Welding is essential in many industries—but did you know that welding fumes are classified as hazardous substances in Australia? Since 2017, Safe Work Australia and the World Health Organization (WHO) have classified welding fumes as a Group 1 carcinogen, meaning they are proven to cause cancer in humans. This makes understanding welding fume classifications critical for workplace safety and compliance.
What Are Welding Fumes?
Welding fumes are a mixture of airborne gases and fine metal particles generated during welding. Depending on the materials and processes, they may include:
- Iron oxide
- Zinc oxide
- Aluminium oxide
- Nickel
- Chromium (VI)
- Copper
- Lead
These substances pose significant health risks, including cancer, lung damage, and metal fume fever.
How Are Welding Fumes Classified in Australia?
In Australia, welding fumes are regulated under the Model Work Health and Safety (WHS) Regulations as hazardous chemicals. Classification depends on:
- Chemical composition – from base metals, coatings, fluxes
- Level of exposure – duration, frequency, and airborne concentration
- Welding process – MIG, TIG, Stick, Flux-core, etc.
Under WHS, employers must assess the risks, control exposure, and provide adequate protection for workers.
Risk Management – What You Must Do
- Assess the Risk
Use the Safe Work Australia Hazardous Chemical Information System (HCIS) to identify and classify welding fumes based on your materials and processes. - Install Proper Ventilation
Local Exhaust Ventilation (LEV): Fume arms, extraction hoods, or inline duct fans
General Ventilation: Wall exhaust fans, centrifugal roof fans
Make-Up Air: Prevent negative pressure when using extraction - Provide Adequate PPE
- Respiratory Protection: P2 filters at minimum, PAPR systems for high-risk environments
- Combine PPE with proper ventilation for maximum safety
- Health Monitoring
Jobs involving Chromium (VI) or Nickel may require ongoing health checks under WHS regulations. - Training & Documentation
Maintain risk assessments, training logs, and ensure all workers understand welding fume hazards.
How Fanmaster Can Help
At Fanmaster, we supply industrial-grade fume extraction and ventilation solutions designed for welding environments, including:
✅ Inline Duct Fans – Ideal for ducted systems removing fumes at source
✅ Wall-Mounted Extraction Fans – Perfect for workshops
✅ Centrifugal Roof Fans – For large-scale ventilation
✅ Fixed & Portable Fume Extractors – For welding bays or mobile applications
Contact us today to ensure your workshop meets safety regulations and protects your workers.
📞 1300 900 345 | 🌐 fanmaster.com.au
Conclusion
Welding fumes aren’t just unpleasant, they’re regulated hazards that can cause serious health issues. By understanding welding fume classifications and implementing the right controls, you can protect your team and stay compliant.