There are a lot of measures you should take to make sure that your air conditioner is kept in good shape throughout the summer season. Most of the best ways to keep your air conditioner running properly involve HVAC maintenance. Scheduling professional services, especially preventive regular maintenance. However, there is also a specific step that you can personally take to keep your system healthy. Let’s have a look at the air filter, why it’s important, and how to keep it from harming your air conditioner.