Backed by the Motorcraft Service Parts Warranty which offers 2 years unlimited mileage limited labor cost and no commercial exceptions. Warranty is supported nationwide by Ford/Lincoln dealers and Ford Authorized Distributors. Air filters should be replaced every 12 months or 15 000 miles - check Owner s Guide for specific recommendations. Electrostatically charged layer captures soot smog and tobacco smoke. Particulate layer protects HVAC components by restricting dust mold spores pollen and fungus. Reduces dust inside the vehicle. Captures 90% of particles 10 microns or larger (for comparison an average grain of sand at the beach is 200 microns). Dual layer construction with a meltblown layer that contains fibers that capture sub-micron particles. Rigid polyester spunbound material used for frame in most models the framing material is laminated with a lofty polyester layer to help reduce unfiltered air by-pass. Materials meet Ford Engineering requirements for resistance to odor propagation and anti-microbial properties. Motorcraft Cabin Air Filters help keep the air flowing through the HVAC system clean and free from harmful particulates. Vehicle Linkages Car/Truck Ford Freestar: 2004 - 2007 Windstar: 1999 - 2003 Mercury Monterey: 2004 - 2007