With the continuous development of science and technology, the usage demands of the fan are higher and higher nowadays. The current development trend of fan technology will be lager fan capacity, more efficient, lower noise, higher speed and smaller size.
　　
--- Large fan capacity. The increasing scale of various industrial devices need the large types of fan capacity, in the next few years, fans in big size will be popular in the market.
　　
--- Efficient. Ternary flow impeller has been widely used in fans and blowers to enhance efficiency. Other fans for special purposes such as ramps flow fan will meet users’ individual demands.

-- High-speed and small size. Ternary flow impeller improves fan efficiency and increase the pressure. So in the same conditions, the impeller diameter can be reduced by 10% to 30%, thus reducing the size and weight of the fan. Raising fan speed is also one of the important ways to miniaturize.
　　
--- Low noise. Fan noise is the main source of noise pollution in industrial production. Fans of large-scale and high-speed make the noise problems more conspicuous. The low-frequency noise can be reduce through improving structural design of the fan, additionally, the installation of silencer can also solve the problem.
　　
                                                                                                                             Information from the internet