Same woodiness structure,same seat ,but work principle is competely different.There is a electrothermal furnace in traditional sauna room to cause high temperature vapour by water-sprinkling.The vapour precipitates perspire by transmitting amount of  the heat.While the principle of Sai Kang light wave bathing room is that make use of the radiation of far infrared.Because of we personal are the emiter of the far infrared and at the same time are receptor.The far infrared ray that are emitted by the light wave bathing room near to the frequency of our own cell so it can permeate skin and subcutaneous tissue 4cm to 5cm.Then it can cause resonance effect to make molecules movement actively and with the cells.As a result it can increase the Blood circulation speed and  accelerate metabolism.So when Sai Kang light wave works,the air is not warming but we aslo can perspire under low temperature.

Thanks to no need of high temperature cause steam,there are some advantages of Sai Kang light wave bathing room:First is more comfortable.The air could circulate without feeling oppressed.So you can listen music and read.The second is physical therapy function.Far infrared light wave bathing room can cure scapulohumeral periarthritis and cervical spondylosis so on.In addition it aslo can promote blood circulation and metabolism,get rid of toxin and improve quality of skin.The third is that Sai Kang light wave bathing room has more convenient temperature adjustment and controlling device so it can save more energy.