The compact, powerful and robust wet / dry vacuum cleaner is equipped with a unique and highly efficient, fully automatic filter cleaning system that enables the suction of large amounts of fine dust without interruption of work with a constant high suction power. The device is grounded through the antistatic system up to the suction hose connector, including electroconductive accessories for the reduction of electrostatic charges with dry dust. Power tools can be connected to the built-in socket with stand-by function. Equipped with infinitely variable speed regulation and an integrated accessory receptacle on the device for safe and easy transport. The complete vacuum cleaner is equipped with accessories for dust class M. It can also be used as a wet vacuum cleaner for sucking liquids.