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
王蔚然 1金慧 1陈冰冰 1王兵 1吴彦 1陆烨2
作者信息
- 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
- 折叠
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.
Abstract
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Key words
air disinfection machine/viral aerosol/Escherichia coli phage/biological air sampler引用本文复制引用
基金项目
浙江省基础公益研究计划(LGF21H260008)
出版年
2024
NETL
NSTL
万方数据