Air filters for your forced air furnace come in all types, shapes and sizes. They can range in price from inexpensive to costly. Which do you have? A pleated filter? A media filter? Do you have a filtering system? Is it getting the job done? How often do you change your filter? Once a month or once a year? Do you have pets? Does anyone in your home have allergies? Each house is unique and your lifestyle needs to be considered. Watch this short informational video and decide for yourself.
The following video is from the U.S. Inspect Video Library: