How to Distinguish the Front and Back Sides of a Car Air Conditioning Filter?
1 Answers
Distinguishing the front and back sides of a car air conditioning filter can be done as follows: 1. Determine by the arrow direction on the car air conditioning filter: The arrow direction on the car air conditioning filter actually indicates the front and back sides of the filter. The direction the arrow points represents the airflow direction, which is also the installation direction. If the arrow points upward, that is the front side, which should face the airflow direction during installation. 2. Judge the front and back sides by observing the surface of the air filter: The ordinary fuzzy side is the front side, facing upward towards the airflow direction, while the side with a support line structure is the back side, facing away from the airflow direction. For filters containing activated carbon, the black side facing the airflow direction is the front side, and the white side facing away from the airflow direction is the back side.