Planning
Define start, occupancy, objectives, measurement intervals and stop criteria. Both exits remain fully usable and nobody is locked in. An informed outside contact and immediate return to normal rooms keep the drill safe.
Emergency preparedness · 18 min
A voluntary drill that can be stopped at any time under safe conditions reveals bottlenecks before an emergency creates pressure. Observe air, temperature, energy, water, sanitation, sleep, communications and teamwork.
Decision compass
Four questions lead from observation to a clear, safer action.
What needs to be clarified now?
Remember: Observe → assess → choose a safer option → act.

Only shared use reveals whether space, equipment and procedures work together.
Define start, occupancy, objectives, measurement intervals and stop criteria. Both exits remain fully usable and nobody is locked in. An informed outside contact and immediate return to normal rooms keep the drill safe.
Log CO₂, temperature, humidity, energy, water use, sleep quality and problems. Observe whether routes remain clear and information is understood. Symptoms, alarms or uncertain air end the drill immediately.
Debriefing separates technical defects, quantity errors and unclear procedures. Assign owners and dates to actions. Repeat only after safety-critical defects are resolved.
Decision training
Correct: B. Photographs, plans, specialist checks and a functional test show whether the proposed solution works safely at the actual site.