Insulated glaszing glass is made of two or more pieces of glass glazing sheets which might be low e or reflective glass or normal float colored glass and use sealant gumming and aluminum spacers which was filled with desiccant together. Insulated glass/ Hollow glass/IGU/Double glazing glass with the perimeter of the spacer that gets in contact with the glass is properly sealed with primary and secondary sealants to ensure it with air/argon tight. Insulated glass not only could save energy power, also it can get sound insulation. This kind of IGU can enhance a window's thermal insulation up to 3 times resulting in reduction of energy consumption of up to 75% compared to a single glazed unit.