日本口罩

日本口罩，日本生產口罩，PFE：乳膠微粒子，阻擋實驗對象0.1um，例如流感病毒等傳播性較廣的細菌；VFE：生物病毒，阻擋均2.8um，例如流感病毒，帶飛沫的病毒（咳嗽，噴嚏）；BFE：細菌，阻擋3um，例如花粉，帶飛沫的病毒。

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