Welding helmets provide full protection of the wearer's eyes and face. A broad range of design variations and accessories are available for optimal visibility and comfort. Auto-darkening lenses automatically adjust to prevent damage due to infrared and UV radiation. Replacement cover plates, headgear, retainers and spider clips are available for maintenance and repair. Assemblies and kits contain multiple components for simple part replacement and upgrades. Adapters, additional cover plates, shields and sweatbands help to ensure proper safety while welding.