Srofe's involvement in the air duct-cleaning and indoor air quality industries predates NADCA itself. In 1984, after years of working in the uniform service industry, Srofe purchased Delta Industrial Cleaning, an Ohio-based kitchen exhaust residue removal service with operations in Cleveland, Chicago and Washington, D.C.
IAQ was just starting to enter the public consciousness. The discovery of what would come to be known as Legionnaires' disease a few years earlier made many in the medical community realize the effect IAQ could have on peoples' health.
Srofe soon realized this created a market for air duct cleaners. Dozens of area hospitals, hotels and offices - anywhere large numbers of people were confined - could benefit from the service. Srofe says he never could have predicted how big his company, or air duct cleaning, would become. An industry that began by offering to remove dirt from hvac systems now talks about eliminating biocides or mold.
"What's coming through the ducts is more important that it's ever been," Srofe said. "The whole industry has gotten so much more technical."