The high-performance MSA filters provide strong protection against a wide range of toxic gases and particles in full accordance with the latest standards. MSA’s PlexTec particle filter technology increases filtering surface for easier breathing. Benefits for the user include: safe selection, no mix-ups, economical procurement, simpler stock keeping. Available in gas filter classes 1 or 2, and particles classes 2 and 3, in single or multiple gas range. They are using the standard threaded connection EN148-1 and are compatible with all available facepieces equiped with the same thread.