All welding fume is now treated as carcinogenic by the HSE, so extraction and RPE are required for most tasks. A layered approach keeps exposure low while maintaining visibility and movement at the bench or on site.

Capture at source first

Position on-torch or hood extraction within a few centimetres of the arc, and set airflow to overcome cross-draughts without disturbing the shield gas. Adjust arms or hoods as the workpiece moves and keep ducts and filters clean to maintain capture performance.

Choose appropriate RPE

For many welding tasks, powered RPE integrated into welding helmets helps maintain consistent protection with low breathing resistance. Where tight masks are used, ensure P3 filters, a good seal and strict face fit testing, and switch to powered options if seals are frequently compromised.

Manage the bay air and housekeeping

Use air cleaners or negative pressure in enclosed bays to prevent fume migration. Vacuum surfaces regularly to avoid re-agitation and never use compressed air. Coordinate extraction with screens and bench layout so fumes are not drawn past the breathing zone.

Verify and maintain

Check fume capture with smoke tests, confirm RPE airflow or seal daily, and keep a short record of filter changes and arm adjustments. Review readings from a simple particulate or fume monitor after changes to layout or process.

Practical takeaways

• Use WFE close to the arc and keep it adjusted as you work.
• Integrate respirators with welding helmets to maintain comfort and protection.
• Control bay airflow and clean surfaces to stop re-exposure.
• Fit test tight masks, or move to powered options where seals are unreliable.
• Verify performance with quick smoke checks and periodic monitoring.

Combining local fume capture, bay-level air management and suitable RPE keeps exposure low and consistent, supporting both compliance and weld quality.