Welding screens are used by workers who weld close to other workers within a factory. The screens are usually attached to a frame, making them portable, and used to create a welding zone. They protect workers outside the zone by filtering damaging UV light. The screen can be fitted to a metal frame, using cable ties, or alternatively a welding curtain can be made for larger factories.
They are available in multiple sizes but can also make the welding screen to your specifications.
The main benefit provided is that other people within your vicinity are not exposed to damaging UV light, but it also creates privacy and prevents others from getting flash burn.