... ,NELSON LAB,BFE>99%; 3,CE EN 14683:2005. respirator protection mask 1, low price and high quality;2, with easy ... /yellowSize17.5x9.5cm/14.5x9cmMaterial and weight20gPPx22gMBx25gPPStyleMedical, flat, ES purifying, active carbon, solid, cup, valve, spongePacking50pcs/box, 40boxes/ctncertificateNELSON LAB, BFE ...