According to the principle classification, fans can be divided into two categories: AC axial fans and centrifugal fans. These two types of fans have different structures, different working principles, and different operating characteristics.

This AC axial fan has many different characteristics in terms of structural configuration, design method, and internal flow phenomenon, and it is not easy to grasp the fan's low-noise design and internal flow mechanism.

Este ventilador axial de CA tiene muchas características diferentes en términos de configuración estructural, método de diseño y fenómeno de flujo interno, y no es fácil comprender el diseño de bajo ruido y el mecanismo de flujo interno del ventilador.

This AC axial fan has many different characteristics in terms of structural configuration, design method, and internal flow phenomenon, and it is not easy to grasp the fan's low-noise design and internal flow mechanism.