Interesting related fact. Some plants like Spathiphyllum are known to remove formaldehyde from the air. This does not eliminate the need of a proper strong ventilation system, but indoor plants helping to protect people from cancer should be in each lab, for good measure.
>In research designed to create a breathable environment for a NASA lunar habitat, noted scientist Dr. B.C. Wolverton discovered that houseplants are the best filters of common pollutants such as ammonia, formaldehyde, and benzene.
