cleaner comes weekly and the smell is still there | Domestic cleaning does not include appliance interiors, by convention rather than fault | Ask directly whether the AC filters have ever been washed — usually the answer is no | Add the filter wash to the monthly routine and give it to someone specifically |
| Smells worse in humid weeks despite the same cleaning | Higher condensation load keeping coil, pan and drain line wetter for longer | Compare a rainy week with a dry one at the same thermostat setting | Dry mode on humid nights; ten minutes of fan-only before every shutdown |
| Clean, cool and still closed-smelling, even with the unit clean | No air exchange — the AC cools the same air and brings in none | Cross-ventilate for ten minutes, go out for thirty, judge the first breath back | Two openings on opposite sides, ten minutes morning and night |
| Dark speckling behind the headboard or above the unit, earthy note | Mould from condensation on a cold wall — a health issue, not an odour problem | Move the bed away from the external wall and check the plaster behind it with a torch | Find the moisture source, remove the growth, improve the wall. Do not fragrance this. |
| If none of these fit: write down the last date the AC filters were washed. If you cannot, that is your answer, and the fix is a Sunday morning rather than a purchase. | |||
Shop this guide
Where fragrance comes in — once the machine is as clean as the room
Reeds · always-on roomsFrom ₹749Shop → Sukoon · when you want a switch₹1,899Shop → Hotel Collection · the scentFrom ₹299Shop →
The SOSA principle
The one object handling all of the room's air is the one nobody opens.
Floors and surfaces contribute almost nothing to what you breathe. A wet coil behind a loaded filter contributes everything, dozens of times an hour.
A cleaning routine that includes the machine
First, move the boundary of what "cleaning this room" means. Add two items to the routine and give them to a specific person, because unassigned tasks do not happen. Monthly: filters out, rinsed, brushed, dried, refitted. Annually, before the hot season: a service booking that names the evaporator coil jet clean, the blower wheel clean and a condensate line flush. That is the whole change. Everything else about how you already clean the room is fine and is not the problem.
Second, add the drying habit, which costs nothing and prevents most of the recurrence. Run the unit on fan-only for the last ten minutes before you switch it off, so the blower dries the coil rather than leaving it soaked in a warm dark casing until morning. Many units have a dry or self-clean mode that automates exactly this; it is worth ten minutes with the manual to find it. Growth needs water and time — you cannot take away the water while the unit is cooling, but you can take away the eight idle hours, and that is most of it.
Third, air the room, and then give it a character. Cleaning and airing are separate jobs and the AC does neither: cross-ventilate for ten minutes morning and night with two openings on opposite sides. Once the machine is clean, the coil is drying properly and the room is being aired, fragrance finally has a neutral room to sit on. A reed diffuser from ₹749 gives you a permanent quiet background with no electricity — Evening Calm, Kashmir lavender and chamomile, suits a bedroom, and four reeds rather than six is right for a cooled room that flushes nothing out. If you prefer a switch, the Sukoon at ₹1,899 with three drops of a Hotel Collection scent from ₹299 runs before bed and stops.
You cleaned the room. Nobody has ever cleaned the machine that breathes it.
— Sonal Sahani, SOSA
The order that works
Nothing here asks you to clean the room more. It asks you to extend cleaning by two items and to open the windows. The purchase is fourth and it is optional.
The order that works
Extend the cleaning to the machine — then scent
| Step | What to do | When | Cost |
|---|---|---|---|
| 1. Remove the source | Wash the AC filters monthly; book a coil jet clean, blower wheel clean and drain flush before the season | Before anything else | ₹0 |
| 2. Move the air | Cross-ventilate ten minutes morning and night — cleaning is not airing and the AC exchanges no air | Daily, five to ten minutes | ₹0 |
| 3. Deal with what holds it | Ten minutes of fan-only before shutdown; weekly bedding; curtains seasonally; mattress aired in sunlight | Weekly to monthly | ₹0 |
| 4. Then the always-on layer ★ | A SOSA reed diffuser — a quiet permanent background in a room that is now genuinely clean — four reeds, away from the vent | 50ml 6-8 weeks · 130ml 14-18 | from ₹749 |
| 5. Or the on-demand layer | Sukoon with a Hotel Collection scent — scent for an hour before bed with a switch; roughly 270–320 sq ft of coverage | Run it when you want it | ₹1,899 |
Honest notes before you buy: the order above is not padding, it is the whole method. Home fragrance is an additive layer — it puts pleasant molecules into the air, it does not remove unpleasant ones. Scenting over a live odour source gives you both smells at once, which reads worse than the original problem, and it removes the signal that was telling you something needed attention. Three causes in particular are never a fragrance problem: visible or suspected mould, which is a health issue and needs the moisture source found and the growth removed; a drain or sewer smell, which usually means a dry P-trap or a failed seal and is a plumbing job; and a gas-like or burning smell, which should be treated as an emergency, not an odour. Persistent damp in a wall or ceiling is a building fault and needs a professional. Once the room is genuinely clean and dry, SOSA reed diffusers run oil-based fragrance with no electricity, while the Sukoon (₹1,899) runs the water-based Hotel Collection — the two liquids are not interchangeable. Reed fragrance is composed and made in India, in Pune; both are phthalate-free and composed to IFRA standards for home diffusion, not for skin or ingestion. A portion of every order supports girl-child education through Nanhi Kali.
