Now really, how often do you really need to change your home air filter? It is recommended that you should change your air filter in your home every 30 days. Some high-end pleated filters can last as long as six months. So if you can't remember the last time you changed your filter...hit us up. We have awesome maintenance plans that come with air filters. thigpenhvac.com/air-filters-jacksonville-fl #acrepair #airconditioningrepair #duval