The big fire in Hong Kong is trending, and 90% of people are trapped in the escape misconceptions. Correct knowledge can save lives. I found that in a fