火灾浓烟的危害据统计,火灾中被浓烟熏死呛死的人是被烧死者的4.5倍。在一些火灾中,被“烧死”的人实际上是烟气中毒窒息死亡之后又遭火烧的。浓烟致人死亡的主要原因是一氧化碳中毒。在一氧化碳浓度达1.3%的空气中,人吸上两三口气就会失去知觉,呼吸13分钟就会导致死亡。而常用的建筑材料燃烧时所产生的烟气中,一氧 Hazard of fire smoke According to statistics, the fire was thick smoke smoked dead people who were burned to death 4.5 times. In some fires, people who were “burnt to death” were actually burned after being suffocated by smoke poisoning. The main cause of death from smoke is carbon monoxide poisoning. In air with a carbon monoxide concentration of 1.3%, one can lose consciousness by taking two or three breaths and breathing for 13 minutes can result in death. The commonly used building materials produced by combustion of flue gas, oxygen