What is the purpose of Circle William?

Circle William is specifically designed to set ventilation during a Chemical, Biological, or Radiological (CBR) attack. In the context of such an emergency, controlling the atmosphere within a ship or facility is crucial to safeguard the crew and mitigate the effects of hazardous substances. Establishing effective ventilation can help disperse harmful agents, maintain breathable air, and facilitate safe evacuation or containment procedures.

Ventilation during a CBR incident must be precisely managed to prevent the accumulation of toxic substances, ensuring the safety of personnel and the operational integrity of the vessel. Circle William embodies these principles by outlining a methodical approach to ventilation control in these high-risk scenarios, allowing responders to minimize exposure and effectively manage the situation.