The LMC BC/BAF series of fans are designed to provide very effieient, non-overloading operation over a wide airflow range. The BC is backwardly inclined flat blade design. Applications include dust collectors, dryers, aeration of products or applications where the airstream contains minor contamination. The BAF is premium effieient airfoil fan design. BAF fans are excellent for clean air applications such as dehydrating and ventilation.