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https://www.signet.net.au/store/products/46701/3m-vflex-n95-particulate-respirator-and-surgical-mask
下面的型號3M 1804 確實是NIOSH-Approval 的所以我就買了,估計這是内科醫生做手術才用到的,然而買了安心些。
來源型號見
https://www.cdc.gov/niosh/npptl/topics/respirators/disp_part/respsource3surgicaln95.html |
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