暖房中は室外の空気が入らないように窓を閉めてください。
While the heating is on, please close the windows so that outside air doesn't come in.
エアコンの室外機が古くなって音がうるさい。
The air conditioner's outdoor unit has gotten old and is noisy.
携帯電話での通話は室外でお願いします。
Please take phone calls outside the room.