The NASA Clean Air Study has been led by NASA in association with the Associated Landscape Contractors of America. Its results suggest that certain common indoor plants may provide a natural way of removing toxic agents such as benzene, formaldehyde and trichloroethylene from the air, helping neutralize the effects of sick building syndrome.
The first list of air-filtering plants was compiled by NASA as part of a clean air study published in 1989, which researched ways to clean air in space stations. As well as absorbing carbon dioxide and releasing oxygen, as all plants do, these plants also eliminate significant amounts of benzene, formaldehyde and trichloroethylene.
NASA researchers suggest efficient air cleaning is accomplished with at least one plant per 100 square feet of home or office space.
* May be toxic to pets and/or children. Toxicity levels vary greatly depending on the variety of plant. Before bringing any plant into a home with pets or children, we recommend doing your research and deciding what works best for you, your family and your living situation.