Which method is considered natural ventilation for a confined space?

Natural ventilation is a method that relies on the movement of air through a confined space without the use of mechanical systems. This method is typically achieved by creating openings, like doors or vents, that allow fresh air to enter and stale air to exit due to natural forces such as wind or temperature differences.

When you open doors or vents, you take advantage of these natural forces, promoting airflow that helps to dilute and remove any hazardous gases or contaminants present in the space. This contrasts with mechanical ventilation methods, which use powered equipment like exhaust fans or air conditioning systems to move air. Natural ventilation is often preferred for its simplicity and lower energy consumption, making it an effective solution for ensuring air quality in confined spaces.