自制了一打棉布口罩，里外棉布中间夹了一层静电作用大的化纤布。式样是手术口罩。没法保持社交距离时用。常洗，没问题。

来源: commonSense123 于 2020-06-18 16:19:41 [旧帖] [给我悄悄话] 本文已被阅读：次

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