“Air duct cleaning” is the term most commonly applied to the work performed by professional heating, ventilating, and air conditioning (HVAC) system cleaningcontractors. … In order to obtain the most effective results, it is recommended that all portions of an HVAC system be cleaned.

Brush duct surfaces as well as use contact vacuum cleaning to remove all dust and particles. Protect the ductwork by sealing and re-insulating access holes and use soft-bristled brushes to clean fiberglass duct board or metal ducts lined with fiberglass