一种空气消毒机对高浓度病毒气溶胶杀灭效果的评价  

Evaluation of the killing effect of an air disinfection machine on high concentration of viral aerosols

作　　者：王蔚然 金慧[1] 陈冰冰[1] 王兵 吴彦[1] 陆烨[2] WANG Wei-ran;JIN Hui;CHEN Bing-bing;WANG Bing;WU Yan;LU Ye(Hangzhou Center for Disease Control and Prevention&Hangzhou Health Supervision Instiution,Hangzhou 310021,China;Zhejiang Provincial Center for Disease Control and Prevention)

机构地区：[1]杭州市疾病预防控制中心杭州市卫生监督所,浙江杭州310021 [2]浙江省疾病预防控制中心

出　　处：《中国消毒学杂志》2024年第10期731-733,共3页Chinese Journal of Disinfection

基　　金：浙江省基础公益研究计划(LGF21H260008)。

摘　　要：目的观察一种空气消毒机对室内空气中高浓度病毒气溶胶的灭活效果。方法使用微生物气溶胶发生器在气雾室内分别发生浓度为1.04×1011、2.28×109和3.50×108 pfu/m3的高浓度大肠埃希菌噬菌体MS2的病毒气溶胶。采用生物空气采样器在消毒前后采集房间内空气,评价该空气消毒机对病毒气溶胶的灭活效果。结果该空气消毒机启动运行10 min,对不同浓度的大肠埃希菌噬菌体MS2气溶胶的杀灭率均>70.00%。该空气消毒机启动运行30 min,对不同浓度的大肠埃希菌噬菌体MS2气溶胶的杀灭率均>99.99%。结论该空气消毒机对密闭空间内高浓度病毒气溶胶灭活效果较好。Objective To observe the inactivation effect of an air disinfection machine on high concentration of viral aerosols in indoor air.Methods A microbial aerosol generator was used to generate high concentrations of viral aerosols of Escherichia coli phage MS2 with concentrations of 1.04×1011,2.28×109,and 3.50×108 pfu/m3 in an aerosol chamber.A biological air sampler was used to collect the air in the room before and after disinfection to evaluate the inactivation effect of the air disinfection machine on viral aerosols.Results After the air disinfection machine running for 10 min,the killing rates of different concentrations of Escherichia coli MS2 aerosols were all>70.00%.After the air disinfector running for 30 min,the killing rates of different concentrations of Escherichia coli MS2 aerosols were all>99.99%.Conclusion This air disinfection machine has a good effect on inactivating high concentration of viral aerosols in enclosed spaces.

关 键 词：空气消毒机 病毒气溶胶 大肠埃希菌噬菌体 生物空气采样器 

分 类 号：R187.2[医药卫生—流行病学]