Dirty air duct systems are a major source of indoor air pollution. Air bourne contaminants are pulled into the air ducts every time the heating and cooling system run. These contaminants can include dust and debris, dust mites, mold, mildew, pollen, and pet dander. By removing these things can improve the quality of air you breathe in. Also by cleaning ducts, the efficiency of your HVAC system is improved, which can lower energy bill. At A-1 Heating and Air Conditioning Company we use Roto-Vision system, which consists of LCD screen and camera. This allows our technicians to see deep inside your air duct system before and after cleaning. Our technician uses specialized tools to dislodge dirt and debris in air flow systems followed by a thorough sanitizing process. Duct cleaning includes the cleansing of various system components of forced air systems: the supply and return air ducts and registers, grills and diffusers, heat exchangers and cooling coils.