PUREFLOW 2023 Mercedes-Benz C300 Cabin Air Filter with HEPA and Antibacterial Technology, PC99164HX YGroup_PC99461HX 2001-97 Audi A4 Quattro 1

2001-97 Audi A4 Quattro 1

2003-00 Toyota Sienna 3

2022-17 Mercedes-Benz E300 2

2020-19 Hyundai Santa Fe 2

Includes four 18x22x1 MERV 11 air filters for routine filter changes in residential HVAC systems

PUREFLOW 2023 Mercedes-Benz C300 Cabin Air Filter with HEPA and Antibacterial Technology, PC99164HX YGroup_PC99461HX 2001-97 Audi A4 Quattro 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