Abstract: The high-temperature pathogen-disinfecting air filter includes a first layer of heated open-cell foam contained in a housing with an air pump configured to direct airflow across thereof. The first layer of the open-cell foam may be made of a metal alloy and includes a first electrically-resistive elongated body folded in a serpentine pattern. The pattern may define a sheet-like construction of the first layer making it convenient to incorporate into the air filter housing. The controller is provided to apply electrical energy to heat up the foam to a predetermined temperature, thereby providing heat to disinfect the airflow passing across the first layer. Additional foam layers and heat-resistant filters may also be provided.