PUREFLOW 2011 BMW Alpina B7L xDrive Cabin Air Filter with Antibacterial Technology, PC4329X Model_SL63 AMG S E Performance 2004-03 GMC Sierra 2500 HD

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PUREFLOW 2011 BMW Alpina B7L xDrive Cabin Air Filter with Antibacterial Technology, PC4329X Model_SL63 AMG S E Performance 2004-03 GMC Sierra 2500 HD1st Stage: Particulate filtration media captures and eliminates matter such as dust and pollen. Electrostatically charged to attract and lock fine particles of dust while allowing high flow and high capacity. 2nd & 3rd Stage: Activated charcoal adsorbs harmful gases like carbon monoxide and sulfur dioxide. This layer is combined with baking soda to absorb bad odors. 4th Stage: Advanced antibacterial micro technology reduces biofouling by suppressing