@wzqtparor @huihui @meina 但是我看香港媒体说外科口罩就够。用n95如果反复使用，可能会造成二次污染。我现在也是出门就口罩
@eme @wzqtparor@pawoo.net @meina 问题是，要防疫的是病毒，所以要n95才可以，如果n92，那就无法过滤病毒，就没有意义了
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