Fire Training & Consultants, LLC on Instagram: "Smoke explosions and backdrafts are not the same problem. A smoke explosion occurs when superheated, fuel-rich smoke accumulates in concealed spaces such as knee walls, cocklofts, attics, and void spaces and is ignited by flame or heat. Oxygen may already be present but the missing element is ignition. A backdraft occurs when a smoldering fire is oxygen-starved. When air is suddenly introduced, the fire rapidly ignites accumulated gases. Constructi