Level I Earloop Face Mask | Richmond Dental & Medical
Quality Level I Earloop Face Mask. Meets current ASTM-2100 standards for Level 1 face masks: Bacterial Filtration Efficiency(BFE) : ≥95%; Sub-micron Particle Filtration Efficiency (PFE) at 0.1 micron: ≥95%; Differential Pressure: <4.0 mm H 2 O/cm 2; Resistance to penetration by synthetic blood: 80 mmHg; Flame spread: Class 1