Level 3 Path-O-Guard® Anti-Fluid EARLOOP FACE MASK-Richmond ( Limited Availability/allocation)Meets current ASTM 2100 standards for Level 3 surgical face masks: Bacterial Filtration Efficiency(BFE) : 98% Sub micron Particle Filtration Efficiency (PFE) at 0. 1 micron: 98% Differential Pressure: <5. 0 mm H2O cm2 Resistance to penetration by synthetic blood: 160 mmHg Flame spread: Class 1 Face mask pleats cover nose, mouth and chin for full protection 3 ply spun bound fabric provides comfort, filtration and excellent breath ability Soft aluminum