In _________ system, the use is made of doors, windows, ventilators and skylights to make the room properly ventilated.

In natural ventilation systems, the use is made of doors, windows, ventilators, and skylights to ensure that the room is adequately ventilated. Natural ventilation relies on the movement of air through these openings, leveraging wind pressure and temperature differences to facilitate air exchange. This type of ventilation is energy-efficient and enhances indoor air quality without the use of mechanical systems.

Additionally, proper placement and sizing of these openings can significantly enhance airflow and comfort within a space. Utilization of natural ventilation is particularly effective in climates that allow for indoor-outdoor thermal exchanges. Overall, it provides a sustainable solution for maintaining a healthy indoor environment.