According to OSHA, what defines a confined space?

The definition of a confined space according to OSHA is a space that is large enough for a person to enter but has limited means for entry or exit. This characteristic makes such spaces potentially hazardous, especially if work is required to be done within them.

Confined spaces can present a myriad of safety risks, including poor ventilation, which can lead to the accumulation of hazardous gases, the possibility of engulfment by substances, or difficulty in restoring an individual to safety during an emergency. For workers in welding, understanding this definition is crucial because many welding operations might take place in areas that fit this criteria.

The other choices do not reflect the specific criteria that define a confined space. A space solely used for storage, for instance, may not have limited means for entry or exit and doesn't inherently denote the potential hazards present in confined spaces. Similarly, a large area designed for human occupation or a room with natural ventilation does not align with OSHA's definition since these settings typically offer safe entry and exit routes and generally better air circulation, reducing the risks associated with confined spaces.