EXCEL C35519[R] Premium Cabin Air Filter Provides Clean Air for You and Your Passengers ; Recommended Replacement Interval Every 12,000 miles Removes Solid Contaminants Like Dust, Pollen and Soot. Cabin Air Filter Fails or Becomes Clogged, The Pollutant Concentration in the Interior of the Vehicle Can Become 6 Times That of the Outside Air. Quick Handling Super Fast Ship.