What's the Difference Between Good and Bad Car Air Filters?

1 Answers
SanJoanna
07/30/25 4:06am
The differences between good and bad car air filters are as follows: 1. Filter Paper: A good air filter has uniformly colored filter paper with a flat surface and more fibers on the windward side, providing better filtration and trapping more impurities; whereas a poor-quality air filter has inferior filter paper with a smoother surface. 2. Structure: A good air filter features hard plastic reinforcement ribs to effectively prevent filter paper deformation; a poor-quality air filter uses a one-piece molded structure without any reinforcement measures, making it prone to deformation. 3. Number of Folds: A good air filter has more folds in the filter paper, increasing the filtration area and improving efficiency. In contrast, a poor-quality air filter has fewer folds, resulting in lower filtration efficiency.
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