House Plants, Living Walls and IAQ

While it’s well known that plants convert carbon dioxide into oxygen through photosynthesis,  NASA's oft cited 1989 study showed that many houseplants also remove harmful elements such as amonia,  trichloroethylene, benzene, and formaldehyde from the air. In research designed to create a breathable environment for NASA orbiting space stations,  scientist Dr. Bill Wolverton discovered that houseplants are ...