What is the method by which air moves naturally through a workplace?

Natural ventilation is the process by which air moves through a workplace without the use of mechanical systems. This method relies on natural forces such as wind and temperature differences to create air movement. For instance, windows, vents, and openings allow fresh air to enter while stale air is expelled, facilitating a continuous exchange that helps maintain air quality. Natural ventilation is particularly effective in environments where outdoor conditions support adequate airflow, thus aiding in the dilution of pollutants and managing thermal comfort within a workspace.

In contrast, mechanical ventilation utilizes fans and air conditioning systems to circulate air, while local exhaust systems are designed to capture and remove contaminants from specific sources, often focusing on localized areas. Chemical ventilation is not a standard term used in this context, and it seems to misrepresent methods involving chemical processes rather than air movement. Therefore, understanding natural ventilation is crucial for promoting a safe and healthy work environment.