PUREFLOW 2017 Mercedes-Benz SL500 Cabin Air Filter with HEPA and Antibacterial Technology, PC5844HX Model_RS7 Sportback 2018-14 Porsche 911 3

2018-14 Porsche 911 3

2018-15 BMW X4 2

Designed with MERV 11 rated multi-layer filtration media

2021-17 BMW 230i xDrive 2

PUREFLOW 2017 Mercedes-Benz SL500 Cabin Air Filter with HEPA and Antibacterial Technology, PC5844HX Model_RS7 Sportback 2018-14 Porsche 911 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