Comfortable, cool, and breathable.Stretchable earloops provide a personalized fit and make it more convenient to use.ASTM F2100-11 - Level 1 Barrier.Fluid Resistance: ASTM F1862 at 80 mm Hg.BFE in excess of 98%.Delta-P: Less than or equal to 2.5Flammability: Class 1.Single UseNot Made with Natural Rubber Latex.Packaged: 50 Per Box, 10 Boxes Per Case