3M D3128 Secure Click P2 R Filter3M Secure Click Particulate Filter P2 R D3128 is CE approved for environments containing certain particles. Our filter can also be used for nuisance level organic vapour relief and for ozone protection up to 10 x WEL. New dual flow cartridges and filters allow for easier breathing Protects against particulates with nuisance level organic vapour acid gas relief Protection against ozone up to 10 x Workplace Exposure Limit Quick, simple connection.