What should you always use on your face during welding or cutting?

The use of protective safety glasses with a full face shield or helmet during welding or cutting is crucial for several reasons. First, welding and cutting processes produce intense light and heat, which can cause severe eye injuries such as burns or damage from the ultraviolet and infrared radiation emitted by the welding arc. Regular sunglasses do not provide adequate protection against these hazards as they're not designed to filter out the specific wavelengths produced during these processes.

Additionally, while a mask alone may offer some protection for the respiratory system, it does not shield the face or eyes from flying sparks, molten metal, or other debris that can occur during welding or cutting. Standard reading glasses provide minimal protection as they are not constructed to withstand the conditions present in welding environments.

Using protective safety glasses combined with a full face shield or helmet ensures comprehensive coverage for both the face and eyes. This combination protects against heat, sparks, and harmful rays, thus reducing the risk of serious injury while performing welding or cutting tasks.