In addition, a newly cleaned air duct system runs more efficiently than a dirty one, resulting in lower utility bills and a cleaner, less dusty home.Our air duct cleaners check for dust, dirt, pollen, animal dander and other airborne contaminants that are pulled into your HVAC system every time the furnace or air conditioner runs. Over time, they build up inside your ductwork, making your air duct system a breeding ground for mold spores, bacteria, fungus, mildew and other microbes, which are then re-circulated through your home, impacting the health and comfort of your family.Those who suffer from allergies, asthma or other respiratory ailments, especially children and the elderly, are vulnerable to the effects of indoor air pollution.