PROBLEM TO BE SOLVED: To provide an air purifier with good usability, wherein an engaging means included in a lid body that detachably fits to an opening for inserting or removing an air purifying part does not project.SOLUTION: A rear cover 63 of a case has a suction port 33 for inserting or removing an air purifying part 11 that purifies air. A rear panel 7 has a plurality of ventilation holes, and is detachably fitted to the suction port 33. Outside air is sucked from the plurality of ventilation holes in the rear panel 7, and the sucked air is purified by the air purifying part 11 and blown out. An edge part of the rear panel 7 has a flexible section 73 on which an engaging projection for engaging with the suction port 33 is provided, and a finger-receiving recess 72.COPYRIGHT: (C)2013,JPO&INPIT【課題】空気浄化部を出し入れする開口部に着脱自在に嵌着する蓋体が有する係止手段が突出せず、利便性の良い空気清浄機を提供する。【解決手段】筐体の後カバー63は、空気を浄化する空気浄化部11を出し入れする吸込口33を有し、後パネル7は、複数の通気孔を有し吸込口33に着脱自在に嵌着される。後パネル7の複数の通気孔から外部の空気が吸い込まれ、吸い込んだ空気が空気浄化部11により浄化されて吹き出される。後パネル7は、縁部に、吸込口33に係止する係止突部を設けた可撓片73、及び指掛け凹部72を有する。【選択図】図5