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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 ones 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.