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

A backdraft is a sudden and explosive ignition of gases that happens when a fire has been burning in a confined space and runs out of oxygen, then fresh air suddenly enters the area. Here’s how it happens step by step: ➡️Fire burns in an enclosed space (like a room or building). ➡️The oxygen inside gets used up, so the flames die down — but hot gases and smoke full of unburned fuel remain. ➡️When a door, window, or other opening is made, fresh air rushes in. ➡️The oxygen mixes with the hot gases

The Theme Park History of Backdraft (Universal Studios Hollywood/Universal Studios Japan)