3M Face seal is a replacement part for the 3M Speedglas welding helmet 9100 MP. 3M Speedglas Face Seal for 9100 MP, 27-0099-28 Review Tagged on: 3M Personal Protective Equipment Personal Protective Equipment Safety & Security Tools & Home Improvement Welding Helmets LoneKing July 7, 2018October 15, 2018 Head Protection No Comments