The 11-62A low-noise centrifugal fan is designed and manufactured in response to the evolving purification industry and the demands for environmental protection and noise reduction. The fan utilizes a multi-purpose optimized design for noise efficiency, meeting various aerodynamic parameter requirements. The entire frame has a performance match with a well-aerodynamic impeller, and the belt pulleys have undergone strict static and dynamic balance corrections, ensuring smooth operation, low noise, minimal vibration, long lifespan, and extended service life. Similarly, it is widely applicable for kitchen exhaust, range hoods, or ventilation equipment, air exchange in public places such as canteens, hotels, restaurants, dining establishments, etc. It is also suitable for production equipment such as grain chemical products and plastic machinery.