Level 3 Disposable Mask (Meets ASTM F2100-19 Level 3 Requirements) Features : 3 layers of protection, fluid repellent Construction : Non-woven fabric, melt-blown fabric, ear-loop and metallic strip. Grade : Medical BFE: >99.5% PFE: >99.2% Flammability: Class 1 Synthetic Blood Penetration: 160mmHg Color : Light Blue Mask Dimensions: 173mm x 93mm