When considering natural ventilation, which factor must be taken into account along with proximity to contaminants?

When assessing natural ventilation, the size of openings plays a crucial role because it dictates how effectively air can flow in and out of a space. Larger openings facilitate greater airflow, which can enhance the dilution of contaminants and promote better air quality. In scenarios where contaminants are present, the size of the openings determines how quickly and efficiently these pollutants can be expelled from the area while allowing fresh air to enter.

For effective natural ventilation, the proportion of opening sizes in relation to the space being ventilated must be considered. Smaller openings may restrict airflow, thereby limiting the ventilation potential and potentially failing to mitigate the effects of contaminants effectively. Ensuring adequate size of the openings is essential to harnessing the benefits of natural ventilation, especially when dealing with hazardous conditions.