opening vent (AOV) Ventilators
The AOV has been specifically engineered to provide efficient discharge of smoke and fumes and can be used for external roof areas. The opening angle of 120 degrees ensures that wind effects are minimised. The construction is practically airtight, completely weather proof and well insulated. It incorporates an electronic control system. The AOV is both attractive and robust.

Automatic Opening Ventilator
Ventilator for external roof areas