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...http://www.google.com.au/patents/US6340024?utm_source=gb-gplus-sharePatent US6340024 - Protective hood and oral/nasal mask
