A roof cyclone ventilator is a wind-driven ventilation system designed to expel heat, smoke, moisture, dust, and stale air from inside a building without the need for electricity. It consists of a dome-shaped, rotating turbine with precisely engineered fins that catch even the slightest breeze. As the ventilator spins, it creates a natural suction effect — similar to a cyclone — that continuously pulls air upward and out through the roof.