An apparatus and methodology for abating fungi in a building supported on a ground surface and having an upper enclosed living space and a lower enclosed space beneath the upper enclosed space and proximate or beneath the ground. The apparatus includes a blower positioned in the lower enclosed space and having an air inlet and an air exhaust; a plurality of intake conduits having inlet ends adapted to open in the lower enclosed space proximate a lower boundary of that space and outlet ends connected to the inlet of the blower; a plurality of exhaust conduits having inlet ends connected to the exhaust of the blower and outlet ends discharging into the lower enclosed space; a plurality of ultraviolet lamps establishing germicidal killing zones intercepting and cleansing air moving from the lower enclosed space to the inlet of the blower; and a condenser positioned between the outlet ends of the intake conduits and the blower inlet, forming a part of a refrigerant loop, and serving to dehumidify the air moving from the outlet ends of the intake conduits to the inlet of the blower.
