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There are many filter materials for heavy truck air conditioner filters, such as cellulose, felt, cotton yarn, non-woven fabric, metal wire and glass filament, etc., which are basically replaced by resin-impregnated paper filter elements. With the rapid development of the world automobile industry , The use of filter paper as a filter material has been widely adopted by the world's automotive air filter industry.

Compared with the oil bath air filter, the paper core air filter has many advantages:

First, the filtration efficiency is as high as 99.5% (the oil bath air filter is 98%), and the dust transmission rate is only 0.1%-0.3%;

Second, it has a compact structure and can be installed in any orientation without being restricted by the layout of vehicle parts;

The third is that it does not consume oil during maintenance, and can also save a lot of cotton yarn, felt and metal materials;

Fourth, the quality is small and the cost is low. Therefore, the driver can use it with confidence.