How much visibility does a firefighter have inside a burning building?

In the movies, rugged and all-knowing firefighters appear in silhouette against a glowing orange and red backdrop of flames. The occasional billow of smoke appears at a window or door, and we can see everything that is going on. The reality of it is quite different. While the flames do provide light, they also provide an overabundance of smoke, which may be added to with burning chemicals. This cuts visibility back to at least 15% if not a flat-out 0.

Asked by Leni Davenport · Last updated 5 years ago · 14.8K views · SOURCE