Welding Fume Extraction and LEV

• Use LEV at the point of welding for every welding task, every time.
• Position the extraction nozzle as close to the arc as practicable.
• Check the LEV system is working before starting any welding operation.
• Wear RPE in addition to LEV where fume exposure remains significant.
• Ensure LEV systems are examined and tested at least every 14 months.
• Use on-torch extraction where available for MIG and flux-cored welding.
• Increase extraction controls when welding coated, painted, or galvanised steel.
• Keep your head out of the fume plume even when extraction is operating.
• Report any reduction in extraction performance or damaged ducting immediately.
• Attend health surveillance including lung function testing when required.

• DON'T weld without LEV or RPE in place — general ventilation is not enough.
• DON'T position the extraction nozzle too far from the welding arc.
• DON'T assume mild steel welding fume is safe; it is now classified carcinogenic.
• DON'T block, kink, or obstruct LEV ducting or extraction hoses.
• DON'T rely solely on RPE when LEV extraction is reasonably practicable.
• DON'T weld on painted or galvanised surfaces without additional fume controls.
• DON'T switch off extraction to reduce noise or because it feels draughty.
• DON'T ignore symptoms such as coughing, breathlessness, or metallic taste.
• DON'T skip LEV maintenance inspections or ignore the 14-month test interval.
• DON'T eat, drink, or smoke in areas where welding fume may be present.

See also: Welding Safety Awareness (Comprehensive) | RPE Selection and Face Fit Testing