The air filter prevents any insects, dust, particles, sand or debris reaching the engine and ensures a good mixture of air and fuel to support performance.

Air filter is a device composed of fibrous, or porous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air.

Filters containing an adsorbent or catalyst such as charcoal may also remove odors and gaseous pollutants such as volatile organic compounds or ozone.