What problem is caused by using doorways as ventilation openings?

What problem is caused by using doorways as ventilation openings?

• A. Compromises personnel entry and exit
• B. Smoke cooling
• C. Reduces airflow
• D. Prevents ventilation

Answer: (A)

Opening a doorway for ventilation creates uncontrolled air currents that can pull smoke and heat toward the path people use to enter or exit. Doorways must stay clear and usable for safe egress and rescue; using them as vents turns them into chokepoints or hazards, risking entrapment, slowed or blocked evacuation, and impaired firefighter entry. Proper ventilation uses dedicated openings designed to control smoke movement while keeping doors free for safe entry and exit, making the primary issue here the compromise of personnel entry and exit.

Opening a doorway for ventilation creates uncontrolled air currents that can pull smoke and heat toward the path people use to enter or exit. Doorways must stay clear and usable for safe egress and rescue; using them as vents turns them into chokepoints or hazards, risking entrapment, slowed or blocked evacuation, and impaired firefighter entry. Proper ventilation uses dedicated openings designed to control smoke movement while keeping doors free for safe entry and exit, making the primary issue here the compromise of personnel entry and exit.