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About 70-80% of fire deaths are the result of smoke inhalation. A large number of deaths also result from getting stuck in the fire building without being discovered. The Smask is a smart fire-fighting mask which is designed to defeat smoke and deliver the location of the survivor to the fire-fighting controller. The Smask can be set inside of the big building with many people working or living in it.
Yu Cao Meiying Shen Fei Cen Defu Bao