PUREFLOW 2021 Cadillac XT4 Cabin Air Filter with HEPA and Antibacterial Technology, PC4211HX YGroup_PC5586X Its advanced multi-layer filtration helps

Its advanced multi-layer filtration helps maintain clean cabin air and consistent HVAC performance for a fresher

and lingering smells that build up in your car over time

This layer is combined with baking soda to absorb bad odors

clean air without adding scent

97% efficiency

PUREFLOW 2021 Cadillac XT4 Cabin Air Filter with HEPA and Antibacterial Technology, PC4211HX YGroup_PC5586X Its advanced multi-layer filtration helps1st 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