Description should include determining
- the ventilation system and heating/cooling system in the work area
- the need for a personal breathing apparatus when welding in confined spaces or using fume extractors.
Process/Skill Questions:
- What is your welding shop's ventilation system? What are its components?
- Why should there always be a clean supply of fresh air available?
- How do you decide when you should use a personal breathing apparatus when completing welding tasks?