Indoor unit of an air conditioner

An indoor unit of an air conditioner, comprising:

• a cabinet assembly including an inner space therein;
• a discharge port defined on an outer surface of the cabinet, and communicating with the inner space;
• a suction port defined on an outer surface of the cabinet, and communicating with the inner space;
• a filter assembly that filters air flowing through the suction port;
• a fan assembly disposed in the inner space to discharge, through the discharge port, intake air suctioned through the suction port, and filtered by the filter assembly;
• a steam generator disposed in the inner space to convert water into steam to generate humidified air;
• a humidification fan coupled to the steam generator to supply the intake air suctioned through the suction port, and filtered by the filter assembly to the steam generator;
• and
• a steam guide (i) connected to the steam generator, and (ii) configured to supply a humidification flow channel, to guide steam discharged from the steam generator to the discharge port, the humidification flow channel (i) defined from steam generator to the discharge port, and (ii) independent from the inner space from steam generator to the discharge port,
• wherein the humidification fan push the intake air into the steam generator to discharge the humidified air to the steam guide.