ENERGY GUIDE Estimated Airflow Yearly Energy Cost 1954 s 1 1 Curie Feet Per Minute v ' The higher the airflow the $ prioress air the fan will trove 3 34 b Airflow Efficiency: 51 Cost Range of Similar Models (197 84") Cubic Feet Per Minute Per Watt ยข Based on 12.cents per KWh and 64 hoers use per day .