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Disoriented firefighters often are killed by flashover or die from asphyxiation in smoke after their masks run out of air. And it doesn't take a large space for

disorientation to occur: the bodies of firefighters have been found next to doors and windows in 10-by-10-foot rooms that had been filled with thick smoke.

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Firefighters should use a search rope when searching in a large -area occupancy. Tie one end of the rope to the entrance door or to a fixed object near the door and play out the other end as you search the interior of the occupancy. The search rope will guide you back to safety when smoke reduces visibility.

search rope - vezetőkötél