Should I Use Different Home Fragrances in Delhi Summer and Winter?

Should I Use Different Home Fragrances in Delhi Summer and Winter?

 

★ ★ Yes — for two separate reasons that are almost always mixed up: how heavy a scent reads, and how fast the bottle emptiesReed diffusers 50ml from ₹749 · 130ml from ₹1,249 · duo sets from ₹1,498 · oil refill 300ml ₹2,399 · free shipping above ₹499A portion funds girl-child education
★ SOSA Reed Diffusers · the two-bottle Delhi year
Temperature changes two things at once — the weight you perceive and the rate the oil leaves — and only one of them is a reason to change the scent
★ ★ ★ ★ ★
★★★★★
"Nobody had ever separated the two things for me. I had been changing scent because the bottle ran out fast, which turns out to be the wrong reason entirely."
Ira D. Lajpat Nagar
Understood the two effects
★★★★★
"Morning Freshness from March, Fresh Brew from November. Two bottles a year, ₹1,249 and ₹1,349, and I stopped fiddling with anything in between."
Rohan K. Raj Nagar Extension
The two-bottle year
★★★★★
"Fresh Brew in May was a mistake I only understood after reading this. Same bottle in December is lovely. The composition did not change, the room did."
Namrata S. Safdarjung Enclave
Right scent, wrong season
★★★★★
"Winter bottles last noticeably longer in my flat, so the January purchase carries further than the May one. Useful thing to know before budgeting."
Aditya P. Sector 82 Gurgaon
Mountain Breeze 130ml ₹1,349
★★★★★
"I assumed a summer scent had to be citrus. Mountain Breeze is dry rather than bright and works just as well — it is the sweetness that reads heavy, not the warmth."
Bhavna J. Preet Vihar
Dry instead of bright
★★★★★
"Kept one bottle going all year for two years and always disliked it for a few months. Two bottles was obvious once someone explained why."
Sanjay M. Punjabi Bagh
Switched to seasonal
★★★★★
"Nobody had ever separated the two things for me. I had been changing scent because the bottle ran out fast, which turns out to be the wrong reason entirely."
Ira D. Lajpat Nagar
Understood the two effects
★★★★★
"Morning Freshness from March, Fresh Brew from November. Two bottles a year, ₹1,249 and ₹1,349, and I stopped fiddling with anything in between."
Rohan K. Raj Nagar Extension
The two-bottle year
★★★★★
"Fresh Brew in May was a mistake I only understood after reading this. Same bottle in December is lovely. The composition did not change, the room did."
Namrata S. Safdarjung Enclave
Right scent, wrong season
★★★★★
"Winter bottles last noticeably longer in my flat, so the January purchase carries further than the May one. Useful thing to know before budgeting."
Aditya P. Sector 82 Gurgaon
Mountain Breeze 130ml ₹1,349
★★★★★
"I assumed a summer scent had to be citrus. Mountain Breeze is dry rather than bright and works just as well — it is the sweetness that reads heavy, not the warmth."
Bhavna J. Preet Vihar
Dry instead of bright
★★★★★
"Kept one bottle going all year for two years and always disliked it for a few months. Two bottles was obvious once someone explained why."
Sanjay M. Punjabi Bagh
Switched to seasonal
SOSA Morning Freshness reed diffuser for a Delhi summerMorning Freshness ₹749 SOSA Fresh Brew coffee and vanilla reed diffuser for a Delhi winterFresh Brew ₹849 SOSA Mountain Breeze reed diffuser, dry pine and cedarMountain Breeze ₹849 SOSA Garden Bloom rose and jasmine reed diffuserGarden Bloom ₹799 SOSA reed diffuser oil-only refill bottleOil refill 300ml ₹2,399
★ ★ The summer bottle, 130ml ₹1,249 The winter bottle, 130ml ₹1,349
✓ Perceived weight and evaporation rate are two different effects of temperature ✓ Two 130ml bottles a year: ₹1,249 + ₹1,349 = ₹2,598, arithmetic shown ✓ Free shipping above ₹499 · a portion of every order funds girl-child education

 

