Four Layers: made of Four layers filtration materials included MERV 13 filter media and premium activated carbon
More than 99% Average Arrestance: with ASHRAE52.2:2017 10.8 test method, this filter offers more than 99% Average Arrestance, it can provide clean and fresh air for the carriage
MERV 13 Filter Media: made of tested MERV 13 filter media (ASHRAE52.2:2017 12), offers a superior balance between filtration and air flux, detailed test report included in the package
BMW Compatible List (1): 1 Series M (2011),128i(2008-2013),135i(2008-2013),135is(2013), 325i(2006), 325xi(2006), 328i(2007-2011), 328i(2012-2013, 3.0L L6, Does Not Fit For 2.0L L4), 328i xDrive(2010-2012), X1(2012-2015)
BMW Compatible List (2): 328i xDrive (2013, 3.0L L6, Does Not Fit For 2.0L L4), 328xi(2007-2008), 330i(2006), 330xi(2006), 335D(2009-2011), 335i(2007-2011), 335i xDrive(2009-2011), 335is(2011-2013), 335xi(2007-2008)
Easy Installation: provides the same exact size as OEM, it can be easily installed and it is important to check the airflow direction markings during installation
Replace on Time: cabin air filter is kind of consumable as dust and dirt will accumulate on the inlet surface, please replace every 12 months, 12,000 miles or follow the manufacturer's requirement