Patriot Mask Molded N95 Respirator - Small Key Features: Size: Small Meets NIOSH inhalation procedure testing TEB-APR STP 0007. 99 % BFE (Bacterial Filtration Efficiency) according to ASTM 99.7% Filter Efficiency according to ICS Laboratories Inc. Berry Amendment (10 U.S.C. 2533a) compliant. Pre-formed for secure fit and for easy breathing. Bendable nose clip will help provide custom fit and secure seal. Available in Small and Regular Latex free: Yes Model: Collapse Resistant Cup/Procedure (Surgical Pending) Material Composition: Outer Layer: Spun bound cloth/non woven fabric (Teal) Filter: Melt blown non woven fabric (2 layers) Inner Layer: Needle punch cotton Nose Clip: 1 mm thick metal Nose Foam: Spandex filament sponge bar Headband: Nylon