Carbon Dioxide: a global, year-round
Blind Spot in Indoor Air
Air pollution doesn't stop when you close your windows, it starts.
The World Health Organization says carbon dioxide levels above 1000 PPM are toxic.
You’re probably reading this in a room with over 1500 PPM.
This leads to headaches, decision fatigue, and cognitive decline as you spend 90% of your time indoors be it your home, gym, or office.
greenwaterHOME (world's first indoor Air Synthesizer) uses micro-algae to decarbonize your every breath & bring oxygen back.
Without
With
BOOSTS HEALTH, FOCUS & SLEEP – High indoor CO₂ leads to brain fog, fatigue, and shallow sleep. Our photosynthetic system reduces CO₂ levels to below 1000 PPM, improving cognition, decision-making, and sleep quality across homes, offices, and wellness spaces.
FIRST OF ITS KIND AIR SYNTHESIZER – Uses the photosynthetic power of micro-algae to generate fresh oxygen and capture carbon exponentially faster than plants or trees. Also equipped with HEPA, carbon, and pre-filters to remove PM2.5 and airborne pollutants like traditional air purifiers.
BUILT FOR LONG-TERM WELLNESS – Long-term exposure to high indoor CO₂ can reduce oxygen delivery in the body, putting strain on your lungs, heart, and brain. greenwaterHOME maintains healthier air with lower CO₂ and higher oxygen—supporting better lung capacity, mental clarity, and cardiovascular health over time.
ALSO A COFFEE TABLE – Sleek enough to sit beside your sofa, powerful enough to transform your air. greenwaterHOME blends into your home as a minimalist coffee table or design centerpiece—quietly improving your health and healing the planet.
Diving into Greenwater
with some frequently asked questions
The Invisible Threat
More often than not, your headache, fatigue and brain fog have nothing to do with your caffeine intake; it's the carbon dioxide.
Since we spend 90% of our time indoors, we end up being exposed to high levels of carbon dioxide including in our gyms, offices, and bedrooms.
Chronic exposure to high levels of CO2 reduces the oxygen-carrying capacity of the blood. This weakens the immune system, making individuals more susceptible to infections, illness, and reduced recovery times from sickness.
The disrupted balance of oxygen and CO2 in the blood, which can impair your brain’s ability to function properly.
Long-term exposure to elevated indoor CO2 is associated with increased anxiety, stress, and overall mental health deterioration. In many urban office spaces, workers often experience fatigue, poor focus, and decreased overall productivity.
Air Purifier vs greenwaterHOME: Air Synthesizer
They don't capture carbon dioxide. They can't produce oxygen.
Most air purifiers rely on HEPA filters or ionization, which remove pollutants but don’t enhance air composition.
greenwaterHOME goes beyond filtration by using living microalgae to actively convert CO2 into oxygen. Unlike traditional air purifiers, it doesn’t just circulate the same stale air—it transforms your space into a fresher, healthier environment.
Old Algae, New Purpose
Your used algae isn’t waste—it’s a gift to the soil. Packed with nutrients, it enriches the earth, restores microbial life, and improves soil health naturally.
Whether added to your garden or a community compost, it helps regenerate depleted land and supports thriving plant life. With greenwaterHOME, every refill cycle contributes to a greener, healthier planet.
Engineered For All
We love pets, kids, and just about everyone! Safety is a top priority, and greenwaterHOME is designed to be completely non-toxic and family-friendly. Unlike chemical-based purifiers, it operates without releasing harmful byproducts, making it safe to use around children and pets.
Sound & Size
Depth 450 mm
Height 575 mm
Width 400 mm
Noise < 25dB
Let's Bring Oxygen Back: Explained
Our founders’ family has over 5 decades living in New Delhi, India.
Starting 2016, among other things, the Delhi government has had to shut down schools for a few weeks because the air quality is beyond toxic.
Our mission is to help our future look more like the past than the present. We are bringing oxygen back.
Reasons to not get greenwaterHOME
We couldn't think of any :)
Our Team Is Here For You
Do you have any questions?
Greenwater Blog
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