An investment in knowledge always pays the best interest.
Benjamin Franklin
Indoor Air Quality
How to Grow Fresh Air
50 Houseplants that Purify Your Home or Office
A NASA study found that ordinary houseplants are actually the best filters of common air pollutants.
In addition to their beauty, houseplants can remove poisonous pollutants such as ammonia, formaldehyde, and benzene, which are often released by furniture, carpets, and building materials. This easy-to-follow guide--written by the NASA scientist who did the research--tells how to grow 50 popular plants and rates each one for their ability to remove pollutants. Full-color pictures help you choose the best plants for your home.
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