Ventilation system plays a crucial role in maintaining a healthy and comfortable indoor environment in any building. By continuously exchanging outdoor air with indoor air, it helps to remove pollutants, prevent mold and mildew growth, and regulate temperature and humidity levels. Proper ventilation is not only essential for improving indoor air quality but also for enhancing the overall well-being of occupants by reducing the risk of respiratory issues and allergies. There are various types of ventilation systems available, such as natural ventilation, mechanical ventilation, and hybrid ventilation, each offering distinct advantages to meet the specific needs of different buildings. Regular maintenance and inspection of ventilation systems are necessary to ensure they are operating efficiently and effectively. Investing in a reliable ventilation system can significantly contribute to creating a healthier and more comfortable indoor environment for building occupants.