150/case, 47% Filtration Efficiency @.1 Micron per ASTM F2299. - To help wearers with sensitive skin, the Comfort veil is made from an ultra-soft, non-woven, hypoallergenic material. The veil is extra long (15") to provide freedom of movement and boasts the exclusive Comfort Band latex-free elastic headband. Fluid resistant to eliminate cross contamination. For a secure, comfortable fit, users simply manipulate the malleable nose strip that is ultrasonically welded into the fabric.