Valve Respirator 1,non-woven disposable anti-dust face ... 2,EN149:2001,FFP2 standard. 3,Used for medical&persona Valve Respirator1, low price and high quality;2, with easy ... and weight30gPPx60gMBx210gCStyleMedical, flat, ES purifying, active carbon, solid, cup, valve, spongePacking20pcs/box, 16boxes/ctncertificateNELSON LAB, BFE>99%, CE EN 14683 ... pls feel free to contact me. Thank you! Valve Respirator