No cabin filters until the WJ.
Go to your local parts store (might end up at an auto paint store, but AutoZone and Checker usually have the consumer version) and get a bottle of Meguiar's Odor Remover. Heavier-duty than Febreeze, and there isn't much it won't get rid of in one or two applications.
2006 WK Laredo 4x4 4.7L
1993 ZJ Laredo 4x4 4.0L — Dead, sold, and rolling again