PROBLEM TO BE SOLVED: To provide a dehumidifier which can reduce a thermal loss caused by the heat discharge of a heater, and can be saved in power.SOLUTION: This dehumidifier comprises: a moisture absorbing material 15 an air blower 4 for sending indoor air 2 which is absorbed by the moisture absorbing material 15 a circulator 12 for sending circulating air 14 which regenerates the moisture absorbing material 15 the heater 9 for heating the circulating air 14 which passes through the moisture absorbing material 15 and a heat exchanger 20 which condensates a moisture content by cooling the circulating air 14 which has passed through the moisture absorbing material 15. A plurality of the moisture absorbing materials 15 are arranged so as to sandwich the heater 9 and the air blower 4, and the indoor air 2 can efficiently circulate while passing through the moisture absorbing material 15.
