To properly maintain your home's heating and cooling system, be sure to regularly replace air filters. Air filters are designed to last about three months. If you have pets, kids or allergies, it is recommended to change home air filters more often.Learn More
When choosing the right air filter for your home's heating and cooling system, be sure to choose the correct size. First, look at the size on the filter currently in your unit. If that's not an option, you can also use a tape measure to find the exact length, width and depth. If necessary, round up to find the correct size air filter for your home.