A disposable air filter can be?

A disposable air filter is designed for single-use and is typically constructed from materials that become less effective at filtering air over time. Once the filter has captured a sufficient amount of dust, pollen, and other airborne particles, its ability to maintain airflow and filtration efficiency diminishes. Therefore, the most appropriate action is to throw it away and replace it with a new filter.

Using methods like brushing, solvent cleaning, or air cleaning are not suitable for disposable filters, as these actions do not restore their filtering capabilities and can even damage the filter material. Thus, disposal is the best practice to ensure the functionality of the air filtration system is maintained.