An air conditioning unit is a complex system with many components. Although regular maintenance and any necessary repairs should be done by professionals, there is one thing you can–and should!–do yourself to keep your air conditioner running as efficiently as possible and decrease the likelihood of costly repairs down the line. Changing the air filter is a simple process and will only take a moment. If you’re unsure what to do, we’ve got you covered. Follow these directions, and your air conditioner will thank you.