With only three varieties of plants, we can grow our own fresh air indoors, to keep us healthy.

After studying the effects these plants had on air quality for the past 15 years in a building in New Delhi, India it was found that there was a 42% probability of increasing blood oxygen by 1% simply by being in the building for one hour. Compared to other buildings in the city, eye irritation was reduced by 52%, respiratory symptoms down by 34%, headaches by 24%, lung impairment by 12%, and asthma by 9%.

They were also able to reduce the fresh air supplied to the building and still meet industry standards for healthy indoor air, netting a reduction of energy costs by greater than 15%. With buildings consuming 40% of the world’s energy, this is a big deal.