... Active Carbon Valve Face Mask 1,non-woven disposable anti-dust face mask,cup style; 2,EN149:2001,FFP2 standard. Cup Active Carbon ... package are available.ColorwhiteSize12x13cmMaterial and weight30gPPx60gMBx210gCStyleMedical, flat, ES purifying, active carbon, solid, cup, valve, spongePacking20pcs/box, 16boxes/ctncertificateNELSON LAB, ... to contact me. Thank you! Cup Active Carbon Valve Face Mask