3M 6200 2091 dust mask P100 industrial dust welding smoke glass fiber PM2.5 protective mask

3M brand; Model 6200 2091; features anti-fog and haze dust; color classification No. 2091 6200 6100 2091 three-piece three-piece trumpet; whether imported and domestic; manufacturer 3M China Ltd.; Item 6200 2091; safety standards of the US NIOSH standards; degree of protection P100;