In contrast, vacuum glass is superior to the performance of insulating glass. Vacuum glass has excellent thermal insulation properties. It is used as window glass to make the winter room warm and warm. The indoor heating is not easy to be lost, which reduces the cost of heating and air conditioning and saves energy. Air conditioning is used indoors in summer, and air-conditioning is not easy to escape. Sound insulation performance is good, preventing noise interference and creating a quiet environment. In addition, in the winter, even if the outdoor temperature is very low, it is difficult to condense on the side of the window glass interior, which ensures a clear view without cleaning the dew condensation glass frequently.