The device has a remote control unit (9) controlling and monitoring a motor unit (10) based on commands, which are transmitted by a mobile communication terminal (14) through a long-distance data transmission. The motor unit is operated directly or indirec...

The device comprises a matrix of jet nozzles (5), which is behind a filter or in the filter. The filter opposite to the normal operating intake-air flow direction is impinged with a gaseous substance of a defined pressure or automatically touches a mechani...