Let's Bring Oxygen Back

with greenwaterHOME

The Three Classes of Indoor Air

Particulate
Class 01
Particulate
Dust ยท smoke ยท pollen ยท soot
VOCs
Class 02
VOCs
Benzene ยท terpenes ยท fragrances
Molecular
Class 03
Molecular
Carbon dioxide ยท oxygen depletion
a blind spot in traditional purifiers
greenwaterHOME

Introducing

greenwaterHOME

Generates oxygen. Captures CO2. Purifies your air using an award-winning micro-algae technology and HEPA filtration.

Learn more
Free ยท Takes 60 seconds

Your room has a number.
Do you know yours?

Enter your room size and occupancy. We calculate your CO2 levels, your cognitive performance loss, and exactly what it would take to change both. Instantly. No email required to see results.

50%
Cognitive loss at 1,400 ppm
โ†‘ 1,400
Typical sealed office, ppm
Calculate My Air
Free report. No account needed.

Have questions? Chat with us on WhatsApp

Scientists love to talk about their research. We reply very quickly.

Chat on WhatsApp

Fresh air, indoors,
doesn't exist yet.

Fresh & Active
A little foggy
Very confused
"I want to quit."
9 am
12 pm
3 pm
6 pm
โ˜€๏ธ
๐Ÿงญ
๐Ÿงฉ
๐Ÿ•ฐ๏ธ
โ˜€๏ธ
9 am
Fresh & Active
๐Ÿงญ
12 pm
A little foggy
๐Ÿงฉ
3 pm
Very confused
๐Ÿ•ฐ๏ธ
6 pm
"I want to quit."
50%
cognitive performance lost by early evening in a sealed room as COโ‚‚ quietly builds up around you
Harvard Research
Calculate My Air
Free ยท Takes 60 seconds

The only air quality solution you'll ever need

Traditional Air Purifier
โœ—
Reduces COโ‚‚
โœ—
Adds oxygen
โœ“
Filters dust & PM
โœ“
Removes VOCs
โœ—
Also a coffee table
greenwaterHOME
โœ“
Reduces COโ‚‚
โœ“
Adds oxygen
โœ“
Filters dust & PM
โœ“
Removes VOCs
โœ“
Also a coffee table
Shop on Amazon

Inspired by Nature.
Engineered for you.

greenwaterHOME combines 3-step filtration with the photosynthetic power of micro-algae to bring real freshness back to sealed rooms.

Filtration
Step 01
Filtration
Dust, smoke, and VOCs caught and cleared through a 3-stage system before anything else happens.
Decarbonization
Step 02
Decarbonization
Filtered air passes through a living micro-algae culture that absorbs COโ‚‚ quietly and continuously.
Oxygenation
Step 03
Oxygenation
Through photosynthesis, the algae release fresh oxygen back โ€” the same process as a forest, scaled to fit your space.
Read the science behind it

Decarbonizing your every breath

0% less COโ‚‚ per hour.

Without device
With greenwaterHOME

Fully sealed 8ร—8ร—8 ft room starting above 3000 ppm COโ‚‚. Average reduction rate 32% per hour ยฑ3%. Two COโ‚‚ monitors, readings every 15 minutes, repeated daily for 30 days. Results vary by room size, sealing, occupancy, ventilation, and operating conditions.

What people are saying

People notice the difference.

โ˜…โ˜…โ˜…โ˜…โ˜†  4.3 out of 5 โ€” based on 21 reviews

"

My sneezing stopped, and I no longer feel sleepy toward the end of my workday. Even the subtle sound of water feels calming while I work.

Dr Taniya Bakshi
Baksons, New Delhi
"

I don't open my doors and windows anymore. The air inside already feels fresher than outside.

Dr Poonam Gulia
Art of Living Meditation Coach, Gurgaon
"

Not only does the air feel noticeably better, the product also looks beautiful in my living room. It's definitely a conversation starter.

Mr Yogesh
Home User, Gurgaon
Read More

Globally awarded science. Made in India.

01
U.S. House of Representatives
Special Congressional Recognition
2025
02
UC San Diego
Grand Prize Winner โ€” Triton Innovation Challenge
2024
03
Hong Kong Science & Technology Park
Nominated by UC San Diego for Techathon+ 2025 โ€” one of three startups selected
2025
04
Scripps Institution of Oceanography
StartBlue Ocean Enterprise Accelerator
2023
05
Blackstone LaunchPad
2022โ€“24 Cohorts & Finalists, IDEAS Competition 2023
2022 โ€“ 2024
greenwaterHOME lifestyle

greenwaterHOME

Your room deserves better air.

The world's first indoor Air Synthesizer. Ships across India.