Purolator C36111-3PK PurolatorONE Cabin Air Filter, 3 Pack Stops allergens, pollen, dust mites, dirt and soot - as well as toxic fumes and odors (carbon applications) from entering the passenger compartment of your vehicle Protects up to 12 months or 12,000 miles Encourages better airflow and improves defroster and A/C performance Easy-to-follow instructions included in every box - easy to replace (most applications)