Your Air Ventilation System Moves The Air Throughout In Your Home and it’s the air you and your family breathe all day long. Like cleaning your home your air duct system requires maintenance from time to to time. When you do then you’ll call a professional duct cleaner like CMR, Alpine, Mad Hatter to come to your home and use a NADCA approve machine that hooks to your return air register and creates a negative pressure while starting on the other end of the ducts a trained contractor will use a snake like beater system to knock loose the dust, dirt, and mold that the negative pressure machine then suck out of the home. After that is complete then sometimes the cleaning company will spay a special chemical to seal if all off.
I know you like your home to be dust free, we all do, and if you air ducts are dirty then this grime will get out of the vent in to your home and cause the entire home to be dusty too.