... style; 2,EN149:2001,FFP2 standard. Cup Active Carbon Valve Face Mask1, low price and high quality ... are available.ColorwhiteSize12x13cmMaterial and weight30gPPx60gMBx210gCStyleMedical, flat, ES purifying, active carbon, solid, cup, valve, spongePacking20pcs/box, 16boxes/ctncertificateNELSON LAB ... ISO13485 and ISO9001:2000 certificate of Quality of Management System. Most of our non-woven products are ...