PROBLEM TO BE SOLVED: To provide a small air cleaner including a human body detection sensor, necessitating no extension of a power cord in a small room such as a toilet, and safely and conveniently used even in the small room such a toilet having no power plug outlet.SOLUTION: The small air cleaner includes an air cleaning unit capable of efficiently adsorbing and dissolving three large smells by one path (all at once) and providing a continuous smell removing effect. The air cleaner is used even in a small room such as a bathroom having no power plug outlet by a blower intermittently driven by a built-in dry battery by a signal from a human detection sensor, and safely and conveniently used. A power supply life is more prolonged.COPYRIGHT: (C)2012,JPO&INPIT【課題】トイレ等の小部屋に電源コードを延設する必要がなく、また電源コンセントがないトイレ等の小部屋でも、安全かつ便利に使用できる人体検知センサー付き小型空気清浄機を提供する。【解決手段】3大臭気をワンパス(一回通し)で効率よく吸着分解し、消臭効果の持続する空気清浄ユニットを有し、人体検知センサーからの信号によって、内蔵した乾電池で断続的に駆動する送風装置により、電源コンセントがないトイレ等の小部屋でも使用でき、安全かつ便利に使用でき、電源寿命をより長くした。【選択図】図1