Features:1. It can efficiently get rid of the toxic gas generated throughout welding and ensure the fitness of the staff2. Equipped with a unique again cover, which are linked to a 10cm diameter PVC air duct, and the filtered fuel would be processed as required, which is extra environmentally friendly!3. High-performance fan with adjustable perspective and coffee noise4. It is simple and quick to switch the filter5. The clear out is fabricated from special foam plastic and diffused activated carbon, which has excessive suction and flux absorption performance6. The complete formulas is manufactured from anti-static conductive materials