ABSTRACT
Humidity has a greater effect on human summer, humidity is too big, can inhibit the body heat, make the person feels very hot, fidgety. In winter, when humidity is big, it can accelerate heat conduction, make the person feels cold, depression. The indoor humidity is too low, because of the upper respiratory tract mucous membrane of large water loss, people will feel dry mouth, tongue, and throat swelling and pain, hoarseness and nasal bleeding, and susceptible to colds.
