Which combination best describes a BE containment strategy discussed?

• A. Ventilation only.
• B. Administrative controls only.
• C. Ventilation with PPE-only approach.
• D. Ventilation with administrative controls.

Answer: (D)

The main concept here is using both an engineering control and organizational practices to reduce exposure. Ventilation lowers the concentration of airborne contaminants by diluting and removing them from the work area, especially when designed with proper air changes and, if needed, local exhaust capture. Administrative controls complement this by shaping how work is done—restricting access, enforcing safe procedures, training workers, and scheduling tasks to minimize time spent in potentially contaminated areas. Relying on PPE alone is less reliable because it depends on correct usage and does not reduce the ambient contaminant level. Therefore, combining ventilation with administrative controls provides a more robust containment strategy than either approach alone.