3M™ Speedglas™ Welding Helmet Inside Protection Plate 900V/F is designed to protect the inside surface of the filter from spark and spatter. 3M™ Speedglas™ Welding Helmet Inside Protection Plate is a replacement part intended for use with 3M™ Speedglas™ Welding Helmet 9000V/F and 3M™ Speedglas™ Filters Utility. The helmets come in a variety of shapes and sizes and are geared towards your specific needs. They help to protect your eyes and face from radiation, heat and sparks, while providing a precise view of your work. 3M™ Speedglas™ Welding Helmet is sold separately.