The push toward more energy-efficient buildings has come with a side effect: poor indoor air quality. The same things that are good for energy bills, such as insulation and the sealing of leaky buildings, also reduce the quality of air inside homes and offices.
Fortunately, some houseplants can pull double duty: They look good and filter toxins out of the air.
"With rising energy costs, it is imperative that we make our buildings as energy-efficient as possible. However, we learned in the early 1970s with the first energy crisis that sealing a building tightly leads to a variety of indoor air-quality issues," said B.C. Wolverton, owner of Wolverton Environmental Services in Picayune, Miss.
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