Bacterial Filtration Efficiency (BFE) - ASTM F 2101 > 99%
Splash/Fluid Resistance 160 mmHg ? ASTM F1862
Low Breathing Resistance (Delta P) - MIL-M-36954C
Flammability (Class 1) ? 16 CFR Part-1610
Expiry: Use within 3 years of manufacturing date Usage: Extend over face, press nose clip in position, affix ear loops in position Warnings: Discard after 8 hours continuous use