3M ABEK1P3R + Formaldehyde Combination Filter for 6000 Breathing Masks 3M A2P3R Combination Filter for 6000 Breathing Masks 3M A1P3R Combination Filter for 6000 Breathing Masks Optrel Particle Pre-Filter for Swiss Air Dräger Bayonet X-plore A2P3 R D Combination Filter Optrel TH3P Main Particle Filter for Swiss Air JSP Filter A2P3 with Press-to-check Function Replacement Filters FFP2 (Double Pack) JSP pre-filter for PowerCap Active IP