What Is A Cabin Air Filter And Why Is It Important?

If you look behind your dash, you’ll find a cabin air filter. It may look like a simple part, but it singlehandedly keeps the air in your cabin clean. It’s a much more important part than it seems. In this guide, you'll learn all about cabin air filters.

How a Cabin Air Filter Drastically Improves the Air Inside Your Cabin

A cabin air filter is a square or rectangular pleated filter. It's situated behind the dash, between the A/C vents and the rest of the HVAC system. The cabin air filter's job is to trap the dirt and debris in the air coming into the cabin from outside of the vehicle. With a good cabin air filter in your car, the air in your cabin will always be clean.

While everyone enjoys clean air, a cabin air filter is especially beneficial to those who have allergies and respiratory issues. Also, a cabin air filter helps a lot when you're driving in dusty or smoggy conditions.

What Happens When a Cabin Air Filter Gets too Clogged Up

Changing filter

Image Credit: Pauls Travel Pictures

Under normal conditions, a cabin air filter lasts about 12K-15K miles. Your cabin air filter may last longer, or it may go bad before the 12K mile mark. Your cabin air filter's longevity depends on some factors, including:

  • The quality of the air filter
  • The quality of the air outside

When your cabin air filter gets too clogged up, you'll experience some symptoms, including:

  • Weaker airflow though the A/C vents
  • Musty smell in the cabin
  • Increased allergy and respiratory issues

Checking and Replacing Your Cabin Air Filter

OEM filter

A lot of people check their cabin air filters once a year, usually before allergy season. It's actually quite easy to check your cabin air filter. You would just have to pull it out and then visually inspect it to see if it's still good to use. Here's a good tutorial to follow

Replacing your cabin air filter is even easier. All you have to do is to pull out the old filter and then put in the new one. There's really no need to bring your Mazda to a dealer. You can order a genuine OEM Mazda cabin air filter online for a lot less money than what you would pay at a dealership. In fact, we offer wholesale pricing for genuine OEM Mazda cabin air filters. Get yours today!