One of the top air purifying plants identified by NASA, Sansevieria removes at least 107 known air pollutants, including carbon monoxide and nitrogen monoxide, formaldehyde, chloroform, benzene, xylene, and trichloroethylene among many others. Sansevieria also produces copious amounts of oxygen throughout the night, making it an excellent plant to keep in the bedroom. Best of all, Sansevieria is an extremely resilient species that can go for weeks without water and seems to thrive in just about any climate, including those with low light, although they do appreciate direct sunlight and fresh air on occasion, which is characteristic of their native habitat of Madagascar. If a prize were available for the most tolerant plant, snake plant (Sansevieria) would certainly be one of the frontrunners. Snake plant care is very straightforward. These plants can be neglected for weeks at a time; yet, with their strappy leaves and architectural shape, they still look fresh. Additionally, they can survive low light levels, drought and have few insect problems. NASA research has even shown that snake plants are able to help keep the air inside your home clean, removing toxins such as formaldehyde and benzene. In short, they are the perfect houseplants.