Decontamination of face masks with steam for mask reuse in fighting the pandemic COVID-19: Experimental supports
Decontamination of face masks with steam for mask reuse in fighting the pandemic COVID-19: Experimental supports
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DOI：
10.1002/jmv.25921
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发表时间：
2020-06-16
影响因子：
12.7
通讯作者：
Chen, Ji-Ming
中科院分区：
文献类型：
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作者：
Ma, Qing-Xia;Shan, Hu;Chen, Ji-Ming
由新型冠状病毒SARS-CoV-2（严重急性呼吸综合征冠状病毒2）引起的2019年冠状病毒病大流行在全球夺去了许多人的生命。佩戴医用口罩或N95口罩（即N95口罩）可减缓病毒传播，降低感染风险。这些口罩的重复使用可以最大限度地减少浪费，保护环境，并有助于解决目前迫在眉睫的口罩短缺问题。使用过的口罩需要消毒，才能安全使用，但消毒不当会破坏口罩的阻隔结构。在本研究中，我们利用传染性支气管炎病毒的禽冠状病毒模拟SARS-CoV-2，证明mmms和N95Ms在沸水上蒸2小时后仍保持其阻断作用。我们还证明了三个品牌的mm可以阻断气溶胶中99%以上的病毒。禽冠状病毒蒸5分钟后完全灭活。总之，这项研究表明，毫米毫米足以在大多数社交场合使用，毫米毫米和n95mm都可以重复使用几天，在使用之间进行蒸汽净化。
The coronavirus disease 2019 pandemic caused by the novel coronavirus SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) has claimed many lives worldwide. Wearing medical masks (MMs) or N95 masks ([N95Ms] namely N95 respirators) can slow the virus spread and reduce the infection risk. Reuse of these masks can minimize waste, protect the environment, and help solve the current imminent shortage of masks. Disinfection of used masks is needed for their reuse with safety, but improper decontamination can damage the blocking structure of masks. In this study, we demonstrated using the avian coronavirus of infectious bronchitis virus to mimic SARS-CoV-2 that MMs and N95Ms retained their blocking efficacy even after being steamed on boiling water for 2 hours. We also demonstrated that three brands of MMs blocked over 99% viruses in aerosols. The avian coronavirus was completely inactivated after being steamed for 5 minutes. Altogether, this study suggested that MMs are adequate for use on most social occasions and both MMs and N95Ms can be reused for a few days with steam decontamination between use.