If I have my air ducts cleaned will the air quality in my home improve?

According to NADCA, up to 40 pounds of dust is created annually through everyday living in a typical six-room house. Other contaminants and air pollutants such as dander, dust, and chemicals are also generated by normal occupation in a home. Did you know that these contaminants end up in your HVAC system and are re-circulated on average of 5-7 times per day? Over time, these contaminants can be found in your duct work.
Those who suffer from autoimmune disorders or respiratory health conditions such as asthma will benefit by breathing cleaner air. Your indoor air quality will improve, and you will feel healthier.