根据近年来我国火灾统计数字表明,城市火灾呈上升趋势,而城市头号威胁也来自火灾,因此,与火灾作斗争,保护国家和人民生命与财产安全,是消防行业在新时期紧迫而光荣的任务。建筑物发生火灾时,可燃物燃烧会产生大量的一氧化碳、二氧化碳和其他有毒气体。据中外火灾案例伤亡人员分 According to statistics of fires in our country in recent years, urban fires have been on the rise and the number one threat in cities has come from fires. Therefore, fighting against fires and protecting the life and property of the country and people is an urgent and honorable task for the fire protection industry in the new era . In the event of a building fire, combustible combustion produces large amounts of carbon monoxide, carbon dioxide and other toxic gases. According to Chinese and foreign fire cases, casualties points