North 7581P100 Organic Vapor Cartridge iss1 Spring loaded front snap closure Spring loaded front snap closure Features and Benefits Designed to fit all faces comfortably: and accommodate the user’s facial movements Multilayered absorption media with a smooth inner lining for added comfort Latex free woven head straps are welded for a secure fit Concealed: adjustable nose clip and soft foam nose cushion provide a custom secure seal Humidity and moisture resistant filter media that repels moisture for a longer lasting respirator Reliable: durable design that lasts throughout the workday One line of cartridges and filters will simplify your inventory It fits all North Safety Air Purifying Respirators