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How to judge the quality of air filter

There is not only oxygen in the air that people need, but also impurities – some unnecessary impurities, which filter the impurities in the air and provide fresh air for the engine. Air is vital to the engine, and every operation of the engine requires air to support combustion. The environment where the engine works is also on the road we drive. There is a lot of dust, PM, etc., so a layer of “mask” is needed to filter, and the air filter element is similar to the “mask” of the engine.
How to judge the quality of the car air filter element 1-Introduction-Look at the material of the filter element The main filter material of the air filter element is filter paper. At present, the filter paper of the filter element is mainly made of domestic paper and imported paper. Both domestic and imported paper have good filtration performance, while counterfeit The inferior filter paper used in the filter element cannot prevent dust from entering the engine, thereby affecting the normal operation of the engine. Generally, the color of the filter paper of the genuine filter element is uniform and the paper surface is relatively flat; while the color of the filter paper of the inferior filter element is not uniform, the paper surface is hairy, and the texture is very poor. Second, look at the colloid of the filter element. At present, the structure of the filter element is generally composed of filter paper and rubber bonding, and the colloid of the true and false filter element is also different. The rubber texture of the genuine filter element is better and elastic, while the rubber of the fake filter element is soft and the texture is poor. The easier way to identify is to fold the air filter in half. After loosening, the genuine filter will quickly return to its original state, while the counterfeit filter does not adhere well to the filter paper due to the rubber texture, and the middle of the fold is obvious. In addition: you can pass some signs, such as imported strips, and of course some domestic ones can be imitated, but careful observation is different. How to judge the quality of the car air filter? How long does it take to replace it? However, if you often drive in places with poor road conditions, it is best to shorten the replacement cycle, generally 3000 kilometers need to be cleaned. Usually, during major maintenance, the air filter, engine oil, machine filter, and fuel filter (except the fuel filter built into the fuel tank) will be replaced at the same time (the maintenance cycle specified by different car manufacturers is not exactly the same, the specific replacement cycle is based on the requirements of the car manufacturer. allow). Why should the air filter be replaced? The main components of the air filter are the filter element and the casing. The filter element is the main filtering part, which is responsible for the filtration of the gas, and the casing is the external structure that provides the necessary protection for the filter element. The air filter of a car is equivalent to a person’s nose. It is the first “checkpoint” that air enters the engine. Its function is to filter out the sand and some suspended particles in the air, so as to make the air entering the engine. are relatively pure, so as to maintain the normal operation of the engine.