How A Dirty Air Filter Affects Your Home's HVAC
Changing out the air filter inside your home is one of the easiest jobs a homeowner can perform and should be a part of their regular maintenance. It takes less than five minutes to climb up a step ladder (or however you access your air filter), remove the old one, and replace it with a new air filter. It doesn't cost much, and according to professionals, it should be done at least once every two to six months, depending on the season.