Inside Details for Air Cleaning Equipment (IMAGE) Korea Institute of Science and Technology Caption Circulation fan is installed on top of the air cleaning equipment for air circulation inside the equipment. Underneath the fan is a UV lamp that supplies ozone and the nanometer catalyst filter to process pollutants. The circulation fan operates with the capacity of 4 CMM(m3/min) based on the room size of 16.52 square meters. Credit ©KIST Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.