A dehumidifier comprising: dehumidification means configured for removing moisture contained in the air; air blowing means configured for suctioning the air in a room and blowing out into the room dry air obtained by causing the suctioned air to pass through the dehumidification means; wind direction changing means configured for changing a blowing direction of the dry air; wherein the whole area within a range to which the wind direction means can perform air blowing is a scanning region which is divided into a plurality of areas; temperature detection means configured for detecting a temperature of the room air; surface temperature detection means attached to the wind direction changing means and configured for detecting surface temperatures in the room in each of the areas of the scanning region according to the blowing direction; control means configured for controlling the dehumidification means, the air blowing means, and the wind direction changing means on the basis of detection results of the temperature detection means and the surface temperature detection means; characterised in that the dehumidifier comprises further: indication means provided with an area indication portion configured for indicating areas corresponding to the areas of the plurality of areas of the scanning region, wherein it is determined from surface temperatures detected by the surface temperature detection means that there is an object to be dried and a position where the object to be dried is placed is indicated on the indication means by indicating an indication mark in each area of the indication portion where an object to be dried is determined to be placed, wherein the fact that the drying condition of an object to be dried is changing or proceeding is indicated by changing the indication mark. dehumidification means configured for removing moisture contained in the air; air blowing means configured for suctioning the air in a room and blowing out into the room dry air obtained by causing the suctioned air to pass through the dehumidification means; wind direction changing means configured for changing a blowing direction of the dry air; wherein the whole area within a range to which the wind direction means can perform air blowing is a scanning region which is divided into a plurality of areas; temperature detection means configured for detecting a temperature of the room air; surface temperature detection means attached to the wind direction changing means and configured for detecting surface temperatures in the room in each of the areas of the scanning region according to the blowing direction; control means configured for controlling the dehumidification means, the air blowing means, and the wind direction changing means on the basis of detection results of the temperature detection means and the surface temperature detection means; characterised in that the dehumidifier comprises further: indication means provided with an area indication portion configured for indicating areas corresponding to the areas of the plurality of areas of the scanning region, wherein it is determined from surface temperatures detected by the surface temperature detection means that there is an object to be dried and a position where the object to be dried is placed is indicated on the indication means by indicating an indication mark in each area of the indication portion where an object to be dried is determined to be placed, wherein the fact that the drying condition of an object to be dried is changing or proceeding is indicated by changing the indication mark. indication means provided with an area indication portion configured for indicating areas corresponding to the areas of the plurality of areas of the scanning region, wherein it is determined from surface temperatures detected by the surface temperature detection means that there is an object to be dried and a position where the object to be dried is placed is indicated on the indication means by indicating an indication mark in each area of the indication portion where an object to be dried is determined to be placed, wherein the fact that the drying condition of an object to be dried is changing or proceeding is indicated by changing the indication mark.