AN AIR-CONDITIONING DEVICE IS PROVIDED THAT CAN GENERATE IONS WITHOUT INTERFERING WITH A FLOW OF AIR BLOWN OUT FROM AN AIR OUTLET, AND ALLOWS A USER HIM/HERSELF TO EASILY CHANGE AN ION GENERATING ELECTRODE. SPECIFICALLY, THE AIR-CONDITIONING DEVICE INCLUDES: A WIND DIRECTION CHANGING PLATE (30) PROVIDED IN AN ARE OUTLET THAT BLOWS OUT AIR; AND AN ION GENERATING UNIT (40) DETACHABLY MOUNTED TO THE WIND DIRECTION CHANGING PLATE (30), WHEREIN A RECESS (32) IS FORMED IN THE WIND DIRECTION CHANGING PLATE (30), THE RECESS (32) IS FORMED TO BE LARGER THAN THE ION GENERATING UNIT (40) IN ONE DIRECTION SO THAT THE ION GENERATING UNIT (40) CAN BE FITTED IN THE RECESS (32) ONLY IN A PREDETERMINED POSITION AWAY FROM ONE OF OPPOSITE ENDS OF THE RECESS (32) IN ONE DIRECTION, A GUIDE MECHANISM IS PROVIDED THAT SLIDABLY HOLDS THE ION GENERATING UNIT (40) FITTED IN THE RECESS (32), AND THE GUIDE MECHANISM SLIDES THE ION GENERATING UNIT (40) FITTED IN THE RECESS (32) TOWARD ONE END IN ONE DIRECTION TO SECURE THE ION GENERATING UNIT (40) TO THE WIND DIRECTION CHANGING PLATE (30). (FIG. 6)