RFN cartridge filters regenerator is designed for cleaning the cartridge filters which during the operation of the filtering unit became polluted to such degree that the automatic filter cleaning system is not able to regenerate. This case is an example of the flow efficiency decrease of the device. The device is designed for cleaning the filters that are charged with dry dust particles, non-explosive dusts and with chemically neutral pollutants. The regenerator has been developed for application in closed rooms (indoor application). It is important that in the vicinity of the process should be present servicing people only, because the regeneration process occurs in a closed space.