The aim of this research is to figure out the measuring characteristics about the Large Chamber used for measuring emission rate of the volatile organic compounds (VOCs) from building materials and so on. In this paper, the influence of supply opening size, ventilation air volume and mixing fan on measuring VOCs emission rate from the chest of drawers and the TV in large chamber is analyzed using CFD. We analyze flow field, age of air and diffusion field. Also, we computed a material transfer rate. Finally, we found more suitable measurement condition for measuring VOCs emission rate in large chamber.
