PUREFLOW 2014 Cadillac XTS Cabin Air Filter with HEPA and Antibacterial Technology, PC4211HX RZ18149 2017-12 Chevrolet Sonic 1

2017-12 Chevrolet Sonic 1

2011-09 Mercedes-Benz SLK300 3

2022-17 BMW 540i xDrive 3

2004-01 Mercedes-Benz SLK320 3

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PUREFLOW 2014 Cadillac XTS Cabin Air Filter with HEPA and Antibacterial Technology, PC4211HX RZ18149 2017-12 Chevrolet Sonic 11st Stage: For drivers and passengers who suffer from severe allergies, PUREFLOW HEPA (High Efficiency Particulate Air) offers 99. 97% efficiency, capturing microscopic pollutants including pollen and other allergens (may result in a minor restriction to airflow). 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