VENTRA is a multi louvred ventilator that provides an economic, non-powered method of ventilation, allowing the removal of large quantities of warm air and / or smoke from a building within a short period of time. The Ventra is suitable for air feed (facade), air extraction (facade an roof) and natural lighting. The vents are manufactured according to ISO 9001 quality control standards.The vents are formed from high quality corrosion resistant aluminium to ensure low maintenance requirements and watertightness. Various methods of operation using pneumatic or electric actuators are available. The ventilator design produces a versatile economic unit suitable for a wide range of applications. Available on large dimensions, up to 2400 x 3826 mm (width x length).