Lightest weight half mask respirator available. Initial cost is slightly more than disposable masks, but savings grow through reuse of facepiece. (Respirator can be disassembled, cleaned, and reused several times). Low profile design gives workers better visibility and permits comfortable wearing of safety glasses. Lightweight, soft facepiece makes this one of the most comfortable respirators available. 3 sizes available. NIOSH/MSHA approved. Designed to be used with 2000, 5000 and 6000 Series 3M cartridges, filters, adapters and retainers.