Before a Rescue Attempt
Employers and workers should also:
- Ensure that adequate atmospheric conditions are maintained in the spaces at all times through proper forced-air ventilation.
Proper equipment is essential for rescue.
- Evaluate if entry is necessary and/or evaluate if the work can be completed outside the confined space when safe atmospheric conditions cannot be maintained. If entry is necessary, the appropriate respirator should be evaluated and worn by workers with thorough training in respirator use and limitations.
- Ensure that an attendant is present immediately outside the space if the person in the space needs assistance and ensure that an emergency retrieval or rescue method is available. Make sure a safe method of communication is available between the person entering the space and the attendant.
- Exit the space immediately if an unsafe condition develops.
- Ensure that structures are sound (safe) from collapse prior to entering confined spaces.
- Use proper personal protective equipment, which will be determined by the hazards encountered in the confined space.
- Post warning signs to warn other response personnel, clean-up workers, and the public once the confined spaces are identified. When possible, physically block entry.
- Never enter a confined space to attempt an emergency rescue unless you have been trained in safe confined space entry and rescue procedures and have the proper tools and personal protective equipment.
Knowledge Check Choose the best answer for the question.
3-2. How do you ensure adequate atmospheric conditions are maintained within a confined space?
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