密闭空间也称局限空间,空间足够大但又有限,进出口受限制,通风不良,能进行非常规、非连续作业。1989—2003年全国42.5%的窒息性气体中毒发生在密闭空间,硫化氢、一氧化碳、二氧化碳是主要因素[1]。我们分析本次密闭空间发生因缺氧致死事件的原因,提出有效的预防和控制措施,旨在 Confined space, also known as the limited space, space is large enough but limited, import and export restrictions, poor ventilation, can carry out unconventional, non-continuous operation. In 1989-2003, 42.5% of the country’s asphyxiating gas poisoning occurred in a confined space. Hydrogen sulfide, carbon monoxide and carbon dioxide were the main factors [1]. We analyze the causes of the fatalities caused by hypoxia in this confined space and put forward effective prevention and control measures aimed at