An ion generation apparatus includes: an air blower including a motor 2 having output shafts 21 on both sides along a shaft direction and two impellers 3 respectively attached to the output shafts 21 and two ducts 5 through which air sent through rotation of the two impellers 3 is individually allowed to flow in the same direction, for emitting the air outside. A part of whole of each of the ducts 5 is provided in the laminar flow section where a flow of the air is changed into a laminar flow. Since an ion generating section is provided in each of the laminar flow sections, ions generated by the ion generating section can be efficiently involved in the air, so as to increase a concentration of the ions emitted to inside of a room together with the air.