Why is PPE used as the last line of defense in the hazard control hierarchy?

Why is PPE used as the last line of defense in the hazard control hierarchy?

• A. Because PPE does not eliminate hazards and relies on user compliance, it is less reliable than elimination, substitution, or engineering controls.
• B. Because PPE is always the best choice
• C. Because PPE is cheap
• D. Because PPE can be used to improve aesthetics

Answer: (C)

The idea behind the hazard control hierarchy is to prioritize actions that remove or reduce the hazard at the source before relying on personal protection. Personal protective equipment sits at the end because it doesn’t remove the danger from the workplace. It acts as a barrier that protects the individual, but its effectiveness depends on correct selection, proper use, proper fit, consistent maintenance, and worker compliance. If any of those factors fail—improperly worn gloves, a torn respirator, or damaged eye protection—the exposure can still occur. In contrast, elimination and engineering controls, or even administrative controls, reduce or remove the hazard for everyone in the work area, not just the person handling the task. PPE is most appropriate when hazards cannot be eliminated or controlled by other means, or during temporary situations where risk is reduced but not eliminated.

The idea behind the hazard control hierarchy is to prioritize actions that remove or reduce the hazard at the source before relying on personal protection. Personal protective equipment sits at the end because it doesn’t remove the danger from the workplace. It acts as a barrier that protects the individual, but its effectiveness depends on correct selection, proper use, proper fit, consistent maintenance, and worker compliance. If any of those factors fail—improperly worn gloves, a torn respirator, or damaged eye protection—the exposure can still occur.

In contrast, elimination and engineering controls, or even administrative controls, reduce or remove the hazard for everyone in the work area, not just the person handling the task. PPE is most appropriate when hazards cannot be eliminated or controlled by other means, or during temporary situations where risk is reduced but not eliminated.