Profile: Aerovent/covington manufactures propellers and air make-up systems. We develop heavy-duty industrial axial flow fans. Our product line includes panel and ring fans, roof ventilators, tubeaxial fans, inline centrifugal fans, fiberglass fans, mancoolers, door air heaters & centrifugal blowers. Our CBA-SW - airfoil centrifugal fan is designed to handle volumes of relatively clean air at low to moderate pressures in applications, such as HVAC, combustion air supply, filtration & drying systems, fume hood & spray booth, exhaust systems and air pollution control. Our centrifugal roof ventilator is used for roof mounting exhaust of contaminated air. We are an ISO 9001 certified company.