3M D3135 Secure Click P3 R Filter White Pack 20's3M D3135 Secure Click P3 R Filter White Pack 20's 3M D3135 Secure Click P3 R Filter 3M 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