Estimated Yearly Energy Cost $ 12 $3 1443 8.94 161 3,143 4740 72.41 65 Cubic Feet Per Minute $34 Cost Range of Similar Models (19"—84") ·Based on 12 cents per kWh and 6.4 hours use per day ·Your cost depends on rates and use ·Energy Use: 43 Watts All estimates based on typical use, excluding lights Airflow ·The higher the airflow, the more air the fan will move ·Airflow Efficiency: 73 Cubic Feet Per Minute Per Watt ftc.