The 3M™ Versaflo™ M-407SG Welding Helmet Assembly delivers advanced protection and all-day comfort for welders and metalworking professionals operating in high-hazard environments. Featuring a flame-resistant shroud and integrated Speedglas™ welding shield, this helmet is designed to safeguard against head, eye, face, and respiratory hazards when paired with an approved air source. With a 10% weight reduction and a significantly larger viewing area compared to legacy L-Series welding helmets, the M-407SG enhances mobility and visibility without compromising safety. It is compatible with the Speedglas™ 9100XXi Auto-Darkening Filter (ADF) and works with Adflo™, Versaflo™, and supplied-air respiratory systems to form a complete, NIOSH-approved PAPR solution.

Key Features

Flame-Resistant Shroud and Helmet Cover: Designed for heavy industrial and welding environments where protection from sparks, spatter, and arc flash is critical.
Integrated Speedglas™ Welding Shield: Accepts 9100-series Auto-Darkening Filters for clear visibility and reliable eye protection during welding.
Larger Viewing Area: Offers expanded visual field compared to the 3M™ L-905SG, improving situational awareness and precision during detailed tasks.
Lightweight, Balanced Design: 10% lighter than previous models for reduced neck strain and improved comfort during extended use.
Liftable Visor Functionality: Enables quick communication or inspection without removing the entire helmet in non-hazardous zones.
All-in-One Head Protection: Guards against impact (ANSI Z89.1), airborne contaminants, and optical radiation when used with a NIOSH-approved air source.
Multi-System Compatibility: Works seamlessly with 3M™ Adflo™ PAPR, Versaflo™ TR-600 and TR-800, 3M™ Supplied Air, and V-Series air sources.

Intended Use

Built for welding professionals, metal fabricators, and heavy industrial workers exposed to airborne particulates, high temperatures, or arc flash risks, the M-407SG provides integrated protection and visual clarity in high-demand settings.

Ideal for MIG, TIG, GMAW, plasma cutting, grinding, and arc gouging operations
Suitable for metal fabrication shops, steel mills, shipyards, and repair facilities
Recommended for teams using PAPR or supplied air in hot, dusty, or confined workspaces
Supports respiratory protection protocols and high-visibility welding workflows

Product Specifications

Manufacturer Code: M-407SG
3M ID / SAP ID / : 7100168651
UPC: 00051131373433
Headgear Type: Helmet with shroud and welding shield
Material: Leather (shroud), polycarbonate visor, high-impact helmet shell
Weight: 4.4 lb / 1997.6 g
Color: Black
Visor Type: Clear premium visor (with flip-up welding shield)
Compatible With: 3M™ Adflo™, 3M™ Versaflo™ TR-600 / TR-800, 3M™ Supplied Air, 3M™ Speedglas™ 9100XXi ADF
Packaging Format: 1 per case

Certifications and Standards

ANSI Z89.1 Type I, Class G: Certified industrial head protection
ANSI Z87.1 (Z87+): Meets requirements for eye and face protection
NIOSH Approved: When used with certified powered or supplied air systems
Flame Resistance: Shroud tested to ASTM D2859-96
Enables employers to meet welding and respiratory protection compliance under OSHA 1910.134 and CSA Z94.4 standards.