Polyester screen and nylon screen can be used to screen horizontal airflow screen, but the static internal electricity capacity of nylon screen is larger than that of polyester screen, especially in the use of 200 mesh fine screen, if the material itself will generate static electricity, it is better to choose polyester screen. On the other hand, in the process of use, polyester screen in the long-term use, the mesh is not easy to deform, long-term screening, screening is more accurate than nylon screen. Thirdly, the toughness of polyester screen is lower than that of nylon screen, so nylon screen is better than polyester screen in service life.