It is well known that volatile organic compound (VOC) emissions from construction materials and officeappliance occasionally have influence on human health. It is a social request that manufacturersreduce VOC emissions from their products. To measure emissions from materials, a high-precisionchamber is required that can control environmental conditions such as ventilation, temperature,humidity, air flow, and VOC concentrations. We developed a high-performance VOC observationchamber for measurement of emissions from construction materials, furniture, office equipment, andhousehold appliances. Thus, the chamber exhibited extremely low VOC concentration with consideringto structural materials and air purification system. A domestic testing facility that adopted our chamberis the first manufacturer to receive certification from Federal Institute for Materials Research andTesting (BAM) in Germany, as a measurement institution for the determination of emissions (such asTVOC, ozone and dust) from hardcopy devices.