Description: Exhaust fan has rugged all-metal structure, features corrosion-resistant aluminum fan blades, shutters and steel wire guards for adding attic fan’s longevity and preventing corrosive rust from forming. This wall mounted exhaust fan includes automatic gravity shutters that open and close with the operation of the fan. Protecting your shutter fan from rain and others when not in operation. Application For： This shutter exhaust fan is designed to help remove excess heat and moisture, keeps your living space cooler and more comfortable year-round. Widely use in home attic, workshops, welding rooms, factories, warehouses, barns, and greenhouses. .
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