The on-demand layer
SOSA Sukoon · 500ml ₹1,899
Once the room is clean and dry, the Sukoon at ₹1,899 gives you scent with a switch — run it for an hour before people arrive rather than all day. It takes 3-6 drops of the water-based Hotel Collection (from ₹299) and covers roughly 270-320 sq ft. A reed diffuser is the opposite trade: no switch, no effort, always on.
SS
ISIPCA
Versailles
Versailles
A note from Sonal
The people who ask me this question are almost always doing more cleaning than the problem requires, and none of it in the right place. A bedroom floor contributes very little to what you breathe. A wet coil behind a month-old filter contributes almost all of it, because that is the only thing in the room deliberately moving the air. It is not a failure of effort. It is a boundary problem: appliances are simply not inside most people's definition of cleaning.
I would put the filter wash on a monthly reminder and give it to one named person, the way you would with a water filter cartridge. Everything else about the unit is a once-a-year booking, and the words that matter on that booking are coil, blower and drain. If you only say "servicing" you will get a filter wash and a gas check, and you will be back here in three weeks wondering why nothing changed.
When it is all clean, scent the room gently. An air-conditioned bedroom is sealed, so what goes in stays in, and it is cool, so evaporation from reeds is slow and steady. That combination means less product, not more. Four reeds of something quiet, placed away from the airflow. A room should smell of a decision, not of an effort. A portion of every order funds a girl's classroom through Nanhi Kali.
Frequently asked questions
I clean my bedroom regularly but it smells strange with the AC on — what should I check?
The inside of the air conditioner, in this order: the mesh filters, the evaporator coil, the blower wheel and the condensate drain. Routine cleaning covers floors, surfaces and linen and stops at the unit's front cover, yet the unit is the only thing in the room that moves all of the air, across a coil that is wet for every hour it cools. Start by sliding a filter out and smelling it directly.
Does wiping the outside of the AC help at all?
It keeps the casing tidy and it does nothing for the smell. The source sits behind the filter, in the dark and in the wet — embedded in the coil fin pack or furring the blower wheel. Neither is reachable from the front. Wash the filters yourself monthly and book a technician for the coil and blower once a year, before the hot season rather than in the middle of it.
My cleaner comes weekly. Why has the AC never been cleaned?
Because appliance interiors are not part of what domestic cleaning conventionally covers, anywhere. The same blind spot explains the washing-machine door gasket and the fridge drip tray, which are the other two classic sources of smell in a spotless home. Make it explicit: name the AC filter wash as a monthly task and assign it to a specific person rather than assuming it is included.
How often should the filters be washed?
Monthly through the cooling season, and fortnightly if you live on a main road, near construction, or anywhere notably dusty. Rinse from the clean side outwards so dust is pushed off rather than through, use a soft brush and mild soap, and dry the panels completely before refitting — a damp filter put back into a cold unit is a better home for growth than the dirty one you removed.
When can I start using a diffuser in the room?
Once the filters are clean, the coil has been serviced, the drain is running and the room is being aired daily. At that point a reed diffuser from ₹749 gives a bedroom a permanent quiet background with no electricity, or the Sukoon at ₹1,899 with a water-based Hotel Collection scent from ₹299 gives you a switch. Neither removes anything — that is what the first three steps were for.
Once the machine is as clean as the room
Clean what actually moves the air — then give the room a character
SOSA reed diffusers composed and made in Pune, 50ml from ₹749 for 6–8 weeks or 130ml from ₹1,249 for 14–18, six fibre reeds included — four is the right number for a cooled bedroom. Or the Sukoon at ₹1,899 with a Hotel Collection scent from ₹299 when you want a switch. Neither cleans a coil. A portion of every order supports girl-child education through Nanhi Kali.
Shop SOSA reed diffusers → See the Sukoon ₹1,899
Continue the read
More on air-conditioned rooms and smell
- Can a dirty AC filter make a clean bedroom smell bad? — a month of dust becoming a smell.
- Why does my split AC sometimes smell musty? — coil, blower, pan and drain line.
- My house is spotless but does not smell fresh — what cleaning cannot reach anywhere.
- Why does my AC room smell stale in the morning? — a night of recirculation with no fresh air.
- 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. Odour diagnosis here is general building and household guidance, not a substitute for a plumber, an electrician or a damp specialist where one is needed. Fragrance longevity and coverage figures are SOSA's own for the stated products; the underlying principles — sorption into soft materials, air-change rate and olfactory adaptation — are general.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.