What measure helps reduce exposure to fumes during welding?

• A. Wearing flip-flops while welding.
• B. Increasing shielding gas flow.
• C. Use local exhaust ventilation and fume controls.
• D. Welding in a well-ventilated area without any controls.

Answer: (C)

Controlling fumes at the source with local exhaust ventilation and fume controls is the most effective way to reduce exposure during welding. This approach captures fumes right where they are produced, pulling them away from the welder’s breathing zone and filtering or exhausting them from the workspace. By removing contaminants before they enter the breathing air, it helps meet occupational exposure limits and protects health. The other options don’t address the source of fumes: wearing flip-flops is unsafe for many reasons and doesn’t affect fume exposure; increasing shielding gas flow changes the arc environment but does not remove fumes from the air; welding in a well-ventilated area without dedicated controls may help, but fumes can still accumulate if capture and filtration aren’t in place.