ENERGY GUIDE Estimated Airflow Yearly Energy Cost 3,507 $ 1 1 Cubic Fest Per Minute Vv . + The higher the airflow, the CEH | | $34 more alr the fan wil move ’ » Airflow Efficiency: 87 Cubic Cost Range of Similar Models (19" — 847) Feet Per Minute Per Wat + Based on 12 cents per kWh and 6.