The main function of the filter inside the car is to filter, filter air, fuel and oil. Therefore, to measure the quality of a filter, it is mainly based on the following indicators: rated flow rate, filtration efficiency, dust (ash) capacity, service life and sealing performance. The above technical indicators are not proportional to the weight of the filter.

For example, the rated flow rate, filtration efficiency, dust (ash) capacity, service life and other indicators, mainly depend on the technical characteristics and quality of the filter material and the forming structure of the filter element, which are not directly related to the weight of the filter.

What kind of material the filter chooses and what kind of filter core structure is used is determined by the design needs of the filter itself, and the heavier the material is the more suitable for the model used.
For example, the same oil filter, if the use of heavy weight filter material, may significantly increase the overflow resistance, reduce the flow, thereby increasing the energy consumption during vehicle driving, and even fail to meet the engine's demand for oil flow, resulting in insufficient oil lubrication phenomenon.

Therefore, the heavier the material selection is not necessarily the better.

For example, the sealing performance of rotary filter mainly depends on the performance of the sealing ring and the strength of the shell, which is not the heavier the better. It is believed that the heavier the rotary filter, the thicker the shell material it uses, the better the sealing performance.

In fact, this statement is not comprehensive. Each filter has an applicable working pressure range, as long as the pressure capacity of the filter has enough for its working pressure. The selection of too thick materials will increase unnecessary costs, while bringing excess load to the vehicle, increasing energy consumption, from the perspective of environmental protection and cost-effective is unreasonable.

In addition, the performance of the sealing ring and the strength of the housing largely depend on the material selected and the structural design of the parts. By selecting the best materials and optimizing the product design structure, the product is lightweight, environmentally friendly and more cost-effective while ensuring the reliability of product quality.