★ Founder Diaries · Hotel Fragrance Guides
Warm, woody hotel-inspired scents for your ultrasonic diffuser - composed in India by an ISIPCA Versailles-trained perfumer.
★★★★★
"I bought the Westin-inspired White Tea Serenity because I missed that spa-clean hotel smell. A few drops in my diffuser and the whole bedroom has it. Water-based, no oily residue, and it does not overpower."
Westin-inspired - Hotel Collection
★★★★★
"The Ritz-Carlton-inspired Quiet Luxury is my living-room signature now - white tea and cedar, soft and expensive-smelling. Guests always ask what it is."
Ritz-Carlton-inspired - Hotel Collection
★★★★★
"Started with three 15ml bottles to find my favourite, then sized up to the 300ml of Tea Garden. Jasmine and green tea, very Shangri-La. The bigger bottle is far better value per ml."
Shangri-La-inspired - Hotel Collection
★★★★★
"What sold me was that it is water-based and made for the diffuser - I had clogged my old one with thick essential oils. This mists cleanly. The Four Seasons-inspired citrus-sandalwood is gracious and warm."
Four Seasons-inspired - Hotel Collection
★★★★★
"The St. Regis-inspired amber and violet is my evening scent - plush and old-world. A few drops goes a long way. Composed by a trained perfumer and it shows."
St. Regis-inspired - Hotel Collection
★★★★★
"I run the W Hotels-inspired Lobby Bar when friends are over - citrus, pepper, amber, a bit of buzz. Bought the diffuser and three refills as a set. Ships fast."
W Hotels-inspired - Hotel Collection
★★★★★
"I bought the Westin-inspired White Tea Serenity because I missed that spa-clean hotel smell. A few drops in my diffuser and the whole bedroom has it. Water-based, no oily residue, and it does not overpower."
Westin-inspired - Hotel Collection
★★★★★
"The Ritz-Carlton-inspired Quiet Luxury is my living-room signature now - white tea and cedar, soft and expensive-smelling. Guests always ask what it is."
Ritz-Carlton-inspired - Hotel Collection
★★★★★
"Started with three 15ml bottles to find my favourite, then sized up to the 300ml of Tea Garden. Jasmine and green tea, very Shangri-La. The bigger bottle is far better value per ml."
Shangri-La-inspired - Hotel Collection
★★★★★
"What sold me was that it is water-based and made for the diffuser - I had clogged my old one with thick essential oils. This mists cleanly. The Four Seasons-inspired citrus-sandalwood is gracious and warm."
Four Seasons-inspired - Hotel Collection
★★★★★
"The St. Regis-inspired amber and violet is my evening scent - plush and old-world. A few drops goes a long way. Composed by a trained perfumer and it shows."
St. Regis-inspired - Hotel Collection
★★★★★
"I run the W Hotels-inspired Lobby Bar when friends are over - citrus, pepper, amber, a bit of buzz. Bought the diffuser and three refills as a set. Ships fast."
W Hotels-inspired - Hotel Collection
✓ Ships in 24 hrs from Pune ✓ Water-based, IFRA-standard, phthalate-free ✓ For SOSA ultrasonic diffusers - not reeds, skin or wax burners
Founder Diaries · Hotel Fragrance Guides
How long does 300ml last? Many months of daily use - a few drops per tank goes a long way. It is the size for households and light commercial use.
Is it worth the bigger spend? If you are sure of the scent and use it regularly, yes - the per-ml value is the best in the range. Test with a 15ml first if you are unsure.
Facts verified June 2026: SOSA Hotel Collection is a water-based ultrasonic diffuser fragrance (refill) in 7 hotel-inspired scents - 15ml ₹299, 100ml ₹999, 300ml ₹1799 - composed in India by an ISIPCA Versailles-trained perfumer to fragrance-industry (IFRA) standards, phthalate-free, made to run through SOSA ultrasonic diffusers (Boondh, Sukoon, Phuhaar) and NOT for reed diffusers, waterless nebulisers, skin or wax burners; use SOSA diffuser fragrance only (raw essential/carrier oils can clog the misting plate). These are independent, hotel-inspired fragrance interpretations created by SOSA. SOSA is not affiliated with, endorsed by or associated with the hotels named; all hotel names are trademarks of their respective owners and are used only to describe the scent style.
