35 pieces/box; 40 boxes/carton 4-Ply Face mask MOQ: 50 cartons Color: White, Blue High quality non-woven materials complied with: - Level 3 ASTM F2100-19 -TYPE IIR EN 14683:2019 PM 2.5 ; ISO 9001:2015 ; ISO 10993 ASTM F2299; FM 650483 ; EN14683/ASTM 1862 Soft and comfortable ear-loops for easy wearing Specifically designed the inner of the face mask for maximum comfort Water resistant TEST RESULT BY NELSON CERTIFICATE Particle Filtration Efficiency (PFE) >= 99% (PM2.5 g/m3) Viral Filtration Efficiency (BFE) >= 99% Bacterial Filtration Efficiency (BFE) >=99% Delta P Differential Pressure: 4.1 mm H2O/cm2 Delta P Differential Pressure (Pa/cm3): 39 Flammability Class 1 Synthetic Blood: 160mm Hg (21.3 kPa) Microbial Cleanliness