Founder Diaries · Delhi NCR · Two Seasons, Two Bottles
By Sonal Sahani · ISIPCA Versailles 9 min read Updated August 2026
Yes — and the reason people give for it is usually only half the reason, which is why the advice you have read on this elsewhere probably felt vague. Temperature does two entirely separate things to a reed diffuser, and almost every article about seasonal fragrance runs them together. The first is perceptual: the same composition reads heavier in a warm room than in a cold one, so a scent that is comforting in January can feel thick in May. The second is physical: warmth raises the evaporation rate, so the same bottle empties sooner in summer and later in winter. Only the first is a reason to change the scent. The second is a reason to change the size, or the month you re-order, and nothing else. Keep them apart and the whole question becomes simple: two bottles, one bright or dry for the hot half of a Delhi year, one warm for the cold half, ₹1,249 + ₹1,349 = ₹2,598 in 130ml.
Quick answers — read this first
Yes, change the scent — because warmth changes how heavy it reads. Sweet and warm compositions gain weight in a hot room; bright and dry ones hold their shape. That is a perception effect and it is a genuine reason to run two bottles a year.

No, do not change the scent because the bottle emptied fast. That is the second, separate effect — warm air takes oil off the reeds faster, so a summer bottle finishes sooner. All five compositions run to the same 6–8 and 14–18 week ranges. Change the size, not the scent.

The Delhi pair I would buy: Morning Freshness 130ml ₹1,249 for the hot months, Fresh Brew 130ml ₹1,349 from about November. ₹1,249 + ₹1,349 = ₹2,598.

Cheaper version: the same two in 50ml — ₹749 + ₹849 = ₹1,598 — which gives 6–8 weeks each rather than a season each.
The short answer
Short answer: yes, two bottles a year. Buy Morning Freshness 130ml at ₹1,249 for the hot half — Malabar lemon, peppermint and Nilgiri eucalyptus, bright and dry — and Fresh Brew 130ml at ₹1,349 for the cold half, Coorg coffee over Kerala vanilla. ₹1,249 + ₹1,349 = ₹2,598 for the year, six reeds in whichever is standing. If you want no sweetness at all in the winter bottle, Mountain Breeze is also ₹1,349 and works in both halves.
The mechanism, in two parts: perception — warm air carries a fragrance's heavier base materials more readily, so the same composition reads fuller and sweeter in a hot room and tighter in a cold one. Evaporation — vapour pressure rises with temperature, so more oil leaves the reeds per hour in summer and the bottle finishes sooner. The first changes what you should buy. The second changes when you will need to buy it again. They are not the same effect and they do not have the same answer.
Shop: Morning Freshness ₹749 · ₹1,249 · Fresh Brew ₹849 · ₹1,349 · Mountain Breeze ₹849 · ₹1,349 · oil refill 300ml ₹2,399. Free shipping above ₹499.
In this guide
The hot half — bright, dry, nothing sweet in the base
Morning Freshness 130ml · ₹1,249
The cold half — the composition winter was made for
Fresh Brew 130ml · ₹1,349
The one bottle that behaves in both halves
Mountain Breeze 130ml · ₹1,349
Straight answer
Should the fragrance in a Delhi flat change between summer and winter?
1. Yes, but for one of the two reasons only. Temperature changes how heavy a composition reads, and it changes how fast the oil leaves the reeds. The first is a scent decision. The second is a size and timing decision. Nearly all the confusion around seasonal fragrance comes from treating them as one thing.

2. The perception effect. Warm air carries a fragrance's heavier, sweeter materials more freely, so the same bottle reads fuller in May than in December. Fresh Brew — Coorg coffee over Kerala vanilla, 9.5 on SOSA's own internal scale at six reeds — is the clearest example: excellent in a cold Delhi living room, and noticeably thick in the same room in peak summer.

3. The evaporation effect. Vapour pressure rises with temperature, so more oil leaves per hour in a hot room. A 50ml rated 6–8 weeks lands at the short end in summer and the long end in winter. This tells you nothing about which scent to buy. All five compositions run to the same published ranges.

