Experience the ultimate in half masks with the North 7700. Crafted from 100% medical grade silicone, this mask offers a wide sealing area for a perfect fit and unparalleled comfort. Its cradle suspension features woven straps, ensuring maximum mobility while maintaining support. Easily switch to PAPR or supplied air for added convenience.Features & Benefits: Converts to PAPR or supplied air respirator. Latex free. Lower headstraps stretch and move with the worker for more comfort without pulling on the facepiece. The benchmark in half masks designed to provide maximum comfort: fit and performance. Upper headstraps have minimum give to provide secure support. Various thickness in sealing area for improved comfort and support - more support around the chin area and more flexibility on the nose bridge. Wide: contoured sealing area for great fit. REPLACEMENT PARTS• 770016 - Inhalation Cartridge Connector• 770017 - Inhalation Valve Flap• 770018 - Exhalation Valve Flap• 770019 - Exhalation Valve Seat• 770020 - Exhalation Valve Guard• 770092 - Headband Assembly