Airtightness at minimal air exchange rate

Well seal is perfectly achieved by structural consistency,precise  fabrication,dedicated seal extrusion,non-hazardous neutral sealant and silicon  seal strip between vertical adjacent glass panels.Integral seal of museum  display case ensures the rate of air exchange in internal display volume is not  more than 0.1 per 24 hours,consequently,the external dust can be prevented from  entering into the inside of museum display cases to create a dust free  display space.