Stainless steel is a commonly used material for turbo air ventilators because it is strong, durable, and resistant to corrosion. It is also able to withstand harsh weather conditions, making it ideal for outdoor applications such as roof ventilation. Turbo air ventilators are considered to be an eco-friendly and cost-effective way of ventilating a building because they do not require electricity to operate. They are also low-maintenance and have a long lifespan, making them a popular choice for industrial and commercial buildings.