4. So: change the scent for reason two, and the size or the calendar for reason three. If your summer bottle keeps running out, buy 130ml rather than switching to something you like less. If your winter bottle feels thin, that is not evaporation — it is a composition that needed the heat to open.

5. The pair I would buy for an NCR flat. Morning Freshness 130ml ₹1,249 for the hot months and Fresh Brew 130ml ₹1,349 for the cold — ₹1,249 + ₹1,349 = ₹2,598. There is no duo set pairing those two, so they are bought separately; that is an honest gap rather than an upsell.

6. If you only ever want one bottle, buy the dry one. Mountain Breeze at ₹849 or ₹1,349 is woody without being sweet, and dry compositions change least across a temperature swing. It is the honest single-bottle answer for a Delhi year.

7. Reed count is the seasonal fine-tuning, and it is free. Six reeds in a ventilated summer room; fewer in a shut winter one. That adjustment does more for how a season feels than swapping bottles does, and costs nothing.

Everything is composed and handmade in small batches in Pune, tested through 45°C summer heat and 85% monsoon humidity, and a portion of every order supports girl-child education through Nanhi Kali.
TL;DR: yes — because warmth changes how heavy a scent reads. It also empties the bottle faster, but that is a separate effect with a separate answer, and it is not a reason to change scent. Buy Morning Freshness 130ml ₹1,249 for the hot half and Fresh Brew 130ml ₹1,349 for the cold: ₹2,598 the year.
SOSA Fresh Brew reed diffuser, the winter half of a two-bottle Delhi year
The cold half of the year
SOSA Fresh Brew · Coorg coffee & Kerala vanilla ₹1,349 / 130ml
The most warm-deep composition in the range at 9.5 on SOSA's own internal scale at six reeds — our scale, not an industry standard and not a quality ranking. Everything that makes it too much in a May living room is exactly what makes it right in a December one. A cold room holds a warm composition closer to the reeds, so what reads as thick in the heat reads as depth in the cold; nothing about the oil has changed, only the air it is leaving into. 14–18 weeks at 130ml, and in a Delhi winter it will sit at the long end of that because cool air takes less oil per hour. 50ml is ₹849 if you would rather try one season first. Alcohol-free, phthalate-free and paraben-free on a heat-stable coconut-derived CCT carrier, six fibre reeds, flipped weekly with gloves and stood on a tray.
Shop Fresh Brew 130ml →

Part one — the two effects, kept apart

Everything on this page follows from refusing to let these two run together. One is about what you smell; the other is about what the bottle costs you over a year. They share a cause and share nothing else.

1
EFFECT ONE · PERCEIVED WEIGHT
The same composition reads heavier in a hot room and tighter in a cold one
A fragrance is a structure — lighter materials that leave readily, heavier ones that linger. Warm air lets the heavier, sweeter, resinous parts of that structure move more freely, so a hot room presents you with more of a composition's base than a cold room does. That is why a vanillic or coffee-led scent can feel generous in December and cloying in May, and why a lemon-and-eucalyptus one can feel clean in May and slightly thin in December. Nothing in the bottle has changed. The room has changed what it hands you. This is the one legitimate reason to own two bottles: you are matching the structure to the air it has to work in. Dry woody compositions sit in the middle of this axis and shift least, which is why they are the safest single-bottle choice for a city with a genuinely extreme spread of seasons.
The tell: you still like the scent on a blotter or in a cool room. It is only the flat in summer where it feels like too much.
2
EFFECT TWO · EVAPORATION RATE
Warmth empties the bottle sooner — a calendar problem, not a scent problem
SOSA Morning Freshness reed diffuser 130ml for a Delhi summerMorning Freshness₹1,249 · 130mlA reed diffuser is nothing but evaporation off the exposed length of six fibre reeds, and evaporation runs faster in warmer air. So a 50ml rated 6–8 weeks tends to land at the short end through an NCR summer and the long end through the winter — the same bottle, the same reeds, a different calendar. Here is the trap: this feels like a performance change, so people respond to it by changing scent. It is not a performance change and no composition escapes it. Morning Freshness at ₹749 and Fresh Brew at ₹849 run to identical published ranges; the price difference is what is in the bottle, not how long it lasts. The correct responses to this effect are a 130ml instead of a 50ml, an oil refill on the shelf, and moving the bottle out of direct sun. None of them involves a different fragrance.
The tell: you are happy with how the room smells and unhappy with how quickly the level drops. Different problem, different fix.
3
WHY THEY GET CONFUSED
Both arrive in the same week, and both feel like "the diffuser is behaving differently"
In April a Delhi flat crosses both thresholds at once. The winter bottle starts reading heavier, and it starts emptying faster, and both changes present as a single vague sense that something is off. The person who then buys a lighter scent has fixed the first problem and will meet the second again in six weeks; the person who buys a bigger bottle of the same warm scent has fixed the second and will spend all summer with something that feels thick. Diagnose which one is actually bothering you before ordering. If the answer is both — which it often is in NCR — then the purchase is a bright or dry composition in 130ml, and you have addressed the two effects with one order rather than pretending they were one effect.

