An indoor unit of an air conditioner includes a space 22 that is partitioned from a heat exchanger 6 and an indoor fan 8 by a partition wall 46c. An electrostatic atomizing device 18A is accommodated within the space 22 to generate dew condensation using moisture contained in air, then generate an electrostatic mist by high voltage discharge, and discharge the electrostatic mist into a room. The electrostatic atomizing device 18A includes a Peltier element 36 and a plurality of fins 28a for dissipating heat from the Peltier element 36. The plurality of fins 28a have air gaps defined therebetween substantially along an air flow induced by the indoor fan 8.
