3ply, PP non-woven 20g+filter 20g+pp non-worn 25g This mask consists of below material: - Ply1: 20G / M2, SPUN - BOND PP - Ply2: 20G / M2 MELT BROWN PP (FILTER) - Ply3: 20G / M2 SPUN - BOND PP Key Specifications: Non-woven material with air permeability, 99% BFE, flat type, a 3-ply pleated design, unique surface water-resistant and soft lining, adjustable noseband for easy to fold and carry, loop-adjuster used together to adjust for different head sizes and wear variations of different people. Resistance to penetration by synthetic blood-120mmHg. Sterile: Sterilized by ethylene oxide. Distinguished with appearance: Sewing edge; Folded edge; Auto edge. Adaptable nose bar, fibreglass free, latex-free. BEF â?¥99%Filter Sterile Certificates: ISO, CE, FDA Payments: T/T 50% deposit Payment within 3 days after issuing the Performa invoice, 50% Payment against shipping documents Delivery time: 3-5 days