Part two — which effect is behind what you noticed

Six seasonal complaints, sorted by which of the two mechanisms is responsible. The last column is the purchase, or the refusal.

Diagnosis · perception or evaporation
What you said, which effect it is, and what actually answers it
What you noticed Which effect Why What answers it
"My winter scent feels sickly now that it is hot" ★ Perception Warm air is presenting more of the composition's sweet base Change the scent. Morning Freshness or Mountain Breeze
"The bottle emptied in five weeks instead of eight" Evaporation More oil leaves the reeds per hour in a hot room Change the size. 130ml, 14–18 weeks. Never a different scent
"My summer citrus feels flat and thin in December" Perception Cold air holds the lighter top materials closer to the reeds Change the scent. A warm composition for the cold half
"The winter bottle is lasting far longer than the summer one" Evaporation Cool air takes less per hour. This is the product working Nothing. Enjoy it and plan the re-order by the liquid line
"It smells strong for three days then settles down" Neither — it is the curve Freshly soaked reeds and departing top notes are always loudest Nothing. The plateau after that is the product
"I cannot smell it at all any more, in either season" Neither — it is your nose Ordinary olfactory adaptation, strongest in your own home Leave and come back, or ask someone arriving. Do not add reeds
The honest caveat: two of these six rows are not seasonal at all, and I have included them because they are routinely blamed on the season. Longevity spans are typical ranges rather than guarantees, and the split between the two effects is qualitative — I am not going to hand you a percentage for how much of what you noticed is perception and how much is evaporation, because no honest figure for that exists. A reed diffuser adds a scent to a room; it does not clean or purify air, remove any existing smell, or change humidity.
Shop this guide
The hot half, the cold half, and the one that does both
SOSA Morning Freshness reed diffuser 130mlMorning Freshness · the hot half, 9.0 bright₹1,249Shop → SOSA Fresh Brew reed diffuser 130mlFresh Brew · the cold half, 9.5 warm-deep₹1,349Shop → SOSA Mountain Breeze reed diffuser 130mlMountain Breeze · dry, and the least seasonal₹1,349Shop →
The SOSA principle
Warmth changes what you smell and how long the bottle lasts. Only the first of those is a reason to buy a different fragrance.
Answer the second with size, placement and a refill — never by abandoning a composition you actually like.

Part three — when changing the scent is the wrong move

There are three situations where a seasonal switch is being asked to solve something it cannot, and all three are worth ruling out before you spend ₹2,598. The first is a room that has simply gone quiet. If the complaint is that you no longer notice your diffuser, changing scent will fix that for a week or two and then you will stop noticing the new one — because what happened was ordinary adaptation to a constant in your own home, and it happens hardest where you live. The reliable checks are leaving the flat for a while and walking back in, or asking someone who has just arrived. Neither costs anything, and both are more informative than a new bottle.

