Which method is preferred for quick exit from a structure under heavy smoke conditions?

Staying low to the ground is the preferred method for quickly exiting a structure under heavy smoke conditions because smoke rises, causing the air quality to diminish closer to the ceiling. By remaining low, an individual can breathe cleaner air and avoid inhaling toxic smoke and gases that accumulate higher in the environment. This tactical approach enhances visibility and can lead to a safer and quicker escape route. Additionally, staying low allows for better navigation through the structure, as furniture and obstacles are often more easily circumvented at a lower level. Overall, this method significantly increases the chances of a safe exit in dangerous conditions.