NTRS - NASA Technical Reports Server

Back to Results
Cleaner Air for Home and OfficeIncreased insulation has led to higher concentrations in homes and offices of toxic chemicals caused by emissions from synthetic building components. Recent NASA research regarding future interplanetary manned spacecraft has shown that certain plants can absorb gasses, reducing indoor air pollution. After working with water purifying water hyacinths, Dr. B. C. Wolverton at NSTL developed a carbon/plant filter system to remove chemicals, smoke, etc. Two companies have commercialized the system. Bio-safe provides plants, a bed of activated carbon and an air pump installed near the plant's roots. Pollutants are trapped by the charcoal and either digested by the roots or broken down by microorganisms. Purified air is then directed back into the room. Applied Indoor Resource Company markets Bio-Pure, which includes plants on a layer of patented soil medium with activated carbon. Legumes and mosses filter the air; a blower moves air through the filtering system for cleansing by microorganisms. Research at NSTL continues, and the system may eventually be enlarged.
Document ID
Acquisition Source
Stennis Space Center
Document Type
Date Acquired
August 20, 2013
Publication Date
January 1, 1989
Publication Information
Publication: Spinoff 1989
Subject Category
Environment Pollution
Distribution Limits
Work of the US Gov. Public Use Permitted.
No Preview Available