When installing the cabin air filter, always observe the air flow direction of the filter. This is indicated by an arrow on the filter. Superior filter Performance Design: Significantly high filter efficiency for fine dust with a low pressure loss leads to flawless air flow. Permanent NOx reduction – a novelty in the market: The filter binds the NOx as salt and also doesn’t release it even when disposed. Therefore, the filter permanently and sustainably reduces NOx in the environment and directl
