From picking the wrong filter type to making costly HEPA missteps, knowing these HVAC air filter mistakes can help you avoid headaches and unnecessary expenses.

Running your furnace, central air, or heat pump probably constitutes a big part of your utility bill. But it’s a small, often inexpensive part—the air filter—that keeps these heating and cooling ...

A cabin air filter is behind the dashboard and cleans the air coming into your car’s interior through the heating, ventilation and air-conditioning systems. It’s recommended to change your filter ...

We independently review everything we recommend. We may make money from the links on our site. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...