Responded to a call in Oakley for an AC unit with restricted airflow. After inspecting the system, I found that the air filter was severely clogged with dust and debris, hindering proper airflow. I replaced the dirty filter with a new one, immediately improving airflow and restoring the system's cooling capacity. This simple fix highlights the importance of replacing your air filter regularly, ideally every 1-3 months, to maintain proper airflow, improve system efficiency, and prevent potential damage to your AC unit. A clean filter can also improve indoor air quality.