每次重大火灾伤亡事故,死亡原因主要以烟气中毒、窒息为主,而容易出现群死群伤的场所一般都设有机械防排烟系统,因此,机械防排烟系统的施工质量和功能可靠的重要性不言而喻,本文对机械防排烟系统测试中发现的常见问题进行了分析,以期能对机械防排烟系统质量的提高有所帮助。 Each major fire casualty, the main cause of death in fumes, suffocation, and prone to mass extinction groups are generally equipped with mechanical smoke exhaust system, therefore, mechanical smoke exhaust system construction quality and function The importance of reliability is self-evident, this paper analyzes the common problems found in the mechanical smoke exhaust system testing, with a view to help improve the quality of mechanical smoke exhaust system.