Abstract: The present invention provides a mobile filter cleaning system allowing movement to a site where dirty filters are located. The filter cleaning system includes a trailer or truck, an air compressor, an aftercooler, an air drier, a filter cleaning station, a compressed air tank, a dust collector, a fan and fan motor, and an airflow verification unit. Along a first fluid communication, compressed air is used to clean dirty filters in the cleaning station and filter cartridges in the dust collector. Along a second fluid communication dirt, liberated from the dirty filter is pulled from the cleaning station to the dust collector by a fan-induced draft. The compressor creates the first fluid communication and the fan creates a second fluid communication.