Why extract welding fumes? Safety and advice
Welding is an essential technique in many industries. It makes it possible to join metals and create strong structures. However, the welding fumes generated during this process can be harmful to welders’ health. In this article, we will explain why extracting welding fumes is a crucial element in protecting welders, and how mobile fume extraction systems offer an effective solution for extraction at source.
Why are welding fumes dangerous?
Category 1 carcinogen: welding fumes contain many compounds that are potentially hazardous to health. These include hexavalent chromium, nickel, cadmium, lead and other heavy metals. These gases and particles are classified as category 1 carcinogenic emissions by the International Agency for Research on Cancer (IARC). Consequently, inhaling these fumes can have harmful long-term effects on the welder’s health. There is also a risk for people working nearby. Welding fumes can spread quickly through the workshop atmosphere and be inhaled by other employees. These people may also be exposed to high levels of noise, heat and intense light. It is therefore essential to adopt measures to protect welders and ensure their safety, as well as that of those working nearby.
Besides the cancer risks, welders are also exposed to various other hazards linked to welding fumes. These risks include respiratory tract irritation, lung problems, allergies, headaches, nausea and dizziness.
Fume extractors for effective extraction
BOFA range extractors: the mobile fume extractors in the BOFA – Donaldson range offer an effective solution for extracting welding fumes at source. These compact systems are designed to be used directly at the welding station. They therefore capture particles at the point where they are generated. BOFA extractors incorporate high-quality filters that capture fume and dust particles, as well as potentially hazardous gases, ensuring effective filtration.
Our range of extractors includes two types of system: the “T” model extractors, designed specifically for high-pressure/low-airflow welding processes, and the “V” model extractors for low-pressure/high-airflow electronics processes. BOFA extraction systems are equipped with advanced technologies, such as three-stage filtration, an advanced airflow design and a filter status display, which help maintain a clean working environment and high productivity.
“Spark arrestor” extraction units: a solution to fire risks
In addition to fume extractors, BOFA offers a range of “spark arrestor” products. These devices are designed to minimise the risk of fire during welding, by preventing sparks and hot particles from entering the filtration system. This ensures safe use, even when welding flammable materials!
What criteria should you use to choose a system for extracting welding fumes?
When choosing a system to extract welding fumes, several criteria must be taken into consideration:
The size of the extractor
The first consideration should be the size of the extractor relative to the workshop or welding area. A fume extractor must be powerful enough to capture the fumes generated effectively. It is crucial to take into account the size of the area to be covered in order to ensure adequate extraction at source.
Capacity and flow rate
Make sure the extractor has the capacity and airflow needed to handle the volume of fumes produced by welding operations. Different welding processes generate varying amounts of fumes, so choosing a system with the appropriate capacity will ensure effective extraction.
Noise level
The noise level of the extractor is an often overlooked but important aspect. A quieter working environment contributes to welders’ comfort. Consider extraction systems that deliver optimal performance without generating excessive noise, thereby improving working conditions.
Ease of maintenance
Choose extraction systems that require simple, quick maintenance. Filters should be easy to replace, and filter status indicators are a valuable advantage for maintaining effective filtration without prolonged downtime.
Practical tips for choosing your fume extraction
Intensive welding workshop
If your workshop is characterised by intensive welding production, it is advisable to invest in extractors from BOFA’s “T” range. They are designed for high-pressure/low-airflow processes. These extractors offer robust performance and effective filtration, suited to intensive welding environments.
Environment with demanding air quality requirements
For workshops where air quality is an absolute priority, BOFA extractors featuring three-stage filtration technology (pre-filter, HEPA filter and activated carbon filter) can be the ideal solution. These systems guarantee optimal capture of fume particles, dust and odours, thereby ensuring purified air in the working environment.
Workshop with space constraints
If space is limited in your workshop, compact BOFA extractors may be the best option. The “V” range can suit welding processes while making the best use of the available space.
In conclusion, welding fume extraction is essential to protect welders’ health and reduce the risks linked to exposure to the carcinogenic and irritant substances present in fumes. Mobile dust extractors offer an effective solution for source-capture extraction, ensuring safer, healthier use at the welding station. Protecting welders is a priority, and BOFA extractors are a trusted ally in achieving this goal.