TYC Cabin Air Filter for INFINITI QX56 (2004-2008); NISSAN Armada (2004-2007), Titan (2004-2008) A8044P Helps reduce airborne pollutants and dust that can aggravate respiratory problems such as allergies. Reduces exhaust pollutants such as nitrogen oxide, sulfur dioxide, hydrogen sulfide Increases the efficiency of the HVAC system It is recommended to replace this filter approximately every 12,000 miles Brand New!!