Using the standards of the N95 mask as a baseline,

Using the standards of the N95 mask as a baseline, the Navy Clothing & Textile Research Facility (NCTRF) developed the laboratory evaluation protocol for these non-medical face coverings. The yarns used to construct the 3D knitted face coverings are evaluated for comfort and filtration efficiency and the designs are assessed for durability. The Navy Exchange Service Command (NEXCOM) is comprised of 14,000 personnel worldwide facilitating six business lines, NEX retail stores, the Navy Lodge Program, Telecommunications Program, Navy Clothing and Textile Research Facility, Ships Store Program and the Uniform Program Management Office. (U.S. Navy photo by NEXCOM Public Affairs/Released)