To clean your welding lens, start by removing it from the welding hood. Next, take a soft cloth or microfiber towel and dip it in a cleaning solution. You can moisten the cloth with warm, soapy water or a specialized lens cleaning solution. Make sure to rub down both sides of the lens until you’ve removed all signs of debris. After cleaning, make sure the lens is completely dry before reassembling it back into the welding hood.