What is the correct way to determine the proper shade of filter lens for welding and cutting operations?

The appropriate method for determining the proper shade of filter lens for welding and cutting operations involves matching the shade to the specific type of welding or cutting being performed. Different welding processes emit varying levels of brightness and radiation, necessitating specific lens shades to protect the operator's eyes from harmful light and UV radiation.

For instance, the shade number is selected based on the intensity of the arc produced during the operation, with more intense arcs requiring darker lenses to provide adequate protection. This careful selection helps prevent eye damage and ensures safety during these often hazardous tasks. Thus, selecting the right shade based on the type of welding or cutting is essential for vision protection and overall safety in the workplace.