An indoor unit of an air conditioner includes inlet openings 2a, 2b for sucking indoor air into the indoor unit, a pre-filter 5 for removing dust contained in the air sucked through the inlet openings 2a, 2b, a heat exchanger 6 for heat exchange with the air so sucked, an indoor fan 8 for conveying the air heat exchanged by the heat exchanger 6, an outlet opening 10 for blowing out the air conveyed by the indoor fan 8, and a main passage 20 for communicating the inlet openings 2a, 2b with the outlet opening 10. The indoor unit also includes a bypass passage 22 for bypassing the main passage 20, a partition wall 46c for partitioning the bypass passage 22 from the main passage 20, and an electrostatic atomizing device 18 disposed in the bypass passage 22 to generate electrostatic mists.本發明之空氣調節機包含有室內機,前述室內機包含有:吸入室內空氣之吸入口;去除從前述吸入口吸入之空氣所含有之塵埃的預濾器;與吸入之空氣熱交換之熱交換器、搬送以前述熱交換器熱交換之空氣之室內風扇;吹出從前述室內風扇所吹送之空氣之吹出口;及連通前述吸入口與前述吹出口之主流路,且於空氣調節機之室內機更設有:至少將前述熱交換器旁通並連接至前述主流路之旁通流路;從前述主流路分離前述旁通流路之隔壁;及設於前述旁通流路且用以產生靜電霧之靜電霧化裝置。2...室內機本體5...預濾器10...吹出口14...左右翼16...換氣風扇單元18...靜電霧化裝置42...控制部