You have the choice when it comes to the type of air filters you use with your home air conditioning/heating system. You can select flat panel air filters or pleated air filters. In short, pleated air filters trap more particles than the flat panel filters, and they generally increase your air conditioner’s energy efficiency.
Pleated air filters can be purchased in a variety of MERV ratings and sizes, and range in thickness of two inches to six inches thick.
Key benefits of a pleated air filter:
Removes more particles than standard filters
Lasts longer than standard filters, usually 60 to 90 days
Does not have a major impact on system airflow
More energy-efficient alternative to flat filters
Better air filtration option than flat filters