A patient lifter with an intraoperative controlled temperature air delivery system, comprising: a. an air inflated pad (101, 101', 2101, 3101) having atop chamber (120, 120", 2120, 3120, 4120) and a bottom chamber (121, 121", 2121, 3121) separated by a barrier (104, 104a, 2104, 3104); b. said top chamber (120, 120", 2120, 3120, 4120) comprising a top surface (103, 2103) having a plurality of air venting apertures (2105a, 2105b) therein, said air venting apertures (2105a, 2105b) capable of leaking heated or cooled air; c. said top chamber(120, 120", 2120, 3120, 4120) being a single chamber free from springs or barriers therein and having an inlet (2106, 3106, 4106) appointed to be supplied with a regulated controlled low pressure and controlled temperature heated or cooled air; d. said bottom chamber (121, 121", 2121, 3121) comprising a substantially flat bottom surface (102, 2102) having a plurality of air venting apertures (108, 2108) therein, capable of creating a cushion of air below said patient lifter; e. said bottom chamber (121, 121", 2121, 3121) having an inlet (110, 2110) appointed to be supplied with ambient air at a regulated controlled pressure to facilitate lifting and lateral displacement during patient transfer; f. said barrier (104, 104a, 2104, 3104) being a diaphragm formed of a thin flexible non-porous substantially non-rigid material; and g. said top surface (103, 2103) being substantially flat and said plurality of air venting apertures (2105a, 2105b) being flush mounted therein so that said apertures (2105a, 2105b) do not protrude from said top surface (103, 2103); whereby heated air or cooled air is discharged from said top surface (103, 2103), and formation of an air cushion from said bottom surface (102, 2102) facilitates lateral translation on a flat or irregular surface and reduces stress on both patient and hospital personnel; characterized in that said inlet (2106, 3106, 4106) of said top chamber (120, 120", 2120, 3120, 4120) further comprises a filter (107, 2107, 3107, 4107) adapted to filter said regulated, controlled pressure and controlled temperature heated or cooled air in order to remove bacteria; said filter (107, 2107, 3107, 4107) is integrated within said inlet (2106, 3106, 4016) of the top chamber (120, 120", 2120, 3120, 4120) and/or within mating attachment means (2106', 3106') for attaching a hose to said inlet (2106, 3106, 4106) of the top chamber (120, 120", 2120, 3120, 4120); whereas said inlet (110, 2110) of said bottom chamber (121, 121", 2121, 3121) is adapted to provide ambient air supplied at high pressure in an unfiltered manner to the bottom chamber (121, 121", 2121, 3121) to create said air cushion during patient transfer to the lower chamber. a. an air inflated pad (101, 101', 2101, 3101) having atop chamber (120, 120", 2120, 3120, 4120) and a bottom chamber (121, 121", 2121, 3121) separated by a barrier (104, 104a, 2104, 3104); b. said top chamber (120, 120", 2120, 3120, 4120) comprising a top surface (103, 2103) having a plurality of air venting apertures (2105a, 2105b) therein, said air venting apertures (2105a, 2105b) capable of leaking heated or cooled air; c. said top chamber(120, 120", 2120, 3120, 4120) being a single chamber free from springs or barriers therein and having an inlet (2106, 3106, 4106) appointed to be supplied with a regulated controlled low pressure and controlled temperature heated or cooled air; d. said bottom chamber (121, 121", 2121, 3121) comprising a substantially flat bottom surface (102, 2102) having a plurality of air venting apertures (108, 2108) therein, capable of creating a cushion of air below said patient lifter; e. said bottom chamber (121, 121", 2121, 3121) having an inlet (110, 2110) appointed to be supplied with ambient air at a regulated controlled pressure to facilitate lifting and lateral displacement during patient transfer; f. said barrier (104, 104a, 2104, 3104) being a diaphragm formed of a thin flexible non-porous substantially non-rigid material; and g. said top surface (103, 2103) being substantially flat and said plurality of air venting apertures (2105a, 2105b) being flush mounted therein so that said apertures (2105a, 2105b) do not protrude from said top surface (103, 2103); whereby heated air or cooled air is discharged from said top surface (103, 2103), and formation of an air cushion from said bottom surface (102, 2102) facilitates lateral translation on a flat or irregular surface and reduces stress on both patient and hospital personnel; characterized in that said inlet (2106, 3106, 4106) of said top chamber (120, 120", 2120, 3120, 4120) further comprises a filter (107, 2107, 3107, 4107) adapted to filter said regulated, controlled pressure and controlled temperature heated or cooled air in order to remove bacteria; said filter (107, 2107, 3107, 4107) is integrated within said inlet (2106, 3106, 4016) of the top chamber (120, 120", 2120, 3120, 4120) and/or within mating attachment means (2106', 3106') for attaching a hose to said inlet (2106, 3106, 4106) of the top chamber (120, 120", 2120, 3120, 4120); whereas said inlet (110, 2110) of said bottom chamber (121, 121", 2121, 3121) is adapted to provide ambient air supplied at high pressure in an unfiltered manner to the bottom chamber (121, 121", 2121, 3121) to create said air cushion during patient transfer to the lower chamber.