Wind Driven Weather Proof Ventilator is available in an aluminium and stainless steel construction that ensures optimum performance for longer period of time. The Weather Proof Ventilator is designed to effectively remove heat, fumes and dust, odours and pollutants along with the toxic end gases. The Wind Driven Ventilator is a wind driven unit that does not require electricity. Wind Driven Weather Proof Ventilator is offered in different sizes ranging from 12 to 36 inches.