The Forney PRO series of auto-darkening welding helmets include four optical arc sensors, supplying extra protection against arc flash. The viewing area is 10.44 sq. inches and features Arc Optics technology, providing a crisp and clear view of your welds. The headgear is heavily padded for increased comfort, making them perfect for professionals who weld for extended periods of time. These welding helmets are more functional and comfortable than basic auto-darkening welding helmets. Ideal for experienced and professional welders or fab shop workers.