Bosch HEPA cabin air filters provide ultimate protection in trapping allergens, dust, and other particulates that can enter your vehicle in order to provide the cleanest ambient air possible for you and your family. Designed and tested to meet high efficiency particulate air (HEPA) standards based on test standard ASTM D2986, Bosch cabin air filters provide filtration efficiency of 99.97% at 0.3 microns. Features and Benefits: High efficiency particulate cabin air filters are designed to trap microscopic pollutants including pollen, mold and common allergens Melt-blown electrostatic layer and very dense media provides greater trapping capabilities Additional static cotton layer added to HEPA media to provide high capacity in holding Small particulates Structural ribs added to provide increase stability of filter Cabin air filters should be replaced at least once every 12 monthsPart #'s64-31-9-313-519 / 64 31 9 313 519 / 6431931351964-31-9-142-115 / 64 31 9 142 115 / 6431914211564-31-6-946-628 / 64 31 6 946 628 / 6431694662864-31-6-962-549 / 64 31 6 962 549 / 6431696254964-31-9-313-517 / 64 31 9 313 517 / 64319313517
