Dual Cartridge Silicone Full Facepiece respirator. (Shown with 7584P100 cartridges) Silicone facepiece material conforms to facial features and doesn't harden with age. Silicone is easy to clean, extremely durable and resists distortion. Oral nasal cup reduces fogging and lessens dead air space, limiting re-breathing of exhaled air. Speaking diaphragm makes communication easy. 5-strap harness provides effective and comfortable facepiece-to-face seal. Chin cup helps to position facepiece properly. Neck strap allows wearer to park respirator when not in use. Hard coated polycarbonate lens provides an over 200° field of vision, protects the wearer's eyes and face against irritants, and has excellent optics. Meets ANSI standards for impact and penetration resistance. Sizes: Small/Medium/Large (ADULT SIZES ONLY)