The 300ml is the value bottle - the one you buy when you have a scent you use every day and want the best price per ml. Here is what the 300ml ultrasonic diffuser fragrance refill gives you, and who it is for.
Quick answers - read this first
What is the 300ml for? It is the value refill (₹1799) - the best price per ml, for a scent you use daily or a large space. Months of your favourite, and ideal for topping up a diffuser you run regularly.How long does 300ml last? Many months of daily use - a few drops per tank goes a long way. It is the size for households and light commercial use.
Is it worth the bigger spend? If you are sure of the scent and use it regularly, yes - the per-ml value is the best in the range. Test with a 15ml first if you are unsure.
The short answer
The value refill. ₹1799 - the best price per ml for a scent you use daily.
Months of your favourite. A few drops per tank; the 300ml lasts and lasts.
Households and light commercial. This is not reed diffuser oil. Water-based, for ultrasonic diffusers.
From ₹1799. The 300ml of any Hotel Collection scent.
In this guide
Illustrative only. Build a wardrobe: clean and serene for mornings and bedrooms, warm and plush for evenings, bold and bright for entertaining.
Straight answer
Should I buy the 300ml ultrasonic diffuser fragrance refill?
The 300ml (₹1799) is the value refill - the best price per ml in the range, for a scent you use daily or a larger space. It gives many months of your favourite and is ideal for topping up a diffuser you run regularly, for a busy household, or for light commercial use like an Airbnb or small clinic. If you are sure of the scent, it is the smartest per-ml buy; if not, test with a 15ml first. These are interpretations of hotel scent styles, not the hotels' actual scents.
In one line: the 300ml (₹1799) is the value refill - best price per ml, months of a scent you use daily. Ideal for busy homes and light commercial use. Test with 15ml first if unsure.
Best value: the 300ml refill at ₹1799 - months of your favourite scent.
Shop the Hotel Collection
What the 300ml is for
The 300ml is the bottle for certainty. You know the scent, you use it every day, and you want the best value per ml without reordering constantly. It is also the natural size for a larger home or for light commercial use, where a diffuser runs more hours.
It is the value end of the range - the reward for knowing what you love.
The 300ml, defined
The 300ml ultrasonic diffuser fragrance refill (₹1799) is the value size - the best price per ml, for daily use or a large space. This is not reed diffuser oil - it is water-based, for ultrasonic and humidifier-style diffusers.
For an Airbnb, small clinic or salon running a diffuser through the day, the 300ml is the economical restock so the scent never lapses.
Let me clear up two things
✕
"Bigger always means better." Only if you are sure of the scent and use it regularly. Test with a 15ml before buying the 300ml.
✕
"300ml will go off before I finish it." Kept sealed and cool, it lasts well. For daily use it is finished in good time and is the best value.
Who the 300ml suits
The value size, and how to use it well.
1
A daily-use scent
Best value per ml
If you run one scent every day, the 300ml gives the best price per ml - months of your favourite without reordering.
2
Large homes and spaces
More hours of use
A bigger home or a diffuser you run for longer benefits from the 300ml's value and longevity.
3
Light commercial
Airbnb, clinic, salon
For hosting or a small business running a diffuser through the day, the 300ml is the economical restock so the scent never lapses.
The honest steer
The 300ml is the reward for knowing your scent - best value, months of use.
Test with 15ml, commit with 300ml.
Size guide
Which size for you
| Size | Price | Best for |
|---|---|---|
| 15ml | ₹299 | Trying a scent |
| 100ml | ₹999 | Everyday main scent |
| 300ml | ₹1799 | Daily use, best value |
So the 300ml is the value refill for a scent you love and use daily. A diffuser scents the room on a few drops - even the 300ml is about value and longevity, not a stronger scent, and it does not purify the air.
The SOSA range
The SOSA Hotel Collection is a water-based ultrasonic diffuser fragrance in seven hotel-inspired scents - 15ml ₹299, 100ml ₹999, 300ml ₹1799. Prices below are the 15ml.
