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US 5,180,552 AGranted
Room air purification
AssigneeAffiliated Innovation Management Inc.
InventorDon F. Saceman
Life of this patent
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AssigneeAffiliated Innovation Management Inc.
InventorDon F. Saceman
Estimating the term…
Treatment of room air so as to reduce its content of gaseous and particulate liquid and/or solid contaminants and then to return the air to the ambient atmosphere, with the aid of green plants in suitable apparatus. An open-top housing is divided into upper and lower portions by a foraminous plate adapted to support a potting soil layer. The housing has in its upper portion a water-retaining support for the root ball of a plant and has in its lower portion an air-pump to draw room air in via a bottom opening, to pass it upward through the potting soil and past the plant roots, through an overlying layer of charcoal or the like, out the open top and past the plant leaves, and finally back into the room. Continuous or repetitive intermittent circulation of room air in such manner through such apparatus results in prompt and effective removal of cigarette smoke and numerous other contaminants, at the same time rendering the environment more attractive to persons benefitting from such purification of the air they are necessarily breathing.
In an ambient air purification method including a living green plant having its roots in a surrounding potting medium in an open-top housing through at least some of which such air is passed, the improvement comprising the steps of
Ambient air purification method, comprising the steps of providing waterproof housing means substantially larger in plan length than in plan width containing living green plants with roots surrounded by potting medium,
Room air treatment method utilizing living green plants to remove contaminants therefrom, comprising the steps of
Method of removing contaminants from room air by moving the air along a path containing, an air-treating region having one or more plants and bounded in part laterally by air-impermeable means and supported in part horizontally by air-permeable means and in part by saucer means thereby adapted to retain in the airflow path air-permeable potting medium containing the plant roots.
Dependencies are inferred from the claim text.