Experience the breathability and comfort of 3M Secure Click Particulate Filters which provide protection against a wide range of dusts, mists and other particles. The 3M Secure Click connection style enables a quick, simple connection of the particulate filters. Simply align the connections on the facepiece and filter and push until you hear a click. The innovative Secure Click connection helps provide wearers confidence that the filters are installed properly. They are NIOSH approved for use with 3M Secure Click Reusable Respirators HF-800 Series and FF-800 Series.The innovative 3M Secure Click platform features a quick, simple cartridge/filter connection. It works just like a seat belt. Simply align the connections and push until you hear a click and feel confident that filters are installed properly. Two dual-flow filters on each respirator combine to create four airflow paths in the world’s first quad-flow cartridge/filter system, providing great breathability and comfort. Swept back filter design offers compatibility with certain welding and grinding shields. 3M Secure Click Particulate Filters are NIOSH-approved for use with 3M Secure Click Reusable Respirators HF-800 and FF-800 Series and provide protection against a wide range of dusts, mists and other particles. 3M Secure Click Particulate Filters D9000 Series are encapsulated in hard plastic cases to help protect them from damage, dirt, decontamination spray showers, debris, sparks and high temperatures. Use for a variety of applications such as grinding, sanding and welding. Do not use in environments that are immediately dangerous to life or health (IDLH). Help protect your workforce: 3M offers a free online tool to help you select the appropriate respirators, cartridges, and filters for your workplace respiratory hazards and contaminants and help determine cartridge change-out schedules. 3M Select and Service Life Software (www.3M.com/sls) contains more than 700 different chemicals and provides documentation of your choices. 3M Secure Click Particulate Filters are NIOSH-approved and are designed to help filter a broad range of oil and non-oil based airborne particulate contaminants when used with half and full facepieces. These filters help provide respiratory protection from particulate contaminant concentrations up to 10 times the OSHA Permissible Exposure Limit (PEL) with half facepieces and up to 50 times the OSHA PEL with quantitatively fit tested full facepieces. Some models include nuisance level organic vapor and/or acid gas relief. Not for use in environments that are immediately dangerous to life or health (IDLH) or contain hazardous levels of organic vapors and/or acid gases (except hydrogen fluoride on certain models). 3M Secure Click Particulate Filters are not for use in environments that are immediately dangerous to life or health (IDLH). Change 3M Secure Click Particulate Filters when they become dirty, damaged, or difficult to breathe through.