0.3um=300nm,可见N95口罩根本无法直接阻挡新型冠状病毒颗粒。直观举例,0.3um孔径和125nm冠状病毒直径做对比TIPS:病毒直径在100nm以内,目前发现的最大的是痘病毒直径约300nm,新冠状病毒为125nm。
N95口罩:N95型口罩对空气动力学直径≥0.3µm的颗粒的过滤效率达到95%以上
感觉总比抢卫生纸的好吧日本
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Losing face: 6,000 surgical masks stolen from Kobe hospital
A total of 6,000 surgical masks have been lost at a hospital in Kobe, it was learned Tuesday. The Hyogo Prefectural Police is investigating the incident aswww.japantimes.co.jp