PUREFLOW 2009 Mercedes-Benz S450 Cabin Air Filter with HEPA and Antibacterial Technology, PC4218HX Yukon XL 2016-10 Mercedes-Benz E350 3

2016-10 Mercedes-Benz E350 3

2009-07 Lexus RX350 3

Includes four 16x20x1 MERV 11 air filters for routine filter changes in residential HVAC systems

2018-15 Chevrolet Silverado 2500 5

2018-17 Audi A7 Quattro 2

PUREFLOW 2009 Mercedes-Benz S450 Cabin Air Filter with HEPA and Antibacterial Technology, PC4218HX Yukon XL 2016-10 Mercedes-Benz E350 31st 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