People with allergies, asthma or other respiratory conditions should have their air ducts cleaned regularly to eliminate potential health risks. Not only is it good for the health of the people in the home, but air duct cleaning is also essential after disasters because restoration workers often carry dust and other accumulated particles. You can’t see the dust in your air ducts, so cleaning them regularly will make a huge difference.
A common cause of indoor air pollution is dirt, dust, and animal dander. The higher the number of pets you have in your home, the more likely you’ll have a more significant accumulation of pet dander in your ducts. The smell of pet dander can also affect those with allergies. High-traffic areas in your home may also have dirt, tailpipe soot, and exterior dust that settle in your ducts. Those areas with high humidity can also contribute to the accumulation of dust and debris in their ducts.
EPA guidelines on indoor air quality warn that the air in your home may be more polluted than outside. These impurities circulate in your air ducts, contaminating them. Regular cleaning is recommended by a licensed HVAC contractor and may be necessary under certain circumstances. Cleaning your ducts is especially important if you’ve recently moved into a new home. If the previous owner of the house was a smoker, it’s recommended that the ductwork be cleaned.
Most homeowners use central air. Despite filters and other protective measures, airborne particles are still passed through the ductwork daily. 
Though filters help to prevent some of these contaminants from getting into the house, a buildup of debris can result in unhealthy air. A buildup of waste in the air ducts can also block the evaporator coil and blower wheel, restricting the airflow in the home.
The air ducts in your home are often hidden behind Sheetrock and flooring. As a result, they can become dirty and harbor mold spores. Mold spores can travel easily through the ducts and spread throughout the home. Rainbow International offers a wide range of duct cleaning services that can address the mold problem in any part of your house. They can also clean up any debris left behind during home renovations. The accumulated dust can have a detrimental effect on the air quality inside the home.
If you are unsure about the cleanliness of your air ducts, you can hire a certified air duct cleaning service. A company certified by the National Association of Duct Cleaning Professionals (NADCA) will use industry-standard equipment to thoroughly clean your air ducts and ensure healthy air for your home. Direct Energy Home Services can also provide HVAC replacement and repair services. It is recommended that you have a professional cleaning company come and check your air ducts regularly to avoid serious health risks.
In addition to the air duct cleaning process, your service provider may recommend using a chemical biocide. These biocide chemicals are meant to kill bacteria and fungi and prevent them from regrowing. Some service providers even recommend using ozone, a highly reactive gas that regulates the air outside. However, it is essential to note that using chemical biocides and ozone has no proven benefits and is not recommended in all circumstances.