Certified Safety Professional Practice Exam

The key limitation of using canopy hoods is indeed associated with the potential for worker displacement. Canopy hoods are designed to capture fumes, vapors, and heat rising from a source, often positioned above processes such as cooking or industrial operations. However, their effectiveness largely depends on the airflow patterns in the work environment. If workers are positioned too close to or too far from the hood, or if there are obstructions in the way of the airflow, it can lead to inadequate capture of airborne contaminants. This situation is referred to as worker displacement, where the intended protective measures may not adequately shield workers from exposure to hazardous substances due to their location relative to the canopy hood.

Understanding this limitation is vital for safety professionals, as it emphasizes the importance of proper placement and airflow design when implementing control measures in the workplace. Adjustments may be necessary to optimize the hood's effectiveness and ensure worker safety.