WDD - roof fans

Roof ventilator WDD belongs to the group of industrial ventilators and its construction classifies it to centrifugal ventilators with vertical air exhaust. WDD ventilators may be mounted on roofs, where due to small room, air supply is near the ventilator. Vertical air exhaust minimizes risk of intaking the used air back to the rooms. The ventilator is made of steel galvanized sheet, whilst its component securing the electric motor against rain and snow is made of aluminium sheets.