口罩的三個英文字母 V,P,B

外科口罩 PFE, VFE BFE 代表 微粒過濾率的測試結果
PFE = particle filtration efficiency (顆粒過濾率)
VFE = viral filtration efficiency (病毒過濾率)
BFE = bacterial filtration efficiency (細菌過濾率)

 

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