A backdraft is a dangerous explosion that happens when a fire has been burning in a closed space (like a room or building) and has used up most of the oxygen. Here’s how it works step by step: ▶️The fire burns in an enclosed area and consumes most of the oxygen. ▶️The flames die down, but hot gases and smoke remain inside. ▶️When someone opens a door or window, fresh air suddenly enters. ▶️The oxygen mixes with the hot gases, and the fire reignites violently, causing an explosive burst of flames

Rare catch on video: Real life backdraft! Crews had a scary moment when fire pushed a cloud of smoke in their direction while battling a major structure fire earlier this week. More emergency videos on YouTube @the4kguy 📺 #sim #sudden #danger #backdraft #flashover | Chief Miller