An objective of this invention is to provide a chlorine dioxide generating device with a decreased size and capable of providing sufficient amount of chlorine dioxide for a prolonged time.Provided is a chlorine dioxide generating device, which is characterized by comprising a light source part and an agent containing part. The light source part generates a light substantially consisting of wavelengths in visible light region, and the agent containing part contains an agent comprising a solid chlorite, and a metal catalyst or metal oxide catalyst. The agent containing part comprises one or more opening parts so as to enable air to move in or out, and here, the agent exists inside of the agent containing part is irradiated by the light generated from the light source part to generate chlorine dioxide gas.本發明之課題在於提供一種小型且可涵蓋極長時間釋出實用上為充分的量之二氧化氯之二氧化氯產生裝置。本發明之解決手段係提供一種二氧化氯產生裝置,其特徵為:前述裝置具備光源部及藥劑容納部,前述光源部用以產生實質上由可見區域的波長所構成之光,於前述藥劑容納部,容納有包含固形的亞氯酸鹽及金屬觸媒或金屬氧化物觸媒之藥劑,於前述藥劑容納部,以使空氣可在內部與外部移動之方式具備1個或複數個開口部,在此,存在於前述藥劑容納部的內部之前述藥劑,係以由前述光源部所產生之前述光來照射而產生二氧化氯氣體。10‧‧‧二氧化氯產生裝置11‧‧‧藥劑容納部12‧‧‧LED晶片13‧‧‧操作基板14‧‧‧藥劑15‧‧‧管16‧‧‧開口部
