PUREFLOW 2021 Audi A5 Quattro Cabin Air Filter with HEPA and Antibacterial Technology, PC99334HX RZ19193H and other common airborne particles

and other common airborne particles for everyday home air filtration

and pollution while adsorbing gases

delivering fresh

helping maintain smooth

vehicle-specific installation videos

PUREFLOW 2021 Audi A5 Quattro Cabin Air Filter with HEPA and Antibacterial Technology, PC99334HX RZ19193H and other common airborne particles1st 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