How frequently should air conditioning filters be replaced?

Replacing air conditioning filters every 1 to 3 months is considered best practice for maintaining optimal system performance and indoor air quality. Regular replacement of filters is essential because it helps prevent the buildup of dirt and allergens, which can clog the filter and reduce airflow. A clogged filter forces the air conditioning system to work harder, leading to increased energy consumption and potential strain on the system components.

Additionally, maintaining clean filters helps ensure that the air circulating throughout the living spaces is free from contaminants, improving overall health and comfort. While some filters may be designed for longer intervals, it's generally advisable to check them monthly and replace them as needed within that 1 to 3-month timeframe, especially in environments with high dust or pet dander. This routine keeps the system running efficiently and can prolong its lifespan.