Ventilation systems are designed to provide fresh air circulation and remove stale air and pollutants from indoor spaces. These systems enhance indoor air quality and create a healthy and comfortable environment for occupants. Ventilation systems can be natural (such as windows and vents) or mechanical (such as fans and air ducts). They are commonly used in residential, commercial, and industrial buildings to regulate temperature, humidity, and air quality. Proper ventilation is essential for reducing the risk of indoor air pollution, mold growth, and respiratory health issues. Additionally, ventilation systems play a crucial role in energy efficiency and building sustainability by maintaining optimal airflow and reducing the need for heating and cooling.