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Customizing Confined Space Containers Constrained spaces are a utility tunnel, a sewer tank, or a large underground excavated area. They are often restricted in access, and could be hazardous to get into. Confined space equipment is designed to reduce the impact of these types of risks. It includes monitoring of the atmosphere as well as personal protective equipment emergency response procedures, and training. Safety Enclosed space equipment works to reduce, mitigate, or protect and prevent a wide range of hazards that workers encounter when workin