Respiratory air filter
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United States of America Patent
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-
Sep 5, 2006
Grant Date -
Jul 29, 2004
app pub date -
Apr 24, 2002
filing date -
Apr 24, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A respiratory filter includes an air-permeable sleeve and at least one filter layer that is arranged in the sleeve and contains activated carbon. The activated carbon contained in the filter layers serves as a gas filter that, by absorption, at least partially removes the noxious gases that are contained in the air inhaled.
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Family
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