Beside is a portable air conditioner that can transform terraces and gardens into spaces of comfort. Air conditioners usually comprise two units: an indoor unit with a built-in radiator to perform heat exchange, and an outdoor unit with a compressor to control refrigerant temperature. Because the indoor unit is mounted to the wall, users are unable to move the air conditioner to a different location. To overcome this problem, Japanese innovators Daikin Industries have developed a new ultra-small compressor and changed the radiator layout to produce an air conditioner that is light, portable and flexible.