One replacement face sealNatural ColorColour Technology Both of the new G5-01 auto-darkening welding filters (ADFs) feature the popular 3M Speedglas Natural Color Technology for more realistic color in the light state. And the G5-01VC (Variable Color) model lets users select a warm, standard, or cool color preference. Adjustable air flow With the helmet’s new duct system, users can direct the airflow to either their face or visor, as well as the amount of air coming from the top outlet vs. the two side outlets. With greater control over personalized settings, users can balance the airflow’s cooling effect while minimizing flows that might dry out their nose or eyes. Comfortable and protective Designed for heavy-duty, high amperage welding and grinding, the flip-up G5-01 welding helmet connects to the 3M™ Adflo™ Powered Air Respirator to provide class TH3 respiratory protection. 3M™ Speedglas™ Heavy Duty Welding Helmet G5-01 with welding filter G5-01VC and 3M™Adflo™ High Altitude Powered Air Respirator and carry bag ADF Dark State Shades Variable Dark Shade 8-14 Air Source PAPR Battery Life ADF up to 1500 hours, Turbo: approx. 7-9 hours Battery Type ADF: Lithium 3V (CR2450), Turbo: Lithium-ion Brand Speedglas™ Features Flip-up solution, Respiratory Protection Filter Type Particle Filter Light State Shade 3 Number of Sensors 4 Product Series Speedglas G5 Switching Time (Light-Dark) 0.1 ms @ 23°C UV/IR Protection Shade 14 (permanent) Welding Process Most types of arc welding, arc detection down to 1 amp TIG, grinding.