Plants remove toxins from the air. Up to 87% of volatile organic compounds (VOCs) every 24 hours, according to NASA research. VOCs include substances like formaldehyde (present in rugs, vinyl, cigarette smoke, and grocery bags). Benzene and trichloroethylene can be found in man-made fibers, inks, solvents, and paint. However, benzene is commonly found in high concentrations in study settings, where books and printed papers abound. Plants absorb these from the air effortlessly, while releasing the very oxygen we breathe. What a coincidence! You’d think we all evolved together on the same planet or something.