<p>An axial flow fan having blades (13) provided on a hub (14) and bent sections (13c) each formed by bending an outer peripheral edge of each blade (13) to its negative pressure surface (13e) side. A projection (13f) is formed at a rear edge (13b) of each blade (13), at a position where blowing air speed is high and pressure raising work can be most effectively performed. Each projection (13f) projects in the opposite direction to the rotation direction of each blade (13), projecting relative to a line L connecting the base end and the outer peripheral end of the rear edge (13b) of each blade (13). Since the projection (13f) is provided at a predetermined position at the rear edge (13b) of each blade (13), a shortfall of the amount of a rise in static pressure that is reduced by bending the outer peripheral edge of each blade (13) can be effectively compensated.</p>