1. Construction and blade design: A crossflow fan usually consists of a rotating cylinder or rectangle with curved blades installed in it. The design and layout of the blades will affect the air volume and pressure generation capacity of the crossflow fan. Usually, the blades are designed aerodynamically to provide the best airflow performance.

2. Efficient energy conversion: Compared with traditional brushed fans, crossflow fans are usually driven by brushless DC motors or AC motors. Brushless motors eliminate friction and energy loss, providing higher efficiency and energy conversion.

3. Heat dissipation performance: Crossflow fans are widely used in heat dissipation of electronic equipment. Due to their uniform airflow distribution and small size, crossflow fans can be installed in compact spaces to effectively dissipate heat and reduce temperatures.

4. Air conditioning and ventilation systems: Crossflow fans are also commonly used in air conditioning and ventilation systems. Due to their uniform airflow distribution and multi-directional airflow output characteristics, crossflow fans can achieve good air circulation and ventilation effects and improve indoor airflow quality.

5. Widely used in home appliances and office equipment. For example, microwave ovens, ovens, air purifiers, printers and other equipment often use crossflow fans to provide heat dissipation and ventilation functions.

6. Curtain wall ventilation and drying equipment: The multiple airflow outputs of crossflow fans make them suitable for curtain wall ventilation and drying equipment. By installing crossflow fans in curtain wall systems, it is possible to effectively circulate air and improve air quality.

It should be noted that crossflow fans are relatively weak in pressure generation capacity and air volume. In applications where high pressure and large air volume are required, centrifugal fans may be more suitable. Therefore, when choosing the type of fan, it is necessary to make comprehensive considerations based on the specific application needs and performance requirements.