Around 7 million of people die of heart desease each year in the world, 3% of which are caused by traffic noise, says a report by WHO, 21 million cariac patients die of noise pollution, 5% always have nightmare and at least 15% suffer from tinnitus because of traffice noise in each year.
The sound proof performance depends on the glass configuration, frame profile and rubbers system.
According to "Acoustic Environmental Quality Standars GB3096-2008" there are five kinds of noise environment functional areas on the basis of regional function characteristics and environmental quality requirements:
Recommended Series: Moser windows and doors.
Recommended Configuration: The sound proof performance depends on different glass performance.
Best Configuration: Triple hollow glased.