The second is a smell you are trying to sit a fragrance on top of. A reed diffuser adds a scent alongside whatever is already in your air; it removes, neutralises, absorbs and purifies nothing, and SOSA sells no air purifier. If a Delhi winter flat with the windows shut is carrying last night's cooking, or a musty edge that comes back a day after cleaning, no seasonal composition addresses that. The order is: find the source, ventilate or extract, then add fragrance. A musty smell that returns after cleaning is telling you something in the room is still wet, and that is a moisture problem with no fragrance answer at all.

The third is wanting fragrance only at particular hours, which the seasonal question sometimes disguises. A reed diffuser is constant and passive by design — no fan, no heat, no switch — so if your real preference is a warm scent in the evening and nothing during the day, no amount of seasonal swapping delivers it. That is what a Sukoon at ₹1,899 is for: 270–320 sq ft while it runs, 16–18 hours on low, a remote and steady, 2H and 4H timers, with three 15ml Hotel Collection fragrances in the box. It delivers scent by aerosolising water, so it adds moisture to the room; reeds add none, and reduce none. Buy a machine for control, not for strength — and note that reed oil never goes into a machine and the water-based Hotel Collection never goes into a reed bottle.

Change the scent because the season changed what you smell. Change the size because the season changed how fast it goes. Never swap the two answers over.
— Sonal Sahani, SOSA

Part four — the two-bottle Delhi year, costed

Five ways to run a Delhi year, with the arithmetic written out. Every row assumes six reeds and one room.

A year in an NCR flat
What you buy, when, and what the whole year costs
The plan Hot half Cold half The arithmetic for the year
The two-bottle year, 130ml ★ Morning Freshness — 14–18 weeks, at the short end Fresh Brew — 14–18 weeks, at the long end ₹1,249 + ₹1,349 = ₹2,598
The same idea at half the outlay Morning Freshness 50ml — 6–8 weeks Fresh Brew 50ml — 6–8 weeks ₹749 + ₹849 = ₹1,598, but a few weeks each, not a season
You want no sweetness in either half Morning Freshness 130ml Mountain Breeze 130ml — dry, woody, 9.4 ₹1,249 + ₹1,349 = ₹2,598, and no vanilla anywhere
One bottle only, all year Mountain Breeze 130ml — the dry middle of the axis shifts least across a temperature swing ₹1,349, plus a re-order when the level says so
You already own both bottles and want it cheaper next year 300ml oil refill ₹2,399 into your own glass — about ₹7–8 per ml against ₹15–17 ₹2,399 for roughly 8–11 months feeding one bottle
Honest notes for buyers: the two effects described here are qualitative — warmth raises the evaporation rate and changes how a composition reads, and no numerical split between those is offered because none exists. Longevity figures are typical ranges rather than guarantees: 50ml lasts 6–8 weeks and 130ml 14–18 at six reeds, running short in heat and long in cold, shorter still in a draught or in direct sun. All five compositions share those ranges, so a more expensive scent does not last longer. Size buys duration, never reach or strength; reed count is the volume control and costs bottle life roughly in proportion. SOSA has no 100ml reed diffuser — the sizes are 50ml and 130ml — and there is no duo set pairing Morning Freshness with Fresh Brew, so those two are bought separately. Refills are oil only, with no vessel and no reeds, and replacement reeds are not sold separately. Reed oil never goes into an ultrasonic machine and the water-based Hotel Collection never goes into a reed bottle. A reed diffuser adds fragrance to a room; it does not clean, purify or filter air, remove or neutralise any existing smell, or change humidity in either direction. Strength figures are positions on SOSA's own internal scale at six reeds, not an industry standard. Every total shown is arithmetic on listed prices verified from the live store in August 2026, not a quotation. Fragrance oil is flammable — keep bottles out of direct sunlight and away from open flame, children and pets, and stand them on a tray. Made in small batches in Pune; free shipping above ₹499, and a portion of every order supports girl-child education through Nanhi Kali.
SOSA Mountain Breeze reed diffuser, the dry composition that shifts least between seasons
If you would rather own one bottle than two
SOSA Mountain Breeze · Himalayan pine, sage & Indian cedar ₹1,349 / 130ml
Dry woody compositions sit in the middle of the weight axis, with little sweetness in the base for warm air to amplify and enough substance not to thin out in the cold. That is why this is the honest single-bottle answer for a city whose two seasons are as far apart as Delhi's. It will still read a little fuller in May than in January — nothing escapes that — but the swing is small enough that most people never want to change it. 9.4 on SOSA's own internal scale at six reeds, our scale rather than an industry standard. 50ml is ₹849, 130ml ₹1,349 for 14–18 weeks. The honest gaps in this range, while we are being plain: no oud, no musk-led scent and no aquatic.
Shop Mountain Breeze →
SS
ISIPCA
Versailles
A note from Sonal

