Emergency preparedness supplies equip response teams and set up temporary shelters, medical units, and command centers for managing accident scenes, disaster sites, and other emergencies. Decontamination showers wash biohazards and other hazardous substances from skin and clothing. Emergency light sticks supply light during power outages or at outdoor locations. Emergency response cots and beds provide a place for people to rest and sleep. Emergency water and food rations have a long shelf life to provide sustanance in an emergency. Flood barrier systems and sand bags hold back and divert flood waters. Temporary environmental containment units prevent dust and other contaminants from spreading into surrounding areas.