which is heated if need be and is passed to the compressed air nozzles 7 also disposed in the dry space underneath the false floor 25 is a washing device 19 which is connected to the sump 18 and a non illustrated fresh water feed and has a liquid pump and a heating device the washing device 19 is set up such that it can remove liquid either from the fresh water feed or from the sump 18 and pass it on to various nozzles it being possible for the liquid to be heated and in particular for liquid removed from the fresh water feed to be vaporized also provided in the washing device is a flushing in device with which detergent can be flushed into the housing 1 connected to the washing device 19 are wetting nozzles 9 washing nozzles 10 rinsing nozzles 11 and hot steam nozzles 6 which are disposed on the right hand side of the housing 1 the wetting nozzles 9 are supplied with fresh water and serve for wetting dry items of clothing 2 the washing nozzles 10 are supplied with washing liquid in particular heated washing liquid which is made to circulate in particular.