Breath cleaner air free of pollen, bacteria, dust, and mold with this high-quality OEM cabin filter. Cabin filters are designed to capture soot, dirt, pollen, and other pollutants that enter your car through its heading, A/C, and defrost systems. In addition, a cabin filter is a critical part of the HVAC system. If the filter becomes dirty of clogged, less air will be able to pass through the filter. This will adversely affect the operation of the HVAC system. Cabin filters are very easy and quick to replace. On average, it takes just 15 minutes to change a cabin air filter.