Respirators When Performing Hot Work in Confined Spaces
Hot work is any work that involves burning, welding, using fire- or spark-producing tools, or that produces a source of ignition.
Hot work is any work that involves burning, welding, using fire- or spark-producing tools, or that produces a
source of ignition.
Welding and cutting operations are common in the construction of confined spaces.
Workers to perform hot work operations in confined spaces should follow these best practices:
- Hot work performed on surfaces containing lead, cadmium, or mercury require an air-line respirator to be used if local exhaust ventilation is not provided or effective.
- Hot work performed on surfaces covered with toxic preservatives require an air-line respirator to be used if toxic coatings have not been stripped back at least four inches.
- Other workers exposed to the same atmosphere as the worker must be protected in the same manner.
- Hot work performed on beryllium requires local exhaust ventilation and air-line respirators.
- If the ventilation equipment blocks access to the space, air-line respirators and a standby employee must be available.
Knowledge Check Choose the best answer for the question.
4-7. Samuel is welding on a surface containing lead. The confined space he is working in doesn't allow for adequate ventilation. What respiratory protection should Samuel use?
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