SUP767000 / 767000 OPTIFIT FULL FACE RESPIRATOR MEDIUM Opti-Fit™ Respirator The Opti-Fit™ full face respirator has an exceptional view with a new state-of-the-art lens. It offers a durable silicone skirt and is comfortable to wear. The Opti-Fit™ has a standard nosecup feature to prevent fogging. Easy to maintain and service. Replaceable lens treated with anti-scratch coating. NIOSH approved. Uses either 7000 Series or standard threaded cartridges.