Anyone who operates vehicles in environments with high levels of pollutants must ensure that the operator of the vehicle is supplied with clean breathing air. The Wölfe company has 30 years of experience with protective ventilation and dust filter systems and our systems meet all the requirements of BG Bau (DGUV Information 201-004 formerly BGI 581).With our systems you have a suitable solution for every application, which offers the operator a safe workplace and guarantees the operator cost-effectiveness in use.