Caution Oxygen Deficiency Hazard 1 Sign
All compressed gases and gas cylinders present physical hazards. Inert and non-flammable gases may displace air, causing an oxygen-deficient atmosphere that can result in unconsciousness or death. Using corrosive, reactive, and toxic gases poses chemical hazards, while flammable gases pose fire and explosion hazards. A gas cylinder may have multiple hazards therefore proper identification is imperative. Post Caution Oxygen Deficiency Hazard 1 Sign to communicate present hazards to all personnel and avoid injuries.