The main energy consumer of the transmission department （include radio base station） is the air-condition. In this article

we discuss how to save energy from the security of the network

resource of necessity and the harmonious surroundings around. Here

we use the special air-condition of the radio base station. During the daily maintenance

we paid great attention to the quality of the filters in the air-condition which greatly affected long-term use of the air-condition in order to save the energy and ensure the mobile network runs well.