A combination patient-transfer and intraoperative heater device has a top and bottom chamber separated by a barrier. The patient rests on the top chamber, which has a plurality of apertures for discharge of temperature-controlled filtered heated or cooled air at a regulated pressure for patient comfort and mitigation of infection. Heated or cooled filtered air is delivered to the area surrounding the patient, maintaining body temperature during anaesthesia. The bottom chamber has a plurality of apertures. When air pressure is low or off, the bottom chamber is flat and un-inflated. When air pressure is increased, air enters the bottom chamber and the apertures emit air, creating an air cushion facilitating lateral movement of the lifter device. The device performs two functions that now require separate devices and air blowers, it saves space and reduces both costs and complexity in the operating room while mitigating risk of infection.