Disposal Non-medical / Acceptable payment methods: - TT / LC Manufacturing Standard GB32610-2016 Certificates FDA/CMDCAS/ANMAT Function anti-dust,anti-bacteria,anti-virus Materials nonwoven cloth Fabric Structure 1st ply:20g/m2 blue PP non-woven fabric; 2nd ply:25g/m2 melt-blown (filter); 3rd ply:20g/m2 white PP non-woven fabric Type earloop Color blue Item Size 17.5*9.5cm Box Size 19.5*10*7.5cm Carton Size 52*40.5*32cm Gross Weight 8.9kg BFE 95-99% Packing 50pcs/box,40boxs/carton,2000pcs/carton