The answer to 'types of air duct cleaning' is that there are several common methods used to clean air ducts in homes and buildings. The most common types of air duct cleaning include brush agitation, air whip, and negative air pressure cleaning.
Brush agitation involves using rotating brushes to dislodge and remove built-up dirt, dust, and debris from the interior surfaces of the ductwork. Air whip cleaning uses high-powered compressed air to blast debris from the ductwork. Negative air pressure cleaning creates a vacuum that sucks out contaminants from the ducts.