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A study, led by Dr. B. C. Wolverton, found that plants are effective at filtering benzene, ammonia, formaldehyde, etc. from the air. They found certain tropical plants, which are commonly used as houseplants, are quite effective in removing pollutants from the air and replacing them with breathable oxygen. The report suggests having at least one plant at every hundred square feet at home or at office space.


Though all plants purify air the ones listed below are more effective towards common indoor pollutants. 


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