characterised by exhaustion of inside air from the room (in combination with simultaneous introduction of outside air F24F1/0038)

Full Title

Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station > Indoor units, e.g. fan coil units (self-contained units F24F1/02) > characterised by exhaustion of inside air from the room (in combination with simultaneous introduction of outside air F24F1/0038)