要在什麽情況下,N95才會不夠?一般情況都足夠了吧?
所有跟帖:
• N95 就是透過5%,普通口罩透過70%,暴露量差14倍。既然醫護上N95幹8小時頂不住,戴普通口罩在醫院同一區域呆一小 -周老大- ♂ (21 bytes) () 12/31/2022 postreply 00:59:00
• N95 就是透過5%,普通口罩透過70%,暴露量差14倍。既然醫護上N95幹8小時頂不住,戴普通口罩在醫院同一區域呆一小 -周老大- ♂ (21 bytes) () 12/31/2022 postreply 00:59:00
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