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黑口罩不能戴了吗
更新时间: 2021-01-18 14:44:34  

1、黑口罩戴不戴是个人自由,看个人意愿。

2、口罩是一种卫生用品,一般指戴在口鼻部位用于过滤进入口鼻的空气,以达到阻挡有害的气体、气味、飞沫进出佩戴者口鼻的用具,以纱布或纸等制成。

3、口罩对进入肺部的空气有一定的过滤作用,在呼吸道传染病流行时,在粉尘等污染的环境中作业时,戴口罩具有非常好的作用。

关键词: 口罩

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