Vertical Roof Wind Ventilators require no electricity. Airier Natura Pvt. Ltd. Is an ISO 9001-2000 awarded company that manufactures Vertical Roof Wind Ventilators. Airier Natura Pvt. Ltd. Also manufactures a wide range of ventilators. Vertical Roof Wind Ventilators remove smoke, heat, gas, and humidity from covered area. It is suitable for all roofs. It comes with easy Adjustable feature for any angle and direction. The Ventilator increases the life of roof sheet, structure, and machinery efficiency.