其实，没有任何一种口罩能完全滤过病毒。口罩主要挡住飞沫，稀释病毒进入体内的量和速度。使身体有机会及时清理消灭病毒

来源: fuz 于 2020-03-24 18:28:36 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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