BOSCH C3723WS Activated Charcoal Workshop Cabin Air Filter - Compatible with Select BMW X1, 1 M, 128i, 135i, 135is, 323i, 325i, 325xi, 328i, 328xi, 330Ci, 330i, 330xi, 335d, 335i, 335is, 335xi, Xdrive

Bosch Activated Charcoal Workshop Cabin Air Filters are designed to absorb foul smells in addition to capturing dust particles and harmful elements. This results in a noticeable improvement in the air quality inside the vehicle. Bosch Activated Charcoal Filters go one step further than particulate filters. Bosch Activated Charcoal Cabin Air Filters have a 5-layer design that includes an additional carbon layer that absorbs toxic and foul-smelling gases such as ozone, nitrogen oxide, sulfur dioxide and hydrocarbons, and an additional cover layer for extra protection. Bosch Activated Charcoal Workshop Cabin Air Filters feature high pleat counts that provide greater surface area for higher filtration capacity. Foam perimeter gasket (select part numbers where specified by OE) prevents harmful particles from bypassing the filter media. Rigid frame (select part numbers where specified by OE) adds stability for peak performance and long service life.

• Bosch Activated Charcoal Workshop Cabin Air Filters feature a multi-layer 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 - Non-woven pre-filter layer captures larger particles
• 2nd Layer - Electrostatically charged microfiber layer attracts and holds elusive smaller particles
• 3rd & 4th Layers - Non-woven 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 foul-smelling 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): BMW: 2011 1 Series M, 2008-13 128i, 2008-13 135i, 2013 135is, 2006-11 323i, 2006 325i, 2006 325xi
• Compatible with (continued): BMW: 2007-13 328i, 2009-13 328i xDrive, 2007-08 328xi, 2006 330Ci, 2006 330i, 2006 330xi, 2009-11 335d, 2007-14 335i, 2009-13 335i xDrive, 2013 335is, 2007-08 335xi, 2013-15 X1