3MR520-01-08R01 / 520-01-08R01 TUBE BREATHING SUPPLY 1EA/PK 3M™ Supplied Air Welding Helmet System Features a black impact-resistant helmet with inner faceshield. The flip-up welding sub-assembly allows for ease in moving facepiece up and away from the face. System includes helmet, air regulation valve and breathing tube. Meets ANSI Z87+ Standard for eye & face protection, Z89.1-2003 & Z89.2-2003 Standards for head protection.