What is the difference between the natural wind and the sleeping wind?
Both natural and sleeping winds are simulated by programmed interruption of the fan's opening and stopping. The difference is that the opening and stopping times are slightly different. Of course, should not be aware of the use.
As the time and depth of fall asleep increases, the intensity of the wind needed by the person decreases. The natural wind is random switching at each stall, without regularity.
The fan blows for half an hour before the natural wind, and then for half an hour, medium natural wind, and finally blow down the natural wind to the set time
The wind began to sleep by the strong wind, gradually reduce wind strength, meet people's physiological needs
