Key Specifications/Special Features: - Description: Respiratory Protection Mask KN95 FFP3 NR FDA CE EN149:2001+A1:2009 - With all certificates best protection mask. - Bridge nose: Can be adjusted freely to ensure the fit to the face - The ear cord: Soft and elastic, which helps to fit the ear - Packing:40pcs/box - Filtering Category:0.3 μm particle filtration�95% - Air mass flow: 85L/min - Aerosol-particle: NaC1 - Aerosol-concentration:15mg/m3 - Relative humidity:35.8% - Certificates: CE, FDA - Payment: 100% TT