... 2,EN149:2001,FFP2 standard. 3,Used for medical&persona Valve Respirator1, low price and high quality;2, with easy-to ... , active carbon, solid, cup, valve, spongePacking20pcs/box, 16boxes/ctncertificateNELSON LAB, BFE>99%, CE EN 14683:2005, EN149 FFP2Min order500pcsDelivery15 daysPaymentT/T ... and have got the CE EN149:2001, CE EN14683:2005 certificate. Our company also passed ISO13485 and ISO9001:2000 ...