An electronic device includes a casing, a housing, a first ultraviolet light source, a first driving unit, an object sensor and a processing unit. The housing is disposed at a side of the casing. The first ultraviolet light source is disposed in the housing. The first driving unit is connected to the housing and used to drive the housing to open or close. The object sensor is disposed on the casing and used to sense whether an object gets close to the electronic device. The processing unit is electrically connected to the first ultraviolet light source, the first driving unit and the object sensor. The processing unit selectively controls the first driving unit to drive the housing to open or close and selectively turn on or turn off the first ultraviolet light source according to a sensing result of the object sensor.一種電子裝置,包含一殼體、一罩體、一第一紫外線光源、一第一驅動單元、一物體感測器以及一處理單元。罩體設置於殼體之一側。第一紫外線光源設置於罩體中。第一驅動單元連接於罩體,且第一驅動單元用以驅動罩體開啟或關閉。物體感測器設置於殼體上,且物體感測器用以感測是否有一物體靠近電子裝置。處理單元電性連接於第一紫外線光源、第一驅動單元與物體感測器。處理單元根據物體感測器之感測結果,選擇性地控制第一驅動單元驅動罩體開啟或關閉,且選擇性地開啟或關閉第一紫外線光源。1‧‧‧電子裝置10‧‧‧殼體12‧‧‧罩體14‧‧‧第一紫外線光源16‧‧‧第二紫外線光源22‧‧‧物體感測器24‧‧‧紫外線感測器26‧‧‧臭氧感測器28‧‧‧風扇120‧‧‧蓋體122‧‧‧樞軸124‧‧‧光柵1240‧‧‧葉片
