The air purifying control is executed in accordance with the situation and brightness of the movement of the person in the room. The air purifier (100) detects at least a state in which no person is present in the room to be air-cleaned, a state in which there are few people, and a state in which there are many people, based on the detection signal of the human sensor (31). A first determination unit (11) for determining which one is, and a second determination unit () for determining at least whether the room to be air-cleaned is in a bright state or a dark state from a detection signal of the illuminance sensor (32). 12) and an operation control unit (13) that controls the operation of the air cleaning function using the determination results of the first determination unit (11) and the second determination unit (12).室内の人の動きの状況と明るさとに応じて空清制御を実行する。空気清浄機（１００）は、人感センサ（３１）の検知信号から、少なくとも、空気清浄対象室内に人が居ない状態、人が居て動作が少ない状態、人が居て動作が多い状態のいずれであるかを判定する第１判定部（１１）と、照度センサ（３２）の検知信号から、少なくとも、空気清浄対象室内が明るい状態、暗い状態のいずれであるか判定する第２判定部（１２）と、第１判定部（１１）および第２判定部（１２）の判定結果を用いて空気清浄機能の運転を制御する運転制御部（１３）と、を備える。
