The Geratherm® Surgical Warming System is designed to clinically prevent and treat the effects of peri-operative hypothermia. It is constructed using resistive carbon fiber technology with a microprocessor control unit. The control unit can be programmed at 98.6 F to maintain normothermia or at 105 F for treating hypothermia. Safety features include two redundant temperature sensing circuits with continuous automatic fault analysis and shut down. The warming panels are uniformly spaced top to bottom allowing the blanket to evenly distribute warmth. The seams are heat sealed making the blanket waterproof and impervious to body fluids.