To provide a fragrant head containing various fragrant liquids and a unit used for carrying one's favorite fragrance around which allow a user to switch the fragrance to a desired kind and strength.

An apparatus provided for diffusing a fragrant liquid comprises a plurality of heating elements for heating arbitrarily each of a plurality of liquids in response to an electric signal and a heating element substrate having supply ports for supplying each of the plurality of liquid to each liquid chamber. With such a configuration, a plurality of fragrant liquids are diffused arbitrarily.