During loading of bulk materials there will be dust emissions, which could even be harmful to the machines and the technical equipment. The high performance filter system from LISTENOW (Fig.) lead to a significant reduction of dust (less than 5 mg per normal cubic meter). According to application and use it can be selected between an Integral- or seperately mounted Scaveningair filter system. Both models are characterized by an especially robust design. They are responsible for the return of the captured dust to loading material. The maintenance of the cartridges is on the clean gas side. The filter control is adjustable according to requirements. The filtration devices are available in following sizes: 9, 14, 18, 24 or 30 m2 (special size to 56 m2).