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FAQ
When permit-required confined space isolation is infeasible, such as a sewer system, and entrants do not conduct pre-entry air monitoring, is individual air monitoring required for each entrant or can an area monitor be used?
An area monitor could be used where small groups (two or three employees) work together in close proximity as long as the monitor can measure hazards encountered by the employees. However, all entrants must remain together as a group for the entire entry.
['Confined Spaces']
['Confined Space Testing and Protective Measures', 'Confined Spaces']