To provide a more suitable air cleaning module utilizing ultraviolet light.SOLUTION: An air cleaning module 10 includes: a housing 12 that includes an air inlet port 22 and an air exhaust port 24, and accommodates a first treatment chamber 26 communicating with the air inlet port 22 and a second treatment chamber 28 communicating with the air exhaust port 24; an intermediate member 30 that is disposed between the first treatment chamber 26 and the second treatment chamber 28, and provided with an air ventilation port 32 allowing the first treatment chamber 26 and the second treatment chamber 28 to communicate with each other; a filter 34 disposed in the first treatment chamber 26; and a light source 40 that is disposed in the second treatment chamber 28 and emits ultraviolet light B. The intermediate member 30 includes a window member including a translucent material containing a fluorescent substance that converts ultraviolet light into visible light, and the window member converts at least part of ultraviolet light from the light source into visible light to output the visible light into the first treatment chamber 26.SELECTED DRAWING: Figure 1【課題】紫外光を利用した、より好適な空気清浄モジュールを提供する。【解決手段】空気清浄モジュール10は、吸気口22および排気口24を有し、吸気口22と連通する第1処理室26および排気口24と連通する第2処理室28を収容する筐体12と、第1処理室26と第2処理室28の間に設けられ、第1処理室26と第2処理室28を連通する通気口32が設けられる中間部材30と、第1処理室26内に設けられるフィルタ34と、第2処理室28内に設けられ、紫外光Bを発する光源40と、を備える。中間部材30は、紫外光を可視光に変換する蛍光体を含有する透光性材料で構成される窓部材を含み、窓部材は、光源からの紫外光の少なくとも一部を可視光に変換して第1処理室26内に出力する。【選択図】図1