The Top Three Welding Fume Factors to Consider

We’ve put together the top three welding fume factors to consider to help keep the workplace pollution-free when welding. In this blog, we look into what you need to consider to be HSE-compliant when welding in the workplace.


The visible part of the welding fume cloud is formed from predominately metal particles, metal oxide and flux (if used), whilst the exact level of risk from the fume will depend on three main factors: 


The toxicity of the fume varies depending on the welding process and the materials being used to weld and being welded. 


The plume of fumes generated from the welding process the ones that rise from the welding point. By having local exhaust ventilation (LEV) at-source, or as close as possible to the welding point reduces the risk of fumes dispersing into the workplace, find some examples here.


It all depends on how long a member of staff is welding for. Some welders weld for a couple of hours a day, whilst others weld all day. The longer the arcing time, the more fumes are being produced, which in turn, raises the risk of airborne fume.


Fumes given off during welding and hot cutting processes is a various mixture of airborne gases and very fine dust particles, which if inhaled, can cause ill health. Gases that can be found from the processes may include: 

  • Nitrous Oxide (NOx)
  • Nitric Oxide (NO)
  • Nitrogen Dioxide (NO2)
  • Carbon Dioxide (CO2)
  • Carbon Monoxide (CO)
  • Shielding Gas (e.g. Argon)
  • Helium (He) and;
  • Ozone (O3)

To find out more about the safest way to safely capture and remove welding fumes from the workplace and the rules and regulations around local exhaust ventilation (LEV), get in touch with industry specialists today to arrange a free site survey. We have a range of different solutions that can help you to provide an HSE-compliant and pollution-free workplace. Contact us via email, or call us today for a no-obligation discussion on +(0)1942 267444; in addition, keep in touch with us on our social media channels: FacebookTwitter or LinkedIn for updates.

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