Thought ya'll might be interested in this article......

All of the foliage plants tested effectively removed pollutants from the air. Some were better than others were. Plants also removed different levels of benzene, formaldehyde and trichloroethylene. The plants NASA tested and found effective were aloe vera (Aloe barbadensis), arrowhead plant (Syngonium podophyllum), banana (Musa oriana), Chinese evergreen (Aglaonema modestum), elephant ear (Philodendron domesticum), English ivy (Ficus benjamina), gerbera daisy (Gerbera jamesonii), golden pothos (Epipremnum aureum), heartleaf philodendron (Philodendron oxycardium), Janet Craig (Dracaena deremensis), lacy tree philodendron (Philodendron selloum), marginata (Dracaena marginata), mass cane or corn cane (Dracaena massangeana), mini-schlefflera (Brassaia arboricola), mother-in-law's tongue (Sansevieria lauentii), oyster plant (Tradescantia), peace lily (Spathiphyllum), peperomia (Peperomia obtusifolia), pot mum (Chrysanthemum elatum) and spider plant (Chlorophytum elatum).

The tests so far suggest that many more plants will likely help clear the air. The main need seems to be a healthy, growing plant.

Plants vary in how well they remove pollutants. To get the best effects, it's best to have as many kinds of plants as you can.

George Tabb is an agent with the Alabama Cooperative Extension System. He can be reached at (334) 738-2580 or by e-mail at tabbgeo@aces.edu

Here is a link that might be useful: Houseplants - Mtgy Advertiser - full article