This seminar will introduce the developmental work on a standard test method for characterizing fan-filter units commonly used for contamination control across various industries. The major parameters used for evaluating operational energy efficiency include actual electric power demand, pressure differential across the unit (often referred to as available external pressure), and airflow rates provided by the unit. An experimental test rig and key performance metrics were developed to quantify energy efficiency indices corresponding to particular operational conditions commonly exhibited in the control of real facilities. The presentation will include the outcomes from laboratory testing, regression modeling, and a ranking method used to categorize the energy performance of fan-filter units. The speaker will also discuss the importance of research work in guiding industrial standards development and suggesting potential applications for energy incentive programs to promote the implementation and design of more energy-efficient products in the market.