Dust, dirt, pollen, pet dander and other airborne particles are pulled into your duct system every time your furnace or air conditioner runs. Over time, they build up inside the ductwork, making it an ideal breeding ground for bacteria, fungus, mites and other organisms. These microscopic contaminants are then blown through your home every time your air conditioning or heating system turns on. In addition to protecting your family’s health, duct cleaning helps you cut heating and air conditioning costs by allowing more efficient airflow.