SOSA range
7 hotel-inspired scents · water-based · 15ml / 100ml / 300ml
| Hotel-inspired scent | Character | Best for | From |
|---|---|---|---|
| Quiet Luxury (Ritz-Carlton-inspired) | White tea + bergamot + cedar | Lobby calm; living room | ₹299 |
| White Tea Serenity (Westin-inspired) | White tea + aloe + cedar | Spa-clean; bedroom | ₹299 |
| Forest Suite (1 Hotels-inspired) | Cedarwood + vetiver + green leaves | Biophilic; study | ₹299 |
| Old-World Glamour (St. Regis-inspired) | Amber + violet + woods | Evening elegance | ₹299 |
| Tea Garden (Shangri-La-inspired) | Jasmine + green tea + white tea | Serene; quiet rooms | ₹299 |
| Warm Welcome (Four Seasons-inspired) | Citrus + floral + sandalwood | Gracious; reception | ₹299 |
| Lobby Bar (W Hotels-inspired) | Citrus + pepper + amber | Bold; entertaining | ₹299 |
SS
ISIPCA
Versailles
Versailles
A note from Sonal
I trained as a perfumer at ISIPCA in Versailles, and the one thing every great hotel taught me is that scent is the first thing you notice and the last thing you forget. I wanted to bottle that feeling for the home.
So the Hotel Collection is seven water-based diffuser fragrances, each my own interpretation of the style a famous hotel is known for - composed in our own lab, made to run cleanly through a SOSA ultrasonic diffuser. Please use the SOSA diffuser fragrance only; raw essential or carrier oils are thick and can clog the misting plate.
To be clear: these are inspired interpretations, not the hotels' actual proprietary scents. SOSA is not affiliated with or endorsed by the hotels named - the names just describe the scent style. I would rather you knew exactly what you are buying: a perfumer's take on that hushed, expensive calm, at a fair price.
Frequently asked questions
How long does the 300ml last?
Many months of daily use - a few drops per tank goes far. The 300ml is the best value per ml.
Is the 300ml the best value?
Yes - the best price per ml in the range, for a scent you use daily or a larger space.
Should I test before buying 300ml?
Yes - confirm the scent with a 15ml first, since the 300ml is a bigger commitment.
Is 300ml good for a business?
Yes - for an Airbnb, clinic or salon running a diffuser through the day, it is the economical restock.
Does the 300ml smell stronger?
No - same fragrance, more of it. Size is about value and longevity, not strength.
Ready to choose
SOSA Hotel Collection - the value 300ml refill, water-based, ₹1799
From ₹299 (15ml), ₹999 (100ml) and ₹1799 (300ml). Water-based, IFRA-standard, phthalate-free, composed in India by an ISIPCA Versailles-trained perfumer, made to run safely through SOSA ultrasonic diffusers. Independent hotel-inspired interpretations - not affiliated with the hotels named. Ships in 24 hours from Pune.
Shop the Hotel Collection → Read the founder story
Continue the read
Related guides from the SOSA founder diaries
- Best luxury hotel scents for home
- Best hotel fragrances for home in India
- Why luxury hotels always smell amazing
- How hotels create signature scents
- Best ultrasonic diffuser fragrance under ₹500
- Best humidifier fragrance under ₹1000
- Buy ultrasonic diffuser fragrance online in India
- Shop: SOSA Hotel Collection
- Brand: Founder story - why SOSA exists
Editorial standards & sources
About this guide: Written by Sonal Sahani, ISIPCA Versailles-trained founder and perfumer at SOSA Home & Body. Product recommendations reflect the SOSA range; the buying criteria apply to any brand. "Best" is presented as a checklist, not a universal verdict. Sensitivity to fragrance is individual; this is general information, not medical advice.Facts verified June 2026: SOSA Hotel Collection is a water-based ultrasonic diffuser fragrance (refill) in 7 hotel-inspired scents - 15ml ₹299, 100ml ₹999, 300ml ₹1799 - composed in India by an ISIPCA Versailles-trained perfumer to fragrance-industry (IFRA) standards, phthalate-free, made to run through SOSA ultrasonic diffusers (Boondh, Sukoon, Phuhaar) and NOT for reed diffusers, waterless nebulisers, skin or wax burners; use SOSA diffuser fragrance only (raw essential/carrier oils can clog the misting plate). These are independent, hotel-inspired fragrance interpretations created by SOSA. SOSA is not affiliated with, endorsed by or associated with the hotels named; all hotel names are trademarks of their respective owners and are used only to describe the scent style.