Speedglas 9100V Welding Helmet from 3M is a high quality mask suitable for TIG, MIG and ARC Welders and is the leading welding mask for protection, comfort and durability, designed for continuous use in the harshest welding situations. 3M Speedglas 9100V Welding Helmet The Speedglas 9100V Welding Helmet from 3M's filter options include a grinding shade 3 and gas welding shade 5. The 9100V is made from a lightweight, but durable material that meets the mechanical strength requirements of EN 175 level. The comfort of the Speedglas 9100V Welding Helmet is the result of extensive research and development processes. It is possibly the most comfortable and protective welding helmet ever. For welders who keep their shield in the down position for prolonged periods of time, the build-up of carbon dioxide (CO2) behind the shield is greatly reduced compared to traditional shield designs