從過濾氣溶膠的角度講，KN95和N95的口罩都達到了>95%效果。這就是“N95”的含義。

來源: 阿明. 於 2021-02-15 16:44:22 [舊帖] [給我悄悄話] 本文已被閱讀：次

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