Air filtering plants
compiled by NASA as part of the NASA Clean Air Study, which researched ways to clean air in space stations. As well as absorbing Carb-diox. and releasing oxygen, as all plants do, these plants also absorb significant amounts of benzene, formaldehyde and/or trichloroethylene.
Aglaonema modestum = Chinese evergreen Alismatales Gartenbedarf
Chrysanthemium morifolium = Pot Mum or Florist's Chrysanthemum Asterales
Dracaena deremensis 'Janet Craig' = Janet Craig dracaena Asparagales
Dracaena deremensis 'Warneckii' = Warneck dracaena Asparagales
Dracaena fragans 'Massangeana' = Cornstalk dracaena Asparagales
Ficus benjamina = Weeping Fig Rosales
Ficus elastica = Rubber Plant Rosales
Gerbera jamesonii = Gerbera Daisy or Barberton daisy Asterales
Philodendron oxycardium = Philodendron cordatum = Heartleaf philodendron Alismatales
Philodendron domesticum = Elephant ear philodendron Alismatales
Philodendron bipinnatifidum = Philodendron selloum = Selloum philodendron Alismatales
Spathiphyllum 'Mauna Loa' = Peace lily Alismatales
Most of these plants are tropical or subtropical. Due to their ability to flourish on reduced sunlight, their leaf composition allows them to photosynthesize well in household light.
The recommendation of NASA is to use 15 to 18 good-sized houseplants in six- to eight-inch diameter containers in a 1.800 square-foot house. The amount of exposed surface soil is also important, as microorganisms in the soil consume trace amounts of airborne toxins as well