Fan (3) includes suction-side shroud (3a) and suction port (22) at the center portion of suction-side shroud (3a). Fan case (2) includes opening part (13) at a location facing suction port (22). Fan seal (4) is disposed between inner wall surface (2a) of fan case (2) and suction port-side end surface (3b) of suction-side shroud (3a). Opening part (13) includes a plurality of mushroom-shaped anchors (2b). Fan seal (4) includes holding parts (4b) that fit onto mushroom-shaped anchors (2b). Fan seal (4) is press-fitted onto fan case (2) that includes mushroom-shaped anchors (2b).