The 3M™ Speedglas™ Heavy-Duty Breathing Tube SG-40W connects compatible welding headgear to a powered air-purifying respirator (PAPR) or supplied air system, allowing breathing air to flow from the air source to the welding helmet. Designed as a replacement breathing tube for demanding welding environments, its neoprene construction supports durability and flexibility while maintaining compatibility with multiple 3M™ respiratory systems.

Key Features

Heavy-duty construction: Neoprene construction is designed for demanding welding and industrial environments.
Air source connection: Connects compatible welding helmets to a PAPR or supplied air unit.
Self-adjusting design: Helps accommodate wearer movement while connected to the respiratory system.
Multiple system compatibility: Compatible with select 3M™ Adflo™, Versaflo™ PAPR and supplied air configurations.
Replaceable component: Allows the breathing tube to be replaced when worn or damaged to help maintain the respiratory system.

Intended Use

Designed to connect compatible 3M™ Speedglas™ welding headgear to an approved powered or supplied air respiratory system during welding and related industrial operations.

Welding
Grinding and sanding
Metal fabrication
Facility maintenance
Construction and heavy infrastructure

Product Specifications

Brand: 3M™ Speedglas™
Manufacturer Part Number: SG-40W
Product Type: Heavy-duty breathing tube
Material: Neoprene
Compatible Respirator: 3M™ Adflo™ Powered Air Purifying Respirator
Compatible PAPR Systems: 3M™ Versaflo™ TR-300, TR-600 and TR-800 Series
Compatible with 3M™ PAPR Systems: Yes
Compatible with 3M™ Supplied Air Systems: Yes
Compatible Welding Helmets: 3M™ Speedglas™ 9100 MP, 9100 FX-Air and 9100-Air
Product Series: 9000, 9000 HWR, 9100 FX-Air, 9100 MP, Speedglas™ 9100-Air, Fresh-Air III, Versaflo™ M-Series
Welding: Yes

Certifications and Standards

NIOSH Approved: Approved for use as part of specified compatible respiratory configurations.