A device for cleaning 
textile articles with a densified 
liquid state treatment gas, comprising a treatment chamber (10), a supply tank (18) for densified treatment gas and an 
evaporator chamber (36), which spaces are connected to each other by way of suitable tubes to allow 
pressure balance between the different spaces, filling of the treatment chamber (10) with 
liquid state treatment gas from the supply tank (18), as well as drainage of 
liquid state treatment gas from the treatment chamber (10) to the 
evaporator chamber (36). Compressor means (46) are arranged which are organized partly to achieve essentially complete drainage of gaseous treatment gas from the treatment chamber (10), and partly constitute the driving means during one in the treatment process included 
distillation phase, where densified treatment gas in the 
evaporator chamber (36) is gasified and through condenser means (44) conveyed back to the supply tank (18). The condenser means are in 
heat conducting touch with the evaporator chamber (36), and form together with the compressor means (46) a 
heat pump, which alone furnish the necessary 
heat energy for evaporating the liquid in the evaporator chamber (36). In a modified embodiment the treatment chamber (10) is adapted so as to act also as an 
evaporation chamber.