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15 houseplants for improving indoor air quality

By: Julie Knapp on March 1, 2010, 11:50 a.m.
Peace lily (Spathiphyllum 'Mauna Loa')

Photo: Kaz Andrew/flickr

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Peace lily (Spathiphyllum)

Shade and weekly watering are all the peace lily needs to survive and produce blooms. It topped NASA’s list for removing all three of most common VOCs — formaldehyde, benzene and trichloroethylene. It can also combat toluene and xylene.