Method and apparatus for revitalizing exhaled air
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United States of America Patent
Stats
-
Nov 25, 1997
Grant Date -
N/A
app pub date -
Jul 22, 1996
filing date -
Jul 22, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A canister containing one or more working compounds formed of a peroxide and/or superoxide of one or more metals of the alkali and alkaline-earth metal groups such as KO.sub.2 and CaO.sub.2 and a moisture releasing material such as wetted activated charcoal is utilized to replenish the oxygen and absorb the carbon dioxide in exhaled air. The canister may be used in a closed or semi-closed circuit breathing system worm by a user such as a fireman, miner etc.
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