Dirty Socks Syndrome (DSS) was the name given to a foul odor that is emitted by an air-conditioning system. It seems to be indigenous to heat pump systems and is most active during the changing of the seasons. During this time the heat pump cycles or reverses several times within a short period. The foul odor is emitted when the blower engages. Since the actual cause for this syndrome is still hotly debated among engineers, an official “fix” by the industry has never been adopted. However, TechniCoated coils (evap coil) seem to solve the problem. It is believed that because of the sheeting action of the final coat used in the TechniCoat process that the moisture does not have a place on the coil itself to collect, therefore providing no area of growth for the bacteria or microbe suspected of causing the dirty socks smell.