Facial Masks 21st Century

Made in Vietnam4 ply ProtectionComfortable Fit & Breathable ASTM F2100 - Level 3 - Professional Grade Guaranteed Quality Laboratory TestedPerformance You Can TrustBacterial Filtration Efficiency, ≥ 98 more→.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 Middle Barrier - Repels Liquid Breathable comfort with adjust nose bridge for a perfect fit.