The core structure applied to the rotor dehumidification are the kept-rotating faviform drying rotors and they are also the most critical parts the dehumidifier is operated to use to dehumidify, the materials selected for the rotors are special glass fiber with low content of titanium compounded with activated silica gel. The design of the faviform structure can not only be adhered to the ultimate extent to the moisture acceptor, extend the surface air to be contacted the moisture acceptor by the humid air, enhance the operating efficiency of the dehumidifier but they are of high intensity and are well adapted to the various complex operating environments.

Either side of the rotor are the separation panels, made of silicon rubber with high performance of sealability which partitioning the whole surface into two parts: 270 degree of the process fan segment and the other, 90 degree reactivation & restoration fan segment.

When the humid air(process air) that needs to be humidified is flowed into the process segment, the vapor in the humid air is then absorbed by the activated silica gel applied to the rotors and is processed to dry, the dried air is subsequently blast out through the fan. With the volume of the absorbed moisture increaeing, the process fan gradually comes to be saturated. In order to keep its dehumidification capacity stable, the moisture retentive chemicals in the rotors shall be needed to be reactivated and restored and meanwhile, the gradually-saturated rotors, driven by the motor, are slowly rotated into the reactivation segment to start a new cycle of the reactivation and restoration process.
　　
The reactivation air(generally taken from the outdoor or in the equipment room), lifted up to 100~140℃ after heating, are then blowed into the reactivation area in the converse direction, the absorbed moisture in the rotors in high temperature are desorbed while the reactivation air, losing a great amount of sensible heat owing to the desorption process and reduced in temperature, becomes the humid air with content of saturated moisture before being guided through fans to the outdoor to complete the transference of the moisture. The rotors, after completion of reactivation dehydration, are recovered again powerful moisture absorption capacity and meantime, driven by the motor, they again are transferred into the operating area to go on dehumidifying.

The foregoing occurrence of dehumidification and reactivation are operated simultaneously, the air is being dried, while the rotors are continually reacted, such operations are run in a continuous cycle which ensure that the dehumidifier can be kept running at a constant operating state. The rotate speed of the rotors are 8~12 rounds/hr with low with low dynamics required, while the parameter conditions regarding the outlet air are only depended on the parameters of the inlet air and the controls made to the re℃activation energy.