Safety & Pollution Prevention (SP/2) Welding Practice Test

Respiratory protection is a last defense for fumes and gases. In welding, the safest approach is to first use engineering controls like local exhaust ventilation or enclosure to remove or dilute fumes at the source. If those controls can’t bring exposure to safe levels, or if conditions are temporary or unpredictable, then administrative controls and safe work practices come next to minimize exposure. Respirators protect the wearer but rely on proper selection, fit, maintenance, and correct use, and they don't remove contaminants from the work environment for everyone. Because of these limits, they should be relied on only after other controls have been considered or implemented.