Discover Magazine recently reported that the average home will gather around forty pounds of dust per year. So much for a clean house! The dust is attributed to everyday living and day-to-day activities. Just opening a door causes dust to move around, or simply shaking out the sheets on your bed. If pets live in the house, the pet hair, dander and dust mites are increased. Your HVAC system brings dust into the home and business via the heating and cooling system. Return vents also contribute to the buildup of dust activity. The vents circulate the air through the air ducts and as the air passes through, so does dust. This dust gathers in the air ducts and causes all sorts of problems. A professional air duct cleaning service can inspect your system to reveal how clean or unclean your air ducts happen to be. During this inspection, the professional will look for mold, mildew, rodent droppings and other air-borne debris that can get into the mechanics of your heating and cooling sys...