PUREFLOW 2013 BMW 750i xDrive Cabin Air Filter with Antibacterial Technology, PC4329X S580 Includes four 16x20x1 MERV 11

Includes four 16x20x1 MERV 11 air filters for routine filter changes in residential HVAC systems

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PUREFLOW 2013 BMW 750i xDrive Cabin Air Filter with Antibacterial Technology, PC4329X S580 Includes four 16x20x1 MERV 111st Stage: Particulate filtration media captures and eliminates matter such as dust and pollen. Electrostatically charged to attract and lock fine particles of dust while allowing high flow and high capacity. 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 antibacterial micro technology reduces biofouling by suppressing