Activated charcoal filter layer for gas masks
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United States of America Patent
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-
Jan 4, 1994
Issued Date -
N/A
app pub date -
Jun 6, 1991
filing date -
Apr 22, 1988
priority date (Note) -
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status (Latency Note)
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Abstract
The activated charcoal filter layer for gas masks essentially is formed of superimposed, highly air-permeable surface structures with a layer of granular or spherical activated charcoal particles with a diameter of 0.1 to 1 mm affixed to them, and its pressure drop is less than 10 mm water column at a thickness of 4 cm with a circular cross-section of 100 cm.sup.2 at an air flow of 1 1/sec.
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