North 7581P100 Organic Vapor Cartridge iss1 including those that contain oil based including those that contain oil based aerosols Organic Vapor Protection Helps protect against certain organic vapors Fits North APR face pieces No adapters needed 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 Cartridges without filters do not remove dust It fits all North Safety Air Purifying Respirators