At Versailles you learn to evaluate a composition on a blotter at a controlled temperature, and then you come home and discover that a north Indian flat in May and the same flat in January are effectively two different testing environments. The same oil, unchanged, presents a different proportion of itself in each. That is not a defect in the formula; it is what a fragrance is.

The reason I insist on separating the two effects is commercial honesty. It would be easy to let a customer whose bottle emptied fast conclude that they need a different scent, because that is a full-price order rather than a refill. But it is untrue — every composition we make runs to the same durations — and a customer who buys a fragrance they like less for a reason that was never real does not come back.

Phthalate solvents push fragrance hard off a reed and win the first week convincingly, then degrade in sustained heat and turn acrid by around week six. We are phthalate-free on a heat-stable coconut-derived CCT base: a smaller opening, a longer flatter plateau, and a bottle that still smells like itself at the end of a Delhi summer. Made in small batches in Pune, and a part of every order funds a girl's classroom through Nanhi Kali.

Frequently asked questions

Do I really need two different fragrances for summer and winter?
You need two if the reason is perception — a warm, sweet composition reading thick in a hot room, or a bright one reading thin in a cold one. You do not need two if the reason is that the bottle emptied quickly, because that is evaporation and every composition behaves the same way. If you would rather own one bottle, buy a dry woody one: Mountain Breeze at ₹849 or ₹1,349 shifts least across the year.
Which SOSA scent is best for a Delhi summer, and which for winter?
Summer: Morning Freshness, Malabar lemon and peppermint over Nilgiri eucalyptus, bright with nothing sweet in the base. Winter: Fresh Brew, Coorg coffee over Kerala vanilla, which needs a cool room to read as depth rather than weight. In 130ml that pair is ₹1,249 + ₹1,349 = ₹2,598 for a year in one room.
Does a reed diffuser really last longer in winter?
Yes. Evaporation is temperature-driven, so cool air takes less oil off the reeds per hour and the same bottle sits at the long end of its range — 14–18 weeks at 130ml, 6–8 at 50ml. In peak summer it sits at the short end, or a little under. Nothing about the composition changes; only the rate does. That is a reason to buy a larger bottle for the hot months, not a different scent.
Can I keep the same scent and just change the number of reeds by season?
Yes, and it costs nothing, which is why I would try it before ordering. Reed count is the only true volume control: run six in a ventilated summer room and fewer in a shut winter one. It will not turn a sweet composition into a dry one — that is the perception effect and only a different bottle answers it — but it does a great deal for how much of anything is in the room. Fewer reeds also stretches the bottle.
Is there a duo set with a summer and a winter scent in it?
Not the pair I recommend here. The duo sets are Day & Night (Morning Freshness + Evening Calm) ₹1,498, Fresh & Grounded (Morning Freshness + Mountain Breeze) ₹1,548 and Warmth & Bloom (Fresh Brew + Garden Bloom) ₹1,598, all 2 × 50ml. There is no set pairing Morning Freshness with Fresh Brew, so for the two-bottle year you buy them separately. Fresh & Grounded is the closest, and both of its bottles are dry rather than sweet.
Delhi NCR · two seasons · 2026
Change the scent for weight, change the size for speed — never the other way round
Morning Freshness 130ml ₹1,249 for the hot half, Fresh Brew 130ml ₹1,349 for the cold: ₹1,249 + ₹1,349 = ₹2,598 for a Delhi year in one room. All five compositions run to the same 6–8 and 14–18 week ranges, so a costlier scent does not last longer. Made in Pune, tested through 45°C heat and 85% humidity. Free shipping above ₹499; a portion of every order supports girl-child education through Nanhi Kali.
Morning Freshness 130ml ₹1,249 → Fresh Brew 130ml ₹1,349
Continue the read
More on Delhi NCR, heat and sealed seasons
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body, distinguishing the perceptual effect of temperature on a fragrance from its effect on evaporation rate. Both are described qualitatively; no numerical split, percentage or study is claimed for either. The situation described is a general one Delhi NCR readers may recognise; it is not drawn from any customer, forum or third-party discussion. No temperature, humidity or air-quality statistic is quoted for any city — the only test conditions stated are SOSA's own, 45°C and 85% relative humidity. Longevity figures are typical ranges rather than guarantees, and all totals are arithmetic on listed prices. No competing product or brand is named, priced or rated.

