6-ply 3D Nano Facial Protective Mask Confirms to GB2626-2006 KN95 Standard Confirms to EN149:2001 +A1-2009 FFP2 Standard Confirms to NIOSH 95 (42 CFR PART 84) Standard Features: - 6 ply including Nano PTFE membrance filtration - With the bacteria resistance rate up to 99% - Individual sealed packaging, sterile - It can be recycled for 20 times - 800,000 production capacity per day - CE, FDA certification