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When a fire occurs, the oxygen content in the air will be greatly reduced, and there are many toxic gases in the smoke. A lot of people died from lack of oxygen, poisoning. So, how to escape in the fire? if we combine fire extin-guisher with air respirator, the problems will be easily solved. When there is a fire, if the fire is small, you can wear air respirator with a fire extinguisher, so the fire fighting person will not
be in the extinguishing of the fire poisoning, if the fire is not under control you can take the air respirator off from fire extinguisher, so that you can wear air respirator safety fled the scene of the fire.
Dalian Minzu University