Which concept involves controlling airflow to remove smoke and heat from a building?

• A. Ventilation
• B. Water Supply
• C. Automatic Sprinklers
• D. Water Removal

Answer: (A)

Ventilation is about controlling airflow to remove smoke and heat from a building. In fire safety design, moving air out of a space—or bringing fresh air in—lowers smoke density, reduces temperatures, and improves visibility, making it safer for occupants to escape and for firefighters to operate. This can be achieved naturally or with mechanical systems, and often includes dedicated smoke exhaust paths and pressure management to keep egress routes tenable. The other options relate to water-based suppression or cleaning after a fire, not to directing air flow, so they don’t fit the concept described.