3M D3135 Secure Click P3 R Filter3M Secure Click Particulate Filter P3 R D3135 is our CE approved filter for environments containing certain particles. New dual flow cartridges and filters allow for easier breathing Protects against particulates Quick, simple connection. Simply align the connections and push until you hear a click Use with 3M Secure Click Reusable Respirators 800 Series Swept back design allows an enhanced field of view and comfort Use for protection in hazardous