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Learn More About Car Cabin Air Filters

If you have a question about car cabin air filters that is not covered here, please e-mail us at and we will do our best to answer it.

What is a car cabin air filter?

Many car owners don't even realize that such a part exists in their vehicles, much less if it ever needs to be changed. But, no matter if they know it or not, a cabin air filter is an essential part of your car's ventilation system that removes pollutants from the air before they get inside the passenger compartment. They were originally designed to remove solid contaminants like dust and soot from circulating inside your vehicle, but can now also absorb gases and odors. Cabin air filters may also be know as passenger compartment filters, interior ventilation filters, pollen filters or dust filters.

Why are the cabin air filters used?

It is an undisputed fact that roadways (especially major highways, especially during rush hours) are some of the major sources of air pollution. Therefore, as you are driving, you are forced to breathe the air tainted with exhaust fumes, dust and soot particles, many of which may pose a serious hazard to your health.

The cabin air filter is there to prevent all those pollutants from entering the passenger compartment.

Why and how often should you change the cabin air filter?

Eventually, a cabin air filter starts to lose its effectiveness, as it gets dirty with use. This may result in unpleasant odor, and decreased heating and air conditioning performance caused by restricted airflow through the filter.

It is recommended to replace the cabin air filter at least once a year or every 12,000 to 15,000 miles - more often if your vehicle is operated primarily in areas of heavy pollution or dusty conditions.

Are cabin air filters difficult to replace?

Cabin air filters are typically located under a vehicle's dashboard or attached to the glove box. Others may be located in the engine compartment. In nearly all cases, Cabin Air Filters can be changed in as little as 10 minutes.

For instructions on replacing the cabin air filter on a particular car model, go to the Car Cabin Air Filters Main Page and find your vehicle under the appropriate category.

What is the difference between a particle and a carbon filter?

A carbon filter includes a layer of activated carbon which absorbs unpleasant odors as well as irritating particles.

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