Car air filters play a very important role. We should take good care of car air filters. Let's share the functions of car air filters and the precautions for replacement.

What is the function of an air filter? The main function of an air filter is to filter out impurities or dust in the air, allowing clean air to enter the cylinder. Fuel combustion requires a large amount of air. Take an ordinary car as an example. For every 1L of gasoline consumed, 5000-10000 liters of gasoline are required. When a large amount of empty gas enters the cylinder, if impurities or dust are not filtered out, it will accelerate the wear of the cylinder and shorten the service life of the engine. Practice has shown that without an air filter, the engine life can be shortened by 2/3. In addition, air filters can also reduce intake noise.

The air filter is located in the engine intake system and is an integral mechanism composed of one or several clean air filter components.
There are two filtering methods for air filters, namely dry and wet.
A dry air filter is a type of filter that separates impurities from the air through a dry filter element. The air filters used in light vehicles are usually single stage. Its shape is oblate, elliptical, and flat. The filtering material is filter paper or non-woven fabric. The end cover of the filter element is fixed by metal or polyurethane, and the shell material is metal or plastic. At the rated air volume flow rate, the original filtration efficiency of the filter element should not be less than 99.5%.

Wet air filters include oil immersed and oil bath types. The oil immersed filter is used to separate impurities from the air through the oil immersed filter element. The filter element material is made of metal wire fabric or foam material. In the oil bath, the inhaled dust and air are introduced into the oil pool, and most of the dust is removed. When the oil mist flows upwards through the filter element made of metal wire, it is further filtered, and the oil droplets and stopped dust return to the oil pool together. Oil bath air filters are now widely used in agricultural institutions and ship power.

The replacement of the air filter requires regular maintenance, and some maintenance procedures are relatively simple. Car owners with strong hands-on skills can fully achieve this through DIY. Self maintenance can certainly save some money, but it's not the most important thing. The key is that self-care can increase your understanding of cars, help you better understand your love for cars, and enhance the relationship between people and cars, increasing the fun of life. The premise of DIY is that it must be correctly standardized. The entire replacement process is very simple. Although it is very simple and almost everyone has the ability to DIY on their own, this process cannot be taken lightly. Air filters are very important for engines, as they are the only barrier to prevent particles from entering the engine combustion chamber. If this barrier fails, the damage to the combustion chamber will be devastating. Therefore, care must be taken during the installation process. For example, do not forget to install the sealing ring. When installing the sealing ring, be careful not to leave any gaps and ensure that it is installed in place. From installing the filter element to installing the hood, be careful not to leave any gaps, otherwise it may damage the engine.

The above are all based on the premise that there is no problem with the spatial filter itself. If there is a problem with the air filter itself, it is useless to be careful during installation. Therefore, be careful when selecting an empty filter. For such an important part, the original part must be selected. Not to mention fake parts, not only are the seals unattainable, but there are also issues with the material itself, making it impossible to achieve the desired filtering effect. Therefore, be careful when choosing an air filter.