The present invention provides an air cleaner that can prevent the heat is spreading to cover the outside. A pair of front-side first flange 23t and a pair of front-side second flange 23u is, outside of the second side 23ecc and third side heating portion housing portion side end portion of each of the 23ecd 23ec It stretched so is formed by a pair of rear side first flange 23w and the pair of front second flange 23x toward the heating unit housing portion side end portion of each of the second side surface 23edc and third side 23edd since toward the outside of the 23ed is formed by stretching, the heat generated by the PTC heater 23b is less likely to diffuse from the front cover 23ea and rear-side cover 23eb to the outside, this time, each flange of the predetermined larger width than the spacing dimension D, for example, be formed so that the 20 mm, more PTC suppress air cleaner diffusion from the front cover 23ea and rear-side cover 23eb of heat generated by the heater 23b to the outside.FIELD 7【課題】カバー外部に熱が拡散することを抑制できる空気清浄機の提供。【解決手段】一対の前面側第1フランジ23t及び一対の前面側第2フランジ23uは、第2側面23ecc及び第3側面23ecdの各々の側端部を加熱部収納部23ecの外側に向けて延伸させて形成されており、一対の背面側第1フランジ23w及び一対の前面側第2フランジ23xは、第2側面23edc及び第3側面23eddの各々の側端部を加熱部収納部23edの外側に向けて延伸させて形成されているので、PTCヒータ23bで発生した熱が、前面側カバー23eaや背面側カバー23ebから外部へ拡散しにくく、このとき、各フランジを、上記所定の間隔寸法Dよりも大きい幅寸法、例えば、20mmとなるように形成すれば、よりPTCヒータ23bで発生した熱の前面側カバー23eaや背面側カバー23ebから外部への拡散を抑制する空気清浄機。【選択図】図7
