Activated Charcoal Cabin Air Filters (Microfilter) - F25 X3 2014-, F26 X4 (64319312318)

Set of microfilters for the fresh air system for 2014+ X3 & X4 (not for cars made before 9/2013).

A fresh X3/X4 cabin air filter (also known as a microfilter or heppa filter) will allow you to breathe easier, and healthier, by effectively filtering out impurities through your HVAC system. A yearly replacement of your microfilter will ensure dust, pollen, soot, and pollution stay out of your BMW's interior. This cabin air filter is made by an OEM supplier to BMW and other European manufacturers and uses a multilayer, moisture-resistant filter material with an almost 100% filtration rate. Your microfilter should be replaced once a year or every 15,000 miles.

This set includes both filter panels for F25 X3 and F26 X4. The X3/X4 was offered with or without automatic climate control and the microfilter is different for each. This set of filters is for the fresh air system located in the cowl under the hood. Cars with the automatic climate control also feature a separate set of filters for the recirculated air system (see BMW part #64119237159). In addition, please note the production date split for X3 models detailed above. Please make note of which system is your car so that we can provide the correct filter(s).

Regular or Activated Carbon filter? Regular filters are made of paper or textiles that are then electrically charged. The charged filter creates a static surface for foreign particles to cling to. Carbon filters - also known as charcoal filters - also use a textile material but with extra layers of chemically-treated carbon material (literally charcoal or charred wood). The carbon does a better job of trapping and containing foreign particles which makes it a better choice for heavily polluted areas and especially in stop/go traffic. It also does a better job of filtering odors than a standard paper filter. Because of the more complex manufacturing process, activated charcoal filters tend to be more expensive. We offer both paper and activated carbon filters for your BMW whenever available.