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): BMW 525i (2004-2007), 525xi(2006-2007), 528i(2008-2011), 528i xDrive(2009-2010), 528xi(2008), 530i(2004-2007), 530xi(2006-2007)
BMW Compatible List (2): 535i(2008-2010), 535i GT(2010), 535i xDrive(2009-2010), 535xi(2008), 545i(2004-2005), 550i(2006-2010), 645Ci(2004-2005), 650i(2006-2010), M5(2006-2010), M6(2006-2010), Replace for 64-31-9-171-858
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