The 3M Speedglas Welding Helmet, G5-03 Pro Air is designed for the versatile welder. Customizable airflow, an assortment of head covers, neck protectors, and shrouds, as well as an optional task light to allow better visibility of the work piece. G5-03 Pro Air auto-darkening filters (ADFs) all feature our Natural Color Technology. With the G5VC ADF, the welder can leverage variable color technology to view the weld while in dark state through either warm, cool, or natural color tones as different applications, lighting, and materials, may warrant different colors and contrasts. With the G5TW ADF, there is a tack welding mode that uses an intermediate shade 5 light state to help minimize eye strain during tack welding applications. If an arc is not struck within 2 seconds, the welding filter will switch back to the normal light state of shade 2.5.The 3M Speedglas G5-03 Pro-Air Welding Helmet, 45-0099-35, is approved for use with 3M Adflo, Versaflo TR-300+ and Versalflo TR-600 Powered Air Purifying Respirators as well as 3M Versaflo Vortex Supplied Air Valves.