Multiple-element air filter
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United States of America Patent
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Aug 31, 1999
Grant Date -
N/A
app pub date -
Oct 10, 1997
filing date -
Apr 12, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An air filtering unit for preparing highly purified air comprising: a) an inert separation filter for removing solid particular matter, b) a filter element comprising solids adsorbing molecules by using van der Waal forces; c) a filter element comprising molecular sieves; and optionally d) a filter element having the ability of binding polar, acid or basic molecules.
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