Industrial smoke filters of types -S / -M can be used to remove smoke of all work processes by suction. The IRF -S is described as a single station suction. The IRF -M can be used at two exhaust points together with the suction arms. The combination of a cyclone pre-separator with cleanable permanent filter cartridge prevents annoying disposal of the often-expensive disposable filters and extends useful economic life by a multiple. The alternative connection of a suction hose permits using the device even in difficult to access processes.