ENERGY GUIDE Estimated Airflow Yearly Energy Cost 2,956 s 1 2 Cubic Feet Per Minute v | "The higher the airflow, the g 1 more air the fan will move Airflow Efficiency: 72 Cubic Cost Range of Similar Models (19" 84") Feet Per Minute Per Walt ยข Based on 12 cents per KWh and 6 4 hours use per day .