How to Distinguish the Front and Back Sides of an Air Conditioning Filter?
1 Answers
The arrow direction on a car's air conditioning filter actually indicates the front and back sides of the filter. The direction of the arrow represents the airflow direction, which is also the installation direction. If the arrow points upward, that is the front side, and it should be installed facing the airflow direction. Alternatively, you can determine the front and back sides by observing the surface of the air filter. The ordinary fuzzy side is the front, facing upward toward the airflow direction, while the side with a support wire structure is the back, facing away from the airflow direction. For filters containing activated carbon, the black side facing the airflow is the front, and the white side facing away is the back. Here is some related information about air conditioning filters: 1. Replacement Cycle: The replacement cycle for a car's air conditioning filter depends on individual driving habits, external environmental conditions, and seasonal climate. Generally, for urban household cars, it should be replaced every 10,000-20,000 kilometers or once a year. If the driving environment is poor with a lot of dust, the filter may get dirty more easily, and the replacement cycle should be shortened accordingly. Additionally, the frequency of air conditioning use varies by season, so the replacement cycle may differ. During seasons with less air conditioning use, such as summer and autumn, the replacement cycle can be slightly longer. 2. Precautions: The air conditioning filter tends to accumulate a lot of dust. You can use compressed air to blow away loose dust, but never wash it with water, as this can easily damage it. Over time, the activated carbon filtration function in the air conditioning filter will diminish, so it is recommended to replace the filter at a 4S shop.
