冬天已来你口罩戴对了吗？-快科技-科技改变生活

冬天已来你口罩戴对了吗？

周剑平
2019年12月07日 14:13
0

口罩是一种卫生用品，主要由纱布或纸制成，口罩对进入肺部的空气有一定的过滤作用。尤其在传染病流行时、粉尘等污染环境作业时，戴口罩可具有非常好的自我防护作用。但不同类型的口罩作用和功效也有所不同，具体如下：

冬天已来你口罩戴对了吗？

文章出处：科普中国

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#冬天 #口罩

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