Add a liver enzyme to a type of ivy to purify the air in buildings

A Faustian air filter? THE AIRin modern homes and offices is pretty clean, but not as clean as it might be. Often, it contains small amounts of volatile, toxic, organic compounds such as benzene, formaldehyde, butadiene, carbon tetrachloride, naphthalene and chloroform. Chronic exposure to these is a bad thing, so clearing them out of the air people breathe is widely accepted as worthwhile. Finding an effective way to do so has proved difficult. But Stuart Strand, Long Zhang and Ryan Routsong, o...