外科口罩防病毒到不了95%,主要是戴不嚴實。N95隻要正確佩戴,肯定更安全。
所有跟帖:
• 密封是關鍵。隻要看看接觸新冠病人的醫生戴啥就明白了。 -周老大- ♂ (0 bytes) () 01/23/2022 postreply 14:19:04
• 密封是關鍵。隻要看看接觸新冠病人的醫生戴啥就明白了。 -周老大- ♂ (0 bytes) () 01/23/2022 postreply 14:19:04
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