Estimated Yearly Energy Cost 3 # 34) Cost Range of Similar Models Based on 11 cents per kWh and 3 hours use per day * Your cost depends on rates and use + Energy Use: 29 Watts ENERGY GUIDE Airflow 2097 Cubic Feet Per Minute + The higher the airflow, the mare alr the fan will move = Airflow Efficiency: 73 Cubic Fest Per Minute Per Watt All estimates based on typical use, excluding lights fie.