What is the performance of various types of electric fans? How to choose an electric fan?

 involves 6 mainstream types of electric fans, including air circulation fans, bladeless fans, cooling fans, tower fans, traditional AC floor-standing electric fans and traditional DC electric fans.

 The test referred to relevant standards and tested the above-mentioned 6 types of fans for their silent effect (lowest and highest noise), cooling effect, and wind power test (air volume, wind speed, air supply distance).

 Compare test results

 Lowest and highest levels of noise

 The lowest setting of the fan is relatively quiet, while the highest setting is the noisiest. The test results show that the air circulation fan with the lowest noise is the one with the lowest gear, thanks to the many gears of the DC motor, while the cooling fan is noisier. The highest-end fan with the smallest noise is the traditional fan. After years of improvement, most of these fans use multiple blades, which reduces the noise a lot. The highest-end fan with higher noise is still the cooling fan.

Air volume, wind speed, air supply distance

 The air volume test is the amount of air blown out by the fan. The design of traditional electric fans helps spread the wind in all directions, so the air volume is large. Bladeless fans hide the fan blades and minimize the air volume.