3M D9038 Secure Click Particulate Filter with Hydrogen Fluoride and Nuisance Level Organic Vapour and Acid Gas Relief Hard Case P3 RCode: 752034000 3M Secure Click Particulate Filter with Hydrogen Fluoride and Nuisance Level Organic Vapour and Acid Gas Relief, Hard Case, P3 R, D9038 Size: 109. 2 x 65. 2 x 37. 5MM Each CE approved for environments containing particulates Hear it: Quick, simple cartridge connection. Simply align the connections and push until you hear a click. Use with CE approved 3M Secure Click Facepieces Feel it: Dual flow filters allow for easy breathing