... :2001,FFP2 standard. 3,Used for medical&persona Valve Respirator1, low price and high quality;2, with ... , flat, ES purifying, active carbon, solid, cup, valve, spongePacking20pcs/box, 16boxes/ctncertificateNELSON LAB, BFE>99%, CE ... EN 14683:2005, EN149 FFP2Min order500pcsDelivery15 daysPaymentT/T or L/CApplicationDaily life, hospital, food processing, electronic, ...