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Why Is It Important to Change Out Your Cabin Air Filter?

If you're not an automotive technician, you have probably never heard of or cared for your vehicle's cabin filter. But the fact is, all cars have one. Cabin filters purify air by removing smoke, dust, allergens, and much more. Over time, the filter can get dirty and clogged, becoming ineffective. This is why mechanics stress the importance of changing your filters on time, and the cabin air filter is no exception.

What happens if you don't replace cabin air filters?

It can be considered dangerous if the cabin filter isn't changed on time. Here's what could happen if you leave a dirty filter in your car too long:

Health Issues

The cabin filter makes sure the air that comes out of your vents is safe to breathe. When the filter gets filthy, that's when breathing can become an issue. The cabin air filter is something individuals with asthma, or other health issues should be especially concerned about. 

Foggy Windows

The cabin air filter helps minimize the condensation on your glass surfaces. If it's blocked or dirty, the windows will fog up, making it very difficult for drivers to see through their windshield.

Foul Smells

It's normal for your vehicle to have a unique smell, but when it starts smelling musty, it usually means that the cabin air filter needs a change. If you feel like you need to air out your car constantly, it's best to get your filter changed.

HVAC Inefficiency

When the cabin air filter is contaminated, your HVAC system will have to work harder to get a good airflow going out of your vents. As a result, you may burn more gas or not get the temperature you desire.


You should have your cabin air filter replaced at least once every year. If you need your filter replaced or any other auto maintenance in Charlotte, NC, we invite you to Woodie's Auto Service & Repair Centers.

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