Biological air filter

Details Biological air filter Biological air filter

1993-10-15

1995-04-18

Spitzer, Robert

Gas separation: apparatus

Solid sorbent apparatus

Plural solid sorbent beds

96135, 96142, 47 66, 55233, 55250, 55274, 55471, B01D 5304

Patent

active

054074703

ABSTRACT:
A biological air filter for cleaning, humidifying, and detoxifying air containing harmful substances, having a generally cylindrical filter housing with a sealing cover and a removable filter element. The filter element contains a substrate and plants. Air is circulated through the moist substrate and released into the room. Dust and harmful substances are trapped in the substrate and are at least partially consumed by the plants. The biological air filter can also be connected to an existing ventilating system. It is decorative and suitable for use in offices, apartments, laboratories, doctor offices, and the like.

REFERENCES:
patent: 4415450 (1983-11-01), Wolverton
patent: 4662900 (1987-05-01), Ottengraf
patent: 4732591 (1988-03-01), Tujisawa et al.
patent: 4959084 (1990-09-01), Wolverton et al.
patent: 5089036 (1992-02-01), Hawes
patent: 5107621 (1992-04-01), Deutschmann, Sr.
patent: 5127187 (1992-07-01), Hattori et al.
patent: 5137625 (1992-08-01), Wolverton
patent: 5190570 (1993-03-01), He
"Interior Landscape Plants for Indoor Air Pollution Abatement", Final Report--Sep. 1989, B. C. Wolverton, Anne Johnson and Keith Bounds, NASA Report MS 39529-6000.

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