What is Shelter-In-Place?

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  • Shelter-in-place is a short-term measure (measured in minutes or hours, not days) designed to use a facility and its indoor atmosphere to temporarily separate people from a hazardous outdoor environment. 

  • If an accident or attack that created contaminated air occurred in the school area, students would be brought indoors. 

  • Building personnel would close all windows and doors and shut off the heating, ventilation, and air conditioning system (HVAC). This would create a neutral pressure in the building, meaning the contaminated air would not be drawn into the building.