Abstract: The apparatus serves to clean surfaces of articles by spraying a liquid cleaning fluid on said articles. A support is provided for carrying an article to be cleaned, also a nozzle system for spraying said cleaning fluid, and mechanism for moving said support and nozzle system relative to each other. The nozzle system comprises an upright nozzle tube disposed laterally of the support and above the same, an upper horizontal nozzle tube extending over the support, and a lower horizontal nozzle tube extending under the support. Each of said upright, upper and lower nozzle tubes have nozzles which are arranged in a longitudinal row and directed toward said support. Said upright and upper nozzle tubes and said support define a cleaning zone between them. Said nozzle system comprises an additional nozzle tube extending into said cleaning zone and having at least one longitudinal row of nozzles which extend laterally from the axis of said additional nozzle tube.