Houseplants purifying the air

Put your full name here fmchow at
Sun Jan 28 04:45:01 EST 1996


I saw a program on PBS recently about using houseplants to purify the
air.  It was based a meeting with Dr. Wolverton of NASA.  At one point
he demonstrated a system which improved the efficiency of the plant
purification by 25 times (or at least that's what I think he said).

Can anyone give me more information on this?

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