Smallest Octopus Species Enthralling CloseUp of a Miniature BlueRinged Octopus in a TiltShift Blue Ringed Octopus Brightly Colored Blue Ringed Octopus Is One Of The Subaru Genuine OEM Interior Cabin Filter. If the air coming out of your vents smells a little funnylike mildew or funkor if your windshield fogs up with the A C on, your Subaru may have a clogged cabin filter. Many manufacturers recommend replacing the cabin filter, or pollen filter, as part of its scheduled maintenance. What do they do? Cabin air filters trap foreign particles from outside air that are drawn in through your HVAC (Heating, Ventilation and Air Conditioning) system, like: Dust particles Allergens and pollutants Mold spores Bacteria Debris When should they be replaced? Its best to replace your cabin air filter every 20,000kms*, or if you experience any of the following: Decreased airflow of hot or cold air Unpleasant smell coming from vents Overdue service interval mileage A clean cabin air filter not only helps ensure the quality of air that you and your passengers breathe inside your Subaru, it also optimizes airflow when using the heat, defrosters or air conditioning. Why use Genuine Subaru Cabin Air Filters? Exact fit into your HVAC system Engineered materials trap microscopic particles Ensures maximum air flow Generic cabin air filters may decrease heating and air conditioning performance * This mileage is based on the Maintenance Schedule intervals found in your Warranty & Maintenance Booklet. Your interval may be longer than 20,000 kms, depending on which Subaru vehicle you drive. The cabin air filter may need to be replaced sooner or more often due to road conditions, weather and your individual driving habits. Vehicle Fitment: 2006 2008 Subaru Forester SG Inc XT (Facelift Models Only)