A Range Hood Employing a Multi-stage Axial Fan

摘要

PURPOSE: A range hood employing multi-stage axial flow air blower is provided to improve applicability of the range hood and to minimize working noise by installing the multi-stage axial flow fan outside a collecting hood. CONSTITUTION: A range hood includes a circular duct(40) installed on a linear duct(12) between an outlet of a collecting hood(11) and a damper(20) or between the damper and an exhaust line and having sound absorbing material(45) around a part thereof on which fine holes(40a) are formed; and a multi-stage axial flow fan(50) installed in the circular duct and comprising moving blades and fixed blades placed integrally on a same axis.