rideheightsreels on Instagram: "What you’re seeing here is a technique firefighters use to protect themselves from a backdraft. A backdraft occurs when a fire burning in a closed space suddenly receives fresh oxygen. As fire consumes available oxygen, flames weaken—but the fuel inside remains extremely hot. If a window breaks or door opens, oxygen rushes in, reigniting the fire almost instantly in a powerful burst that can be deadly. To protect themselves, firefighters create a “water shield” wi