Duct cleaning may improve airflow, but the jury is still out on whether or not it is a good practice. The American Society of Heating and Refrigeration Engineers (ASHRAE) does not recommend duct cleaning to improve indoor air quality. The ASHRAE prefers to focus on air conditioning and ventilation system maintenance instead. A few studies out there suggest duct cleaning may improve airflow, but these studies have been met with some criticism. For example, one study used computer models to tell that improved airflow was due to removing dust, mouse droppings, and other allergens. However, this study has been criticized for its lack of accuracy and its use of outdated computer models. So, while duct cleaning may improve airflow in some cases, there is currently no evidence to support the claim that it is a necessary or effective practice for improving indoor air quality. https://ductdallas.com/ #airduct #cleaning #dallas #frisco #dryervent #HVAC