New Peer-Reviewed Study Finds Negative-Air Duct Cleaning Damages Flexible HVAC Duct Systems
Independent laboratory testing identifies structural failures in flexible ductwork exposed to negative-air cleaning forces, prompting calls for updated industry standards. Bend, Oregon — A newly published, peer-reviewed study in the Spring 2026 issue of The Journal of Cleaning Science found that negative-air duct cleaning may cause structural damage to flexible HVAC duct systems. Authored by […]
Effects of Negative Air Duct Cleaning on Flex Ducting
Abstract: In this paper, we investigate the pressure and airflow tolerances of flex ducting as it pertains to air duct cleaning. Background: Flex ducting is a type of ductwork that consists of a flexible inner core covered by a helical wire and an outer layer of insulation. It is widely used in residential and commercial […]