The use of paper core air filters in modern automobile engines is becoming more and more common, but there are still some drivers who have prejudice against paper core air filters, thinking 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%; second, it has a compact structure and can be installed in any direction, and is not restricted by the layout of vehicle parts; third, it does not consume oil during maintenance, and can also save a lot of cotton yarn, felt and metal materials; fourth, 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 properties and keep unfiltered air from bypassing into the engine cylinders.