Confined Spaces
Exposure to chemicals or lack of oxygen in confined spaces can be deadly. Airborne chemicals can quickly reach dangerous levels in confined spaces that are not ventilated. Carbon monoxide, hydrogen sulfide, welding fumes, and solvent vapors are typical confined space chemical hazards. In some confined spaces, oxygen deficiency will cause the person entering to instantly collapse.
Confined spaces include manholes, sewers, vaults, tanks, and boilers in new construction or in repair and maintenance work.
For more information on confined spaces, please see OSHAcademy course 713 Confined Space Program.
Knowledge Check Choose the best answer for the question.
1-9. Which of the following exposures can cause the person entering a confined space to instantly collapse?
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