Premium Guard PC5661 Cabin Air Filter Premium Guard Cabin Filters prevents harmful spores and pollen from entering the vehicle cabin while keeping passengers protected. We have maximized the filtration area in our cabin filters without affecting the free-flow of air into the passengers' cabin. Compatible with Hyundai Sonata, Kia Optima, Hyundai Azera, Hyundai Santa Fe. Precisely designed for Hyundai, Kia cabin air filter requirements. Cabin Air Filter installs smoothly with easy-to-follow product replacement instructions inside each Premium Guard Cabin Air Filter box. Installation only takes a few minutes in most cars. Replaces Hyundai/Kia 97133-3K000 cabin air filters