The use of paper-core air filters in modern automobile engines is becoming more and more common, but some drivers still have a prejudice against paper-core air filters and believe that the filtering effect of paper-core air filters is not good. In fact, the paper core air filter has many advantages compared with the oil bath air filter: 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%; The second is the compact structure, which can be installed in any position, and is not restricted by the layout of the vehicle parts; the third is that it does not consume oil during maintenance, and it can also save a lot of cotton yarn, felt and metal materials; the fourth is Low quality and low cost. Therefore, the driver can use it with confidence.

The key to using a good paper core air filter is to maintain its sealing performance and prevent unfiltered air from bypassing the engine cylinder.

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