3M 4EFL6|L-901SG Welding Helmet With Wide View Faceshield

3M Speedglas L-901SG Welding Helmet with Wideview Faceshield (part number 4EFL6) is a Speedglas L-Series helmet designed to provide a broad, unobstructed view of the weld area through its Wideview Faceshield. Built for professional welding environments, the L-901SG pairs protective headgear with a wide-front shield to enhance peripheral visibility during welding tasks and setup work. The helmet is referenced in 3M’s Adflo powered-air respirator ecosystem as part of the L-901SG lineup, with replacement-part listings indicating compatibility with 3M Adflo systems for use in dusty or fume-prone environments. This model is designed to integrate with the L-Series shield system, delivering robust protection against sparks and impact while maintaining wearer comfort for extended use.