The Ultimate Guide to Car Cabin Filter

car cabin filter

The Ultimate Guide to Car Cabin Filter

Car cabin filters filter and clean the air that flows into the car. They help prevent allergens such as: pollen, dust, dirt, mold and odors from entering into the car’s ventilation systems.

It is beneficial to anyone who wants to improve the air quality in their car and especially helpful for those who suffer from allergies, asthma or have children and/or pets.

It helps prevent microscopic particles from entering the car by trapping them in the cabin filter’s media.

Filter is constructed using a triple-layered, micro fiber filter media. Each layer is progressively denser and traps different sized particles.

Filters and Features of Car Cabin Filter

Washable/Reusable Filters

Filters that do not need replacement for an extended amount of time based on manufacturer and can be hand-washed and reused.

Replacement Filters

Most cabin air filters are replaceable filters. These filters have exacting standards maintained by the Institute of Environmental Sciences and Technology (IEST).

High Efficiency Particulate Air Filters (HEPA Filters)

These cabin air filters are made of media with randomly-arranged fibers. HEPA filters must be capable of capturing particles of 2 microns or larger, such as pet dander and dust, at an efficiency level of 99%.

True HEPA Filters

These filters use the same method as HEPA filters, however have even more rigorous standards. True HEPA filters must have capability of capturing particles of 0.3 microns at an efficiency level equal or greater to 99.97%. For example, typical mold spores can measure between 1.0-10 microns in size. Pollen often measures between 10-100 microns in size.

What to Consider When Buying Car Cabin Filter


Firstly, cabin air filter selection ranges in price from USD5-50. Higher-end filters will have advanced features and are washable/reusable.


Secondly, a cabin air filter should be changed every 12,000-15,000 miles or every 12 months. However, the service interval can vary based on driving habits. You would be better to follow the manufacturer’s guidelines for specific replacement instructions.

Find the Right Fit

Thirdly, size and shape of a cabin air filter is dependent on each manufacturer. To find the correct fitment for your vehicle, you need to know your car’s year, make and model or parts number.

Replacement Installation

Lastly, replace filters according to the car’s owner manual. Replacement might takes under 15 minutes for most models and requires no tools. Many car manufacturers have begun incorporating filters into the HVAC systems of their cars. These filters are typically located: under the dashboard, behind the glovebox, under the hood or near the windshield.

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Thank you for useful information.

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