近年来研究显示,65%的实验室不明原因感染是因为实验室工作人员吸入了扩散在空气中的病原微生物气溶胶所致〔1〕。生物安全柜是生物安全实验室内最重要的安全设备,形成最重要的防护屏障;能使感染性气溶胶局限于一定的空间而不扩散,从而保护实验室工作人员、实验室环境和实验对象,因此正确使用生物安全柜的意义重大。目前,本市各级医疗机构和疾控系统的生物安全柜的使用不尽如人意,绝大多数使用后缺少性能检测。为更好地落实国家实验 Recent studies have shown that 65% of laboratories with unexplained infections are caused by laboratory workers inhaling the aerosols of pathogenic microorganisms that have spread in the air [1]. Biosafety cabinets are the most important safety devices in biosafety laboratories, forming the most important protective barrier; confining infectious aerosols to a certain space without proliferation, thereby protecting laboratory workers, laboratory environments, and subjects Therefore, the use of biosafety cabinets is of great significance. At present, the use of biological safety cabinets at all levels of medical institutions and disease control systems in this Municipality is not satisfactory, and most of them lack performance testing after use. To better implement the national experiment