Abstract: A device for cleaning a rotating vessel filling machine, especially bottle filling machines, of the one-chamber type with a feeding pipe for feeding a liquid or gaseous cleaning medium into filling containers and filling elements. Each of the filling elements includes a housing closure with an outlet that leads to an exhaust and that is closed and opened by a control valve. The filling elements are connected to annular passage means through vessel pressure relieving means. The annular passage means are connected through conduit means both to be brought into communication with a cleaning substance feeding conduit and also to be disconnected therefrom.