Your heating, ventilation and air conditioning system is the lungs of your home, and your HVAC filter helps keep your home’s lungs clean and free of obstructions — and your actual lungs in the process. Unfortunately, as your local HVAC professional will likely tell you, homeowners typically neglect to change their filters often enough — if they change them at all. Learn how in this video.
![](https://picsum.photos/id/702/2632/1384.jpg)