VENTILATION DEVICE

To acquire a ventilation device which can efficiently reduce the contamination of air in a room by one unit.SOLUTION: A ventilation device 100 includes: a housing 1 where a plurality of indoor air suction ports 3 provided separately corresponding to a plurality of different ventilation object regions in a room interior 210 and an exhaust port 2 are provided; a blower 5 disposed in the housing 1, and for generating a flow of indoor air from the suction port to the exhaust port 2; a plurality of suction port opening/closing parts 4 for opening/closing each of the plurality of suction ports; a plurality of contamination amount detection parts 6 provided at each of the plurality of indoor air suction ports 3, and for detecting the contamination amount of indoor air passing each of the plurality of indoor air suction ports 3; and a control part 7 for controlling the opening/closing operation of the suction port opening/closing part 4 and the air amount of the blower 5 based on the contamination amount of the indoor air of each of the plurality of ventilation object regions.SELECTED DRAWING: Figure 1 【課題】一台で室内の空気の汚れを効率良く低減できる換気装置を得ること。【解決手段】換気装置１００は、室内２１０における複数の異なる換気対象領域に対応して個別に設けられた複数の室内空気吸込口３と、排気口２とが設けられた筐体１と、筐体１内に配置され、吸込口から排気口２へ向かう室内空気の流れを生成する送風機５と、複数の吸込口の各々を開閉する複数の吸込口開閉部４と、複数の室内空気吸込口３の各々に設けられ、複数の室内空気吸込口３の各々を通過する室内空気の汚れ量を検出する複数の汚れ量検出部６と、複数の換気対象領域の各々の室内空気の汚れ量に基づいて、吸込口開閉部４の開閉動作及び送風機５の風量を制御する制御部７と、を備える。【選択図】図１