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When there is a fire and the whole room is filled with smog, without being
able to find the exit, put on this fire escaping glasses and you can look
through the smog and be prevented from inhaling the smoke for a while
so as to effectively avoid oxygen deficit. Thus you can escape quickly.
Kunming University of Science and
Wuhan University of Technology
Chao Gao Junchao Yang Qiancai Li Jianyong Liao