When you have your ducts cleaned you are creating a healthier indoor environment. Pollen, dirt, dust, bacteria, mold, pet dander, and other harmful substances can accumulate in the air ducts. When the air blows through the ducts, the harmful substances are released in the room air causing sickness. By having the ducts cleaned, your breathing will improve, your sinuses will clear up, you notice a drastic drop in sneezing and coughing, there will be less build up of dust and dirt on the furniture, you will sleep better and wake up more rested and alert. As well, your children and pets will be healthier. There will also be an improvement in odor of the room. Your room air will be clean and fresh.