Exhaust systems are an example of which control type?

• A. Engineering Controls
• B. Personal Protective Equipment
• C. Administrative Controls
• D. Hazard Communication

Answer: (A)

Exhaust systems are an engineering control because they physically alter the workplace to reduce exposure by removing contaminants at the source. By capturing fumes or dust right where they’re generated and venting them away, they lower the concentration of hazardous substances in the air that workers breathe. This approach differs from personal protective equipment, which relies on workers wearing respirators or other gear to protect themselves. It also differs from administrative controls, which change how people work (like scheduling, rotating tasks, or training) to reduce exposure, and from hazard communication, which focuses on informing workers about hazards through labeling, SDSs, and training. For maximum effectiveness, exhaust systems should be properly designed, installed, maintained, and tested, with appropriate capture at the source and regular upkeep of filters and ducts.