Welders are at risk of permanent ear damage if particles
of hot slag enter their ear canals. Hot slag can burn their
ear drums and lead to ear infections, hearing loss, ringing
in the ears, and balance problems. These painful burns can
take a very long time to heal properly. In some cases, surgery
may be needed. Welders often overlook wearing earplugs not
only for hearing protection but also for protection against
hot slag.
Safe work practices: 
- Wear a full-face welder's helmet to protect your ears
— as well as eyes and face — against particles
of molten metal.
- Use foam or silicone custom-molded earplugs for protection
against both hot slag and noise.
- Make sure your cotton welder's cap covers your ears
for added protection.
- In addition to ear protection when welding, wear flame-resistant
work clothing, gauntlet gloves of leather or other suitable
material, a leather apron for heavy work, and safety footwear.
