在灭火战斗中导致消防官兵中毒的因素很多,主要有三大因素。 第一,火灾中热烟气的毒害作用。热烟气的毒害作用包括缺氧、高温气体对呼吸道的热损伤和热烟尘对吸呼道的堵塞作用。一是缺氧。一般空气中氧约占21％,在火场中由于可燃物燃烧后产生大量烟雾或气体,使火场中空气氧的含量逐渐减少,会使人出现头 There are many factors that cause fire officers to be poisoned during the fire fighting. There are mainly three major factors. First, the toxic effects of hot smoke in fires. The toxic effects of hot flue gas include oxygen deficiency, thermal damage to the respiratory tract by high-temperature gases, and clogging of the inhalation channels by hot smoke. One is oxygen deficiency. Oxygen in the air generally accounts for about 21%. After the combustibles are burned, a large amount of smoke or gas is produced in the fire field. As a result, the content of oxygen in the air in the fire field gradually decreases, causing people to appear