How do I improve airflow in my home?

Ensure all supply vents and return registers are open and not blocked by furniture, curtains, or rugs. Replace dirty air filters regularly as a clogged filter is the most common cause of poor airflow. Check that your ductwork is properly sized and not crushed or disconnected. Consider adding return air ducts in rooms that lack them. Have a professional inspect your system for duct leaks and ensure the HVAC fan is set to the correct speed.