There are dozens or hundreds of air filters, depending on the filter model:
1. The car air filter is a very important part of the air conditioner. In fact, the car air filter has another name, which is what we often call "air filter". For the protection of the air conditioner, changing the air filter is the most basic. However, the replacement cycle of different cars is different, and there is no special standard for the replacement of the car air filter. Whether or not to replace the car air filter depends on the amount of dust and impurities in the car air filter;
2. Even if it is the same car air filter, if a car air filter is on a vehicle that travels on the highway for a long time, it may take 30,000 kilometers to replace it once. And if a car air filter is on an off-road vehicle, it will be replaced within two months;
3. Of course, for vehicles generally used in cities, the air filter needs to be replaced only once a year or every 20,000 kilometers. In fact, the car air filter is very important to the car, so everyone needs to buy a high-quality car air filter when buying a car air filter, so that you don't have to replace the car air filter frequently in the future.

Its main function is to filter impurities in gasoline and reduce engine loss:
1. Air filter element, when gasoline is burning, clean gasoline and clean air are mixed together, and the fuel can exert its maximum effect when it burns;
2. The air quality in most places is relatively poor, and the air filter is more important. Air filter is what we often call air filter;
3. If the maintenance period is reached and the air filter has not been replaced, it will be more difficult for the engine to inhale. If the mixture of oil and gas is not in place, carbon deposits will increase, thereby increasing fuel consumption.