... 8822 dust mask 1.CE EN149:2001,/FFP2 standard; 2.High-efficiency filter 3.convenient and durablenonwoven cup mask, 3M respirator Made ... 3rd layer: 60gFFP2 melt blown 4th layer: 120g polyester cotton (2) Feature:* 4-ply composition, reliable protection* High bacteria filtration efficiency ... 20pc/box, 160pcs/ctncarton size:67*31*31cm, G.W.:2.8KG3M 8822 face masks face shield medical consumables full face ...