SOSA range, specifications and prices used in this guide (verified from the live store, 27 August 2026): Reed diffusers — alcohol-free, phthalate-free, paraben-free and IFRA-compliant compositions on a heat-stable coconut-derived (CCT) carrier, low-VOC, in a refillable glass bottle with six fibre reeds; flip weekly. 50ml lasts 6–8 weeks and 130ml lasts 14–18 weeks; there is no 100ml reed diffuser size. Morning Freshness (Malabar lemon · peppermint · Nilgiri eucalyptus) 50ml ₹749 · 130ml ₹1,249; Garden Bloom (British rose · night-blooming jasmine) ₹799 · ₹1,299; Evening Calm (Kashmir lavender · chamomile) ₹799 · ₹1,299; Fresh Brew (Coorg coffee · Kerala vanilla) ₹849 · ₹1,349; Mountain Breeze (Himalayan pine · sage · Indian cedar) ₹849 · ₹1,349. Duo sets ₹1,498–₹1,598 for 2 × 50ml and ₹2,498–₹2,598 for 2 × 130ml. Oil-only refills 300ml ₹2,399 · 500ml ₹3,499 — the glass vessel and reeds are not included, and replacement reeds are not sold as a separate product. Machines: Boond 300ml ₹899 (~150 sq ft, about 6 hours a fill) · Sukoon 500ml ₹1,899 (270–320 sq ft, 16–18 hours on low, three 15ml fragrances included) · Megh 6L ₹3,499 (~215 sq ft — a runtime and humidity machine that covers less than a Sukoon, never a coverage upgrade) · waterless Vaayu ₹11,999 · Safar ₹3,999 (a car and travel product) · Aangan ₹25,999 · Meenar ₹38,500. The water-based Hotel Collection for ultrasonic machines (15ml ₹299 · 100ml ₹999 · 300ml ₹1,799 · pack of seven 15ml ₹1,799) cannot be used in a reed bottle or a Vaayu. Below ₹749: jar candles ₹379, Sandalwood or Smoked Oudh candle ₹449, wax melts ₹474 (a burner is required and not included), mugs ₹474, bubble and taper candles ₹569, Amber Rose candle ₹599, ceramic trinket dish and candle two-pack ₹664. A reed diffuser adds fragrance to a room. It does not clean, purify or filter air, remove or neutralise cooking, damp or smoke smells, reduce humidity, or change how anyone feels. A reed diffuser adds no moisture to the air; ultrasonic machines work by aerosolising water and therefore do. A persistent musty smell indicates moisture that needs finding and drying, and SOSA sells no dehumidifier or air purifier. Ventilate or extract first; add fragrance second. Evaporation rate rises with warmth and falls with humidity, and airflow carries scent away from the bottle — so performance varies with season, ventilation, ceiling height and room use; longevity figures are typical ranges, not guarantees. Not noticing a constant fragrance is ordinary olfactory adaptation; the reliable checks are leaving the room and returning, or asking someone who has just arrived. Strength figures are positions on SOSA’s own internal scale, not an industry standard. Fragrance oil is flammable — keep bottles away from open flame and out of direct sunlight, and out of reach of children and pets. Composed and handmade in small batches in Pune, India; tested through 45°C summer heat and 85% monsoon humidity. 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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