PROBLEM TO BE SOLVED: To provide an in-cabin air cleaner capable of cleaning the air in a cabin of a vehicle, an aircraft or a ship efficiently and safely without using an agent.SOLUTION: A bearing member is arranged on a periphery of a ceiling of a cabin, at a prescribed distance from the cabin ceiling, so as to be faced to at least a part of the ceiling of the cabin, and an ultraviolet ray emission part for irradiating an ultraviolet ray having a wavelength of 220 nm-290 nm to a light-emitting part is arranged on the bearing member, and the air existing between the bearing member and the ceiling of the cabin facing thereto is sterilized by irradiating an ultraviolet ray.SELECTED DRAWING: Figure 1【課題】 車輌、航空機又は船舶のキャビン内の空気を、薬剤を使用せずに効率的かつ安全に浄化することができるキャビン内空気清浄装置を提供する。【解決手段】 支持部材をキャビンの天井近傍に当該キャビン天井から所定の距離をおいて当該キャビンの天井の少なくとも一部と対向するように配置し、前記支持部材に波長２２０ｎｍ～２９０ｎｍの紫外線を前記発光部に照射するための紫外線出射部を配置して、前記支持部材と、これと対向する前記キャビンの天井との間の空間に存在する空気に前記紫外線を照射して殺菌を行うようにする。【選択図】図１
