3M™ Speedglas™ Welding Filter 9100 Series continues 3M’s tradition of outstanding optical quality, including uniform shading and minimal distortion across the entire filter viewing area. This helmet includes the 3M™ Speedglas™ Auto-darkening Filter 9100V with a viewing area of 73 mm x 107 mm. The special 9100XXi silver front panel houses external controls, enabling fast and easy access to the grinding and memory modes. With 3M™ Speedglas™ Natural Colour Technology, the 9100XXi welding filter allows you to recognise colours more readily. Great clarity before, during and after welding is assured.