This particular filter's arrows do not indicate the airflow direction, they simply indicate the orientation it should be installed. For more information on the difference between "UP" arrows and "Airflow Direction", watch the video below: ruclips.net/video/B2LYwK7TsQA/видео.html Purchase this filter: filterheads.com/products/cabin-air-filter-air-qualitee-aq1102c
This particular filter's arrows do not indicate the airflow direction, they simply indicate the orientation it should be installed. For more information on the difference between "UP" arrows and "Airflow Direction", watch the video below:
ruclips.net/video/B2LYwK7TsQA/видео.html
Purchase this filter: filterheads.com/products/cabin-air-filter-air-qualitee-aq1102c