21st Century
Protective Face Mask, ASTM F2100, Single Use Disposable Masks, 50 Masks, 5-10 ct Packs
Made in Vietnam4 ply ProtectionComfortable Fit & amp; Breathable & nbsp;ASTM F2100 - Level 3 - Professional Grade & nbsp;Guaranteed Quality Laboratory TestedPerformance You Can TrustBacterial Filtration Efficiency, ≥ 98.8%Particulates Filtration Efficiency, ≥ 98%Differential Pressure, 32 mm H20/cm2Resistance to Penetration, @160 mmHgFlame Spread, Class IOuter Barrier - Repels LiquidFace Barrier - Absorbs LiquidInner Barrier - Repels Liquid & nbsp;Middle Barrier - Repels Liquid & nbsp;Breathable comfort with adjust nose bridge for a perfect fit. & nbsp;