The 3M™ Secure Click™ Full Facepiece Reusable Respirator FF-800 Series helps protect against certain airborne contaminants when used with approved 3M Secure Click filters and cartridges. This facepiece comes with exciting features that make it 3M’s next generation in comfort, breathability, and simplicity: - Say it: Speaking diaphragm is designed to help provide easy communication. - Hear it: Quick, simple cartridge/filter connection. Simply align the connections and push until you hear a click. Also, the Secure Click connection helps provide confidence that filters/cartridges are installed properly. - Feel it: Experience the breathability and comfort provided by the world’s first quad-flow gas and vapor filter/combination filter systems. - Check it: Easy, one-touch seal check helps provide increased worker confidence that the respirator is being worn properly. Recommended applicati