The AV-2000 Facepiece is interchangeable with Scott Health and Safety's full line of air-supplied, air-purifying and communications products. It has been tested as a respirator assembly to meet the requirements of NIOSH's CBRN SCBA and CBRN full facepiece APR standards. The AV-2000 includes a double lip design that provides positive pressure to the seal; a wide, soft design for user comfort; a thick seal lip that adds strength to the seal structure; and a broad, deep chin cup that allows greater contact. Available head harnesses include Kevlar, polyester and rubber. The AV-2000 is available in S-XL sizes.