The invention relates to a nozzle attachment assembly including a connection element having a coupling point, wherein along an axial direction, a jet preservation element adjoins a jet shaping element, which adjoins the connection element, wherein the jet preservation element includes an outlet opening in fluid-conducting connection with the coupling point, the fluid-conducting connection being configured as an expansion zone delimited in a first plane by cover walls that have a distance and delimited by side walls in a second plane, such that the expansion zone overall replicates a jet geometry of the jet shaping element in such a way that a liquid jet formed thereby is continuously surrounded within the expansion zone by a peripheral gap, and wherein the connection element and/or the jet shaping element and/or the jet preservation element includes at least one gas inlet opening, which opens into the expansion zone.