What is a cabin air filter? ... Its job is to filter all of the air that comes through the car's HVAC system (Heater/AC System) to prevent pollutants, such as dust, pollen, smog and mold spores from entering. The filters can also catch rodent droppings, leaves and other unwanted debris.
When should you replace your cabin air filter? Most vehicle the Cabin Air filter should be changed every 20-25,000km or once a year.
When Was the last time your Cabin Air Filter changed??