ProFi-Clean The ProFi-Clean 250 is a compact de-dusting and filtering device with an automatic blow-back system. It allows the filtering and separation of powder particles in the extracted air which may occur during the grinding and filling process. The de-dusting filter is cleaned automatically by pressure impulses. This guarantees that the whole cartridge surface area remains clog-free and the powder is blown-back into the product. It's use is particularly relevent when large quantities of exhausted air produced. The blow back airflow can be precisely controlled by a proportional valve. Offering a unique and compact construction, the stand-alone de-dusting filter is easily integrated in existing and new process plants.