Air-cleaning filter, method of producing the same, and high-level cleaning device
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United States of America Patent
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-
Nov 14, 2000
Grant Date -
N/A
app pub date -
May 12, 1999
filing date -
Jul 3, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An air filter, a method for manufacturing the same, and also a high efficiency air cleaning apparatus employing the same are disclosed. The air filter includes a supporter and an inorganic material layer that is formed by fixing the powder of the fraipontite mineral to the surface of the supporter, using the powder of an inorganic substance as a binder. The method for manufacturing the filter includes the steps of immersing a supporter in a suspension in which the powder of the fraipontite mineral and the powder of an inorganic substance as a binder are dispersed as the suspensoid, and drying the supporter impregnated with the suspensoid, thereby forming an inorganic material layer fixed to the surface of the supporter. The fraipontite mineral adsorbs and removes gaseous acid or basic impurities in the air while the inorganic substance as a component of the inorganic material layer works as an adsorbent against gaseous organic impurities contained in the space of the air cleaning apparatus.
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