What is the main purpose of an air conditioner filter?

The main purpose of an air conditioner filter is to keep the coils clean. The filter captures dust, dirt, and other debris that could otherwise accumulate on the evaporator and condenser coils. When the coils are clean, they operate more efficiently by allowing optimal heat exchange. If the coils are covered in dirt or contaminants, they cannot effectively cool the air, leading to decreased performance and potential damage to the air conditioning system.

While an air conditioner filter may indirectly contribute to reducing energy consumption due to improved efficiency, enhancing airflow, or affecting humidity levels, its primary function is to protect the coils by filtering out particulates. Therefore, maintaining a clean filter is crucial not only for the longevity of the air conditioning system but also for ensuring that it functions correctly and effectively.