How To Grow Fresh Air

Author B.C. Wolverton originally began his research to investigate creating a breathable environment for a NASA lunar habitat. What came of that research was the discovery that houseplants are the most efficient filters of common pollutants such as ammonia, formaldehyde and benzene. (See our list of the top plants for cleaning the air).

SafeCoat: Non-Toxic Paint

Why does almost all of the paint sold in the U.S. contain toxic ingredients? Because chemicals (such as formaldehyde and acetone) are cheap. The resources needed to study the long-term effects of the thousands of chemicals contained in paints, stains, and varnishes would be immense. The . Other non-toxic ingredient could be used — but they are slightly more expensive. …