US Patent 11234861 Respiratory therapeutic electric heat source face mask

An improved face mask with a temperature monitored resilient, flexible face barrier to limit the face, eyes, lips, and oral tissues of the mouth of the user from direct exposure to heated air from the mask above threshold temperatures. The improved face mask and heat source conditions air drawn into the face mask before it is actually breathed and thereby supply heated or elevated higher temperature at a therapeutic air pressure to persons in need thereof, particularly to maintain a wearer's upper respiratory system at a further elevated high temperature, capable of inactivating viruses, such as the Coronavirus 2 (SARS CoV-2 virus), killing bacteria, (TB) fungi, biofilms, tumor cells, pre-malignant cancer cells, dysplasia cells and other pathogens, and to promote an immune-stimulatory response and to prevent or inactivate a virus in the respiratory system of the wearer of the heated face mask, in both ambulatory and hospitalization settings.