How to Control Welding Fume and Its Associated Hazards?

There are two primary methods for controlling welding fumes and hazardous gases at the transmission stage: general ventilation and local exhaust ventilation (LEV).

General ventilation, also known as dilution ventilation, works by introducing clean air to dilute the concentration of harmful substances in the air, keeping them below occupational exposure limits. Simultaneously, contaminated air is continuously discharged outdoors or collected and purified. General ventilation can be classified into natural ventilation and mechanical ventilation. In many countries, natural ventilation is used for outdoor or open-space welding, while mechanical ventilation is adopted for indoor welding. Axial fans installed on walls or ceilings help expel welding fumes from the workshop or circulate the air through purification systems for internal reuse, effectively reducing fume concentration while minimizing energy loss—a method widely adopted internationally.

Advantages of BONRXIN Fume Purification Solutions

1. Highly mobile, allowing flexible deployment across the workshop without being limited by fixed emission points.

2. Equipped with swivel casters for easy positioning and relocation.

3. Efficient purification: At rated airflow, the filtration efficiency for welding fumes is ≥99%. The filtered clean air can be safely recirculated within the workspace.

4. Cartridge filter system: Uses imported German PTFE-coated filter material for high efficiency, long service life, and reduced replacement costs.

5. Built-in automatic pulse-jet cleaning system keeps airflow and filtration performance consistent. (Optional)

6. Stable control system with integrated high-voltage leakage protection.

7. Flexible extraction arm: Can hover in 3D space and rotate 360° to reach any fume source.

8. Customizable hoods available for different operating environments.

9. Noise and vibration dampening ensures quiet operation and compliance with acoustic safety standards.

10. Simple operation and easy maintenance, suitable for daily industrial use.

11. Supports both single-point mobile extraction and multi-station centralized fume collection.

12. Custom development available upon request, tailored to client needs.