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灭活过滤口罩设计构想
source link: https://www.v2ex.com/t/640229
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奇思妙想 - @caowentao - 设想一种过滤面罩，有 2 层过滤系统，可以有效灭活病毒。<br>1.普通外科口罩过滤层，可以过滤飞沫<br>2.浓度大于 75%的酒精灭活层，可以有效灭火病毒。<br>这个面罩应该可以 diy 自制。
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