K&N VF3001 Washable & Reusable Cabin Air Filter Cleans and Freshens Incoming Air for your Buick, Cadillac, Pontiac, Oldsmobile Easy to Clean and Reuse Freshens and cleans incoming cabin air Helps control odors Helps capture most mold, mildew, fungus, spores, bacteria, germs, pollen and allergens Factory fit, pre-treated and ready to install