Protective hood and oral/nasal mask
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United States of America Patent
Stats
-
Jan 22, 2002
Issued Date -
N/A
app pub date -
Nov 4, 1994
filing date -
Jan 7, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved oral/nasal mask-hood is provided for protection of individuals in the event of fire or smoke exposure. When attached to a supplemental supply of oxygen the mask-hood also provides hypoxia protection to individuals exposed to decompression as in some aircraft incidents. The mask-hood employs a five stage filtering process for converting toxic atmospheric air to breathable fresh air. The hood covers the wearer's head, neck and shoulder area. A neck seal is provided inside the hood for preventing gases from locating within the hood and irritating the wearer's eyes. A transparent member is located on the hood adjacent the wearer's line of sight to provide visibility during the emergency. The hood-mask device, as assembled, is small enough to retrofit into the space provided for the present decompression mask alone.
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