We are offering Turbo Ventilators which are self-contained devices mounted on rooftops to remove inside air. They do not need additional energy because they are powered by atmospheric wind, which also increases the natural flow of fresh air inside while exhausting indoor air through them. These devices, sometimes also known as eco ventilators, are used to help release heated air from indoor spaces into the atmosphere. Our Turbo ventilators are self-contained devices used mainly in huge factories and industrial places.