The function of the air filter element is to filter the particulate impurities in the air, to ensure that sufficient clean air enters the cylinder, to prevent the dust suspended in the air from being sucked into the engine, and to accelerate the wear of the piston group and the cylinder.

Air-conditioning filters filter the impurities, tiny particles, pollen, bacteria, industrial waste gas and dust contained in the air entering the cabin from the outside to improve the cleanliness of the air and prevent these substances from entering the air-conditioning system and destroying the air-conditioning system.

The two are similar in that they both remove dust from the air. The difference between an air conditioner filter and an air filter is:
1. The combustion of the air filter element engine requires oxygen, and oxygen takes the environment;
2. However, considering the harsh environment, that is, there is dust in the air, install a filtering device in front of the air inlet, the name is called an air filter;
3. The air-conditioning filter element is divided into two types of air-conditioning air intake in the car, inner circulation and outer circulation, but no matter what kind of circulation you are, you don't want dust in the air blown out of the air conditioner. The filter element filters the air before the air conditioner.