Powerful industrial air curtain for horizontal installation on large industrial doors.Air curtains work with centrifugal fan equipped with low noise copper motor. Centrifugal fan could be more powerful, uniform forced airflow, High efficiency motor assemble with low consumption fans. Powerful air speed up to 28m/s, recommend installation height to 8 meter. Multiple sizes for all applications.They ship fully assembled, making them easy to install, operate, and maintain.