We performed a comprehensive air duct cleaning for this residence in Pittsburgh to improve indoor air quality and system efficiency. Our team utilized a truck-mounted vacuum system, running high-powered suction hoses directly to the furnace to extract accumulated debris from the supply and return lines. We carefully cleaned the galvanized metal ductwork, including the blower assembly and internal furnace cabinet where significant dust and debris had settled. The process involved clearing cobwebs from surrounding basement joists and ensuring the fiberboard duct linings were free of loose contaminants. This thorough cleaning restored the interior metal surfaces and optimized the entire ventilation network.