This face seal is a replaceable spare part for the 3M Speedglas Welding Helmet 9100 FX-Air. 3M Speedglas Face Seal (for 9100 FX-Air), 26-0099-28/37267(AAD), Review Tagged on: 3M Personal Protective Equipment Personal Protective Equipment Safety & Security Tools & Home Improvement Welding Helmets LoneKing June 22, 2018October 15, 2018 Head Protection No Comments