When workers from Penn Air, a test and balancing engineering firm founded in 1973, discovered a dirty duct that prevented them from getting an air balance reading, their business model changed forever ...

Air duct cleaning ranks high on the list of household maintenance that can easily be forgotten as it’s out of sight, out of mind. You’ll rarely see the impact of debris in your ducts, and since the ...

Action Air Duct, based in Denver, is rolling out a new service to tackle the ongoing issue of dust and allergens, which tend to build up in the city’s dry climate. Action Air Duct, uses advanced ...