Yuanfilter replacement negative oxygen ions cabin filter for BMW 1 (F20, F21)O.E. number is 64119237554. As you may know, mildew and mold spores are prevalent in our environment, particularly in damp and warm conditions. Therefore, it is essential to have a cabin filter that not solely protects against these contaminants in the outside air but also prevents mold growth on the filter itself. Our advanced negative ion oxygen air conditioning filter is meticulously crafted from multi-layer fiber and state-of-the-art materials. It provides powerful filtration capabilities, effectively combating mold and contributing significantly to the well-being of all vehicle occupants.In addition to its mold-fighting properties, the filter inhibits bacteria, purifies exhaust gases, rapidly decomposes harmful substances such as formaldehyde, and eliminates unpleasant odors.

One of the filter’s standout features is its ability to generate a substantial amount of negative oxygen ions, reminiscent of the fresh air found in nature. This product produces small-particle negative oxygen ions at an impressive rate of 12,500 ions/cm³, effectively transforming your vehicle into an”in-car oxygen bar”that mimics the natural freshness of the outdoors.