Conventional welding helmets contain dark face plates to prevent this exposure.
He dons a welding helmet and starts killing crew members before infecting a man named Ashton.
The modern welding helmet used today was first introduced in 1937 by Willson Products.
Most welding helmets include a window covered with a filter called a lens shade, through which the welder can see to work.
Some of the early versions of this apparatus were built into welding helmets, and used for welding.
All welding helmets are susceptible to damages such as cracks that can compromise the protection from ultraviolet and infrared rays.
Goggles and welding helmets with dark UV-filtering face plates are worn to prevent this exposure.
Common causes include welders who have failed to use adequate eye protection such as an appropriate welding helmet or welding goggles.
The company is known for its award winning welding helmet Speedglas, owned by the American company 3M.
Protective helmets such as a welding helmet restrict vision to an extremely small slot or hole, with no peripheral perception at all.