What spaces are airflow systems monitoring?

• A. Outdoor loading docks
• B. Rooms with kitchens
• C. Compartments that contain vital electronic equipment and compartments that may contain heavier-than-air toxic gases
• D. Storage closets

Answer: (C)

Airflow monitoring focuses on spaces where hazardous atmospheres could form or where equipment needs a controlled environment. The spaces that require this monitoring are compartments that contain vital electronic equipment and compartments that may contain heavier-than-air toxic gases. Heavier-than-air gases—like certain H2S or other toxic vapors—tend to pool near the floor, so sensing and ventilating these lower-lying, enclosed spaces helps detect dangerous concentrations early and keeps critical gear cooler and safer. Outdoor loading docks are exposed to ambient air, so they don’t pose the same controlled-atmosphere risk, and storage closets are typically small and not primary risk areas unless they house hazardous materials. Kitchens are vented for heat and cooking fumes rather than for preventing accumulation of heavier-than-air toxic gases, so they’re not the main focus of airflow-system monitoring.