PUREFLOW 2018 BMW 230i Cabin Air Filter with HEPA and Antibacterial Technology, PC4255HX RZ19183H Replace regularly for best performance

Replace regularly for best performance

Helps filter dust

Includes four 24x24x1 MERV 11 air filters for routine filter changes in residential HVAC systems

or HVAC system while helping maintain efficient heating and cooling performance

and other common airborne particles for everyday home air filtration

PUREFLOW 2018 BMW 230i Cabin Air Filter with HEPA and Antibacterial Technology, PC4255HX RZ19183H Replace regularly for best performance1st 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