PROBLEM TO BE SOLVED: To provide an apparatus which fully contributes to reduction of carbon dioxide in atmospheric air.SOLUTION: An apparatus 3 including a plant containing chloroplast on an outer surface comprises: a temperature measurement part 31 which measures the temperature outside the apparatus； a light quantity measurement part 32 which measures a light quantity value on the outer surface including the plant； an exhaust port 33 provided for the outer surface including the plant； a control part 34 which outputs a first signal in the case where temperature measured by the temperature measurement part is predetermined temperature or less at which photosynthesis activity of the plant is reduced on an installation location of the apparatus and a light quantity value measured by the light quantity measurement part is a predetermined light quantity value or more at which the plant starts photosynthesis； and an exhaust part 35 which exhausts air inside the apparatus, which received heat generation from the apparatus, from the exhaust port when the first signal is input.SELECTED DRAWING: Figure 6【課題】大気中の二酸化炭素の低減に十分に寄与する装置を提供する。【解決手段】葉緑体を含む植物を外面に備えた装置３であって、前記装置外部の温度を計測する温度測定部３１と、前記植物を備える前記外面における光量値を計測する光量測定部３２と、前記植物を備える前記外面に設けられた排気口３３と、前記温度測定部によって計測された前記温度が、前記装置の設置場所において前記植物の光合成活動が低減する所定の温度以下で、且つ、前記光量測定部によって計測された前記光量値が、前記植物が光合成を開始する所定の光量値以上である場合には、第１の信号を出力する制御部３４と、前記第１の信号が入力されると、前記排気口から前記装置の発熱を受けた前記装置内部の空気を排出する排気部３５と、を備える。【選択図】図６
