Technical features: It is used in the protection industry of dust generated during construction, metal casing, stone mining, electronics, pharmacy, physical treatment, polishing and other operations, and has a good protection effect on sandstorms, smog and PM.2.5. Technical parameters: 1. Layer:Non-woven fabric + Non glue cotton +Melt blown fabric 2.Filter Rating: 95%+ 3.Valid: 3 YEARS
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