The noise on the road is so loud that I can't sleep quietly. I have a problem with my sleep, a woman complained. Bad sleep will affect the normal life, inattention, memory decline and other symptoms. Living in a noisy environment for a long time can lead to a series of diseases, such as upset mood, emotional instability, reduced tolerance and so on.

Loud noise, the sound of car horns, the sound of construction, and the sound of planes taking off are all called noises, but the sizes are different. The intensity of sound is expressed in decibels (dB).

 Sound is a wave phenomenon, Therefore, the transmission of sound needs medium, which cannot be transmitted in vacuum environment. The vacuum layer of vacuum insulating glass effectively insulates the transmission of sound, and the maximum weighted sound insulation is 42dB.