一提起火灾的危害,人们往往首先想到由此而造成的人员伤亡、设备损坏,建筑物被毁等方面的损失。而对火灾现场所产生的热能、气体、烟以及氧气不足而造成的生命财产损失,则往往注意不够。在火灾现场,我们经常见到既没有烧伤,又没有压伤而发生人员死亡的情况,究其原因,其中大多数是由于火灾中产生的烟气所致。火灾中的燃烧产物包括两类:一类是粒子性材料,这种材料以烟的形式出现;另一类是看不见的气体, Mentioning the dangers of a fire, people often first think of the resulting loss of life, equipment damage, destruction of buildings and other aspects. However, the loss of life and property caused by insufficient heat, gas, smoke and oxygen generated at the scene of fire is often not enough. At the scene of the fire, we often saw the occurrence of deaths caused by neither burns nor crushing injuries, the reason most of them were caused by smoke generated in the fire. The products of combustion in a fire consist of two types: one is a particulate material, which is in the form of smoke and the other is an invisible gas,