Respiratory device for catastrophic fires and/or smog weather conditions
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United States of America Patent
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-
Oct 27, 1981
Grant Date -
N/A
app pub date -
Jun 19, 1979
filing date -
Jun 21, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fireproof respiratory face mask for use in fires and smog has a granular expanded calcium aluminum silicate base material coated with layers of soda lime, active carbon dust, copper dust soaked into a caustic soda solution and manganese dioxide dust held between two layers of ceramic fiber fleece-like materials felted together to hold the coated granules. The face mask is stored in an easy opening ceramic fiber fireproof package with a pair of fireproof gloves.
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