The mixed flow fan is a new type of ventilation fan that falls between axial flow fans and centrifugal fans. It is a high-tech ventilation product designed with advanced CAD software and multi-objective optimization. Designed using the mixed flow annular acceleration method, the mixed flow fan has higher wind pressure than the same model axial flow fan and a larger air volume than the same model centrifugal fan. It boasts high efficiency, a wide operating range, low noise, compact structure, easy installation, and competitive pricing.