This Auto-darkening helmet is of classical design, excellent ergonomic structure, comfortable and convenient to use. Light weight shell with comfortable head gear offers ample mask space and superior face, head, neck & ear protection. The shell is made of special nylon which is strong and can well withstand operating welding temperature. High quality multilayer interactive filter provides clear view and permanent UV/IR protection up to DIN13. An external shade adjustment knob enables operator to select between DIN9 to DIN13. Step less Delay and Sensitivity can be adjusted by the user from inside for easy and comfortable operation. This helmet is suitable for all position MMA, MIG/MAG & TIG welding.