The present disclosure relates to a ventilation apparatus. The ventilation apparatus of the present disclosure comprises: a casing; a suction device accommodated in the casing and having a suction fan for generating a suction force for sucking in air; and a vortex forming device accommodated in the casing and having a swirler rotating below the casing to form a vortex and a driving motor for rotating the swirler, wherein the swirler includes a rotating plate having an air passage hole and a plurality of blades arranged and spaced apart in a circumferential direction along the rim of the rotating plate, and the vortex forming device is positioned lower than the rotation center of the suction fan in the casing.