Kim Hoi Pin, Jo Mi Seong, Kim Cheol Hong, Choi Jeong Suk, Yu Il Je
Aerosol Toxicology Research Center, HCTm, Co., Icheon, Republic of Korea.
HCT, Co. Ltd, Icheon, Republic of Korea.
NanoImpact. 2020 Jul;19:100231. doi: 10.1016/j.impact.2020.100231. Epub 2020 Jun 12.
With the rapid global spread of the new coronavirus and risk of pneumonia from COVID-19 infection, wearing a mask has become an essential defense for all frontline doctors, nurses, and healthcare professionals. Plus, the rise in demand for masks from the general public means the worldwide supply of masks is insufficient, which has led to an increase in the reuse of disposable masks. Therefore, this study compared the impact of autoclaving (steaming) and 70% ethyl alcohol treatment for decontaminating masks, as both methods can easily be used at home. The autoclaved masks showed a better filtration efficiency than the 70% ethyl alcohol-treated masks. A further investigation of 8 used KF 94 masks (filtration efficiency >94%) also showed that autoclaving for decontamination was limited to two times. Moreover, a kitchen towel mask, a popular homemade alternative, did not show sufficient filtration efficiency.
随着新型冠状病毒在全球迅速传播以及新冠病毒感染引发肺炎的风险，佩戴口罩已成为所有一线医生、护士及医护人员的重要防护措施。此外，公众对口罩需求的增加意味着全球口罩供应不足，这导致一次性口罩的重复使用有所增加。因此，本研究比较了高压灭菌（蒸煮）和70%乙醇处理对口罩消毒的影响，因为这两种方法都可在家中轻松使用。经高压灭菌的口罩比经70%乙醇处理的口罩显示出更好的过滤效率。对8个使用过的KF 94口罩（过滤效率>94%）的进一步调查还表明，用于消毒的高压灭菌次数限制为两次。此外，一种流行的自制替代品厨房毛巾口罩并未显示出足够的过滤效率。
