To provide an air conditioner unit that makes it possible to suppress noise increase caused by resonance. An air conditioner unit (10) includes: a fan (11) that includes an impeller (110) and a motor (11M); a heat exchanger (12) to which the fan (11) blows air; and a housing (20) configured to house the fan (11) and the heat exchanger (12). A gap (S2) located on windward side of the heat exchanger (12) and a gap (S1) located on leeward side of the heat exchanger (12) are partitioned by partition walls (31, 32, 33) that protrude from the heat exchanger (12) to the windward side and the leeward side.