BOSCH C3740WS Activated Charcoal Workshop Cabin Air Filter Compatible with Select Audi 90 90 Quattro A4 A4 Quattro Cabriolet S4 Volkswagen Passat

Bosch Activated Charcoal Workshop Cabin Air Filters feature a multilayer media that offers a 99 percent efficiency rate at 3 microns or greater in keeping dirt and other particles from entering vehicle heating and air vents 1st Layer Nonwoven prefilter layer captures larger particles 2nd Layer Electrostatically charged microfiber layer attracts and holds elusive smaller particles 3rd 4th Layers Nonwoven cover layers add stability to protect the microfiber layer from damage and act as an additional barrier to harmful elements 5th Layer Activated charcoal layer absorbs toxic and foulsmelling gases such as ozone nitrogen oxide sulfur dioxide and hydrocarbons which results in fresher smelling air and reduced windshield hazing Compatible with select vehicles Note vehicle trim level may affect fitment verify specific vehicle fitment details with fit checker above AUDI 199395 90 199395 90 Quattro 199601 A4 199601 A4 Quattro 199498 Cabriolet Compatible with continued AUDI 200002 S4 VOLKSWAGEN 199801 Passat