Question

safety glasses
resemble ordinary glasses, but the lenses are made of hardened glass or plastic.
goggles
protect the area around the eyes against chemicals, liquids and dust.
over - spectacles
protect the ordinary spectacles against damage.
face visors
protect the entire face, when needed.
welding helmets and visors
protect the eyes against ultraviolet and infrared radiation.
safety glasses should be replaced:
when vision is impaired.
when the glasses are damaged.
what is commonly used for eye protection?
welding helmet / visor
goggles
over - spectacles
safety glasses
face visor
sunglasses

Explanation:

The text lists various eye - protection items such as safety glasses, goggles, over - spectacles, face visors, and welding helmets/visors. Sunglasses are not mentioned in the text as commonly used for eye protection in the given context.

Answer:

Welding helmet / visor, Goggles, Over - spectacles, Safety glasses, Face visor