A backdraft (North American English), backdraught (British English) [1] or smoke explosion is the abrupt burning of superheated gases in a fire caused when oxygen rapidly enters a hot, oxygen-depleted …

Sep 16, 2025 · A backdraft happens when a fire burns in a sealed or poorly ventilated space and runs out of oxygen. The flames may die down, but the heat and unburned gases stay trapped inside.

Mar 13, 2025 · Backdraft occurs when oxygen is reintroduced to an oxygen-deprived, smoldering fire causing an explosive ignition of accumulated gases. Both phenomena are extremely dangerous and …

Oct 10, 2023 · Backdraft is an air-driven event that occurs when oxygen is suddenly introduced into a ventilation-limited space containing unburned fuel and gases. It is extremely dangerous because it …

Mar 1, 2006 · A backdraft involves deflagration or rapid combustion of hot pyrolysis products and flammable products of combustion upon mixing with air. Several conditions are necessary in order …

Feb 27, 2025 · Backdraft is a violent, explosive fire event that occurs when oxygen is suddenly introduced to a fire that has been deprived of air. When a fire burns in an enclosed space (such as a …

May 19, 2020 · Backdraft is usually defined as a deflagration resulting from the sudden introduction of oxygen into a ventilation-limited space containing unburned fuel and gases.

Oct 31, 2025 · A “backdraft” in your home is created when an appliance or device uses combustion (an open flame) that isn’t properly vented, allowing the exhaust to be pulled back into the home.

Feb 24, 2017 · A backdraft is caused by the sudden introduction of air into a fire that has depleted most of the available oxygen in a room or building. Since a fire requires air, fuel and heat, the latter two...

Jun 12, 2023 · Backdraft A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion.