The traditional electric blanket generates heat through resistance wires and conducts the heat to the human body through contact. Similar to microwave heating, it will lead to dehydration and dry mouth.

The Jin Ruisiqi far-infrared crystal solar blanket emits far-infrared heat energy with a wavelength of 5- 14 micron. The human body will absorb far-infrared heat energy, which will cause thermal effect on the inner layer of human skin, and also heat the deep tissue of skin itself through molecular vibration. So there will be no problem of dry mouth.