Snake plant

Recommended for improving indoor air quality, it absorbs CO2 at night.

Sansevieria Trifasciata also called mother-in-law’s tongue is one of the most recommended plants for improving indoor air quality. An evergreen perennial plant which, like Aloe Vera, emits oxygen at night.

As houseplants, Sansevieria thrive on warmth and bright light, but will also tolerate shade. They can rot from over-watering, so it is important that they are potted in well-drained soil, and not over-watered.

The NASA Clean Air Study found Sansevieria trifasciata has air purification qualities, removing 4 of the 5 main toxins. It exchanges oxygen and carbon dioxide using the crassulacean acid metabolism process, unique because few plant species have adapted it. It allows them to withstand drought. The microscopic pores on the plant’s leaves, called the stomata and used to exchange gases, are only opened at night to prevent water from escaping via evaporation in the hot sun.

Pollutants removed: benzene, formaldehyde, trichloroethylene, toluene and xylene

Know more:

Sansevieria trifasciata - wikipedia

NASA Clean Air Study - PDF

Plants to help you sleep

Indoor plants which clean the air

Crassulacean acid metabolism, CAM photosynthesis