A rooftop ventilator fan is a dedicated ventilation unit positioned on the roof of a building, specifically engineered to exhaust stale air, odors, and contaminants, while promoting air circulation and temperature regulation within the indoor environment. These fans are crucial components of HVAC systems, commonly utilized in commercial, industrial, and residential settings to enhance indoor air quality and comfort levels. By efficiently expelling pollutants and regulating airflow, rooftop ventilator fans contribute to maintaining a healthy and pleasant indoor atmosphere while ensuring energy efficiency and cost-effectiveness in building operation.