1. Filter paper quality

High quality filter paper and filter paper is almost the same. The filter quality is directly related to the filter efficiency, high-quality filter impurities to more inferior paper less, no protection, the relevant parts of the engine is easy to wear.

2. Filter efficiency

Mainly by the filter used in filter paper quality is decided, the filter efficiency of more than 96% of the filter can be regarded as qualified products. At the same time and place, different manufacturers filter effect is not the same, the obvious difference in the engine starting and running, the driver of the engine and automobile exhaust smoke feeling size, engine parts in repair of wear are obvious differences.

3. Filter paper and end caps

There is a high quality paper, adhesive have good qualities, such as improper selection, filter in the filter paper and the upper and lower end cap binding is not strong, encountered in the process of using oil and non sticky, easy to fall off, causing a short circuit, no filtering function.

4. Guarantee of filter production process

On the surface, there is no adhesion between filter paper and filter paper, and it must be transmitted under the light. If you can not see light in the light, the adhesion between filter paper will affect the flow of the entire filter, short life, resulting in lack of power, weakness, in the cleaning process is not easy to get rid of dust. High quality filter paper is not adhesion, with strong light transmittance, suitable for engine intake standard, long service life, easy to clean.