An impeller of an axial fan includes a cup-shaped blade support portion configured to cover a rotor holder, and blades arranged in a circumferential direction radially outside of the blade support portion. Rotation of the impeller generates a downward air flow. The axial fan includes first and second balance correction portions. The first balance correction portion is located between the blade support portion and the rotor holder. The second balance correction portion is located axially below the first balance correction portion, and is located axially below the rotor holder and a junction of each blade with the blade support portion. The impeller includes a first cone portion located axially below the second balance correction portion, and decreases in diameter with decreasing height.