MicronAir Particle Cabin Air Filter, fits Kia Sedona 2006-2013 requires 1 filter, Hyundai Tiburon 2003-2008 requires 1 filter, Entourage 2007-2008 requires 1 filter, Elantra 2001-2010 requires 1 filter. Traps Harmful pollutants before they reach your vehicle's interior and provides cleaner air for allergy and asthma sufferers. Vehicle manufacturer recommends filter be changed every 6 to 12 months.