The exhaust arm consists of a swivelling, powder coated steel crane arm, with wall bracket and a flexible exhaust arm which consists of an interior self supporting parallelogram, and exhaust hood with damper. The exhaust arm can be brought into any position which can be kept without any additional support. The supporting frame is inside two rigid metal tubes with wear resistant flexible joints, diameter 150 mm.

The exhaust hood is rotatable by 360 degrees. Even if the welder is positioned laterally or behind the exhaust arm, the exhaust hood can be brought into the optimal position-lengthwise to the welding joint.