Surgical Disposable Mask ASTM Level 3 (Bag of 10), Size: Regular

DemeTECH's Surgical Face mask is manufactured using the highest quality of American-made materials, and 100% manufactured in The United States. The DemeTECH Surgical Mask is rated ASTM Level 3; this mask provides the highest level of protection. ASTM LEVEL 3 Surgical Mask 1. Protective Layer The Blue outer layer ensures proper wear and provides high protection against fluids, high breathability, and excellent protection against airborne bacteria. 2. Filter Layer Provides at least 98% filtration against airborne particles and bacteria. 3. Inner Comfort Layer Enables wearers to wear masks for extended periods comfortably.   ASTM LEVEL 3 Technical Information Resistance to penetration by synthetic blood, measured in mm Hg  160mm Hg Differential pressure,  mm H20/cm2 (Breathability) <6.0 Bacterial  filtration efficiency ≥98% Sub-micron particulates  filtration efficient at 0.1 micron ≥98% Flame spread Class 1   ASTM LEVEL 3 How to properly wear Put your ma