How Often Should You Clean AC Filters in the Gulf Climate?

In coastal and desert Gulf cities, outdoor dust and fine sand enter indoor coils and filters continuously. Most residential split units run twelve or more hours per day for half the year, so disposable panel filters often need attention every two to four weeks during peak season. Inspect filters visually: if you cannot see light through the mesh when held up, airflow is already compromised. Reduced airflow raises head pressure, increases power draw, and can ice the indoor coil on humid nights. Wash reusable mesh filters with lukewarm water and mild soap; let them dry completely before reinstalling. Replace disposable media according to manufacturer ratings—sooner if you have pets, nearby construction, or keep windows open. Schedule a professional deep clean at least once per cooling season. Technicians measure static pressure, clean blower wheels, and verify drain lines—steps that filter swaps alone cannot cover.