Hollow nitrogen-filled glass is 8mm thick
Soundproof glass is hollow glass, in the middle of the double glass sandwiched with a dry air layer, or vacuum to add inert gas (nitrogen), the thickness of about 8mm. This kind of glass not only has the performance of sound insulation, but also has the characteristics of heat insulation and energy saving, blocking wind and resisting external impulse force. Because the moisture permeability of insulating glass is very low, frost will not occur when used in the environment with a large temperature difference between inside and outside. Sound insulation effect such as the use of 5-8mm thick transparent glass, the installation of soundproof Windows can reduce noise by more than 30 decibels. Double glazing has a sound insulation effect of about 40%, while triple glazing is almost 100% sound insulation. The use of plastic steel doors and Windows with good sealing performance can save energy by 30% to 50%, and can reduce the indoor noise to 1\/3 of the outdoor, maintaining at about 30 decibels.