天气预报 > 其他 > kn95口罩多久换一次
kn95口罩多久换一次
更新时间: 2020-11-03 00:00:00  

kn95口罩在普通情况下3天换一次,但是现在新型肺炎疫情比较严峻,医生的建议是每4个小时更换一次,如果是去人流密集的地方是1-2个小时更换一次。如果KN95口罩遭到污染,比如在人员密集的地方或者在疫区的情况下,KN95口罩如果被对面打喷嚏或者咳嗽一类的,属于被污染的情况,需要及时更换。

关键词: kn95 口罩 多久

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