How to Identify the Front and Back Sides of an Air Filter?
1 Answers
Methods to distinguish the front and back sides of an air conditioning filter include: 1. The arrow direction on the car's air conditioning filter indicates the front and back sides. The arrow points in the direction of airflow, 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. Determine the sides by observing the surface of the air filter. The ordinary fuzzy side is the front, facing upward towards the airflow direction, while the side with a support line structure is the back, facing away from the airflow direction. For filters containing activated carbon, the black side should face the airflow direction (front), and the white side should face away (back). Additional information about air conditioning filters: 1. During operation, the engine inhales a large amount of air. If the air is not filtered, the dust suspended in the air will be drawn into the cylinders, accelerating the wear of the piston group and cylinders. Larger particles entering between the piston and cylinder can cause severe cylinder scoring, especially in dry and sandy working environments. The air cleaner, installed in front of the carburetor or intake pipe, filters out dust and sand from the air, ensuring that sufficient and clean air enters the cylinders. 2. Although the air conditioning filter does not directly affect the car's technical performance, it significantly impacts the lifespan of the car (especially the engine) in practical use.
