Air conditioning is free of charge. Please make sure all windows and balcony doors are closed for the air conditioning to operate effectively. We ask for your co-operation in turning off your air conditioning units when you are not in the Property. For guests who are unfamiliar with using air conditioning, it is advisable to set the room temperature at around 25° for a comfortable temperature. Setting the air-conditioning too low may result in sinus irritation or stiff muscles, especially throughout the night.