ENERGY GUIDE v underestimate ; Airflow ear ner 0s AP 3,785 s 1 4 Cubic Feet Per Minute hd The higher the airflow, the 534 more air the fan will move Iowa Efficiency: 74 Curie Cost Range of Similar Models (19"« 84" Feet Par Minute Per Watt i Based on 12 cents per KWh and 6.