The role of the air filter is: 1. Make the air conditioner grid tightly to ensure that the air will not enter the carriage without filtering the air; Smoke, ozone, odor, carbon oxide, SO2, CO2, can be strong and long -lasting adsorption moisture; 4. Make the car glass of water steam, the driver's eyes are clear, driving safety; Clean without breeding bacteria. The motorcycle air filter is a device that purifies the air. It consists of a shell and a filter element, and the filter element is arranged in the shell. There are various foreign objects in the atmosphere, such as dust, sand particles, etc., which will accelerate the wear of the engine, thereby reducing the service life of the engine. Sometimes the tires will bring off the stone. Once entering the engine, the engine can be severely damaged. The air filter can prevent this. In order to increase the amount of air intake, the air filter shell is generally large. Many cars are designed to a part of the frame into the air filter shell to increase its volume. When the engine is running, the air intake is intermittent, causing the air vibration in the air filter shell. If the air pressure fluctuates too much, it will sometimes affect the air intake of the engine. In addition, air intake noise will be increased at this time. In order to suppress the air intake noise, the volume of the air filter shell can be increased, and some are also arranged in it to reduce resonance. The filter element of the air filter is divided into two types: dry filter element and wet filter element. The dry filter element material is filter paper or non -woven fabric. In order to increase the area through the area, most of the filter elements have processed many small wrinkles. When the filter element is mildly dirty, the compressed air can be blown. When the filter element is severely damaged, the new core should be replaced in time. The wet filter element is made of seal -shaped polyuretin material. When used, some oil should be added and kneaded with your hands to absorb foreign objects in the air. If the filter element is dirty, you can use cleaning oil for cleaning, and a new filter element should be replaced with excessive pollution loss. If the filter element is severely blocked, the intake resistance will increase and the engine power will decrease. At the same time, due to the increased air resistance, the amount of gasoline inhaled will also be increased, resulting in too much hybrid ratio, which makes the engine operating state bad, increasing fuel consumption, and easy to produce carbon deposits. You should usually develop the habit of regularly checking the air filter element.