3MR6300 / 6300 RESPIRATOR 6000 SERIES HALF MASK SZ Half Facepiece 6000 Series, Reusable When combined with the 3M™ Filters 2000 Series or 3M™ Cartridges 6000 Series, this respirator is one of the lightest reusable respirators available. It's cost-effective and can be washed and reused many times. The 6000 is lightweight with easy-to-adjust headstraps. A low-profile design for better visibility allows safety glasses to be worn. Very easy to use -no retainer or extra parts needed to attach the filters/cartridges to the facepiece. NIOSH approved. See following page for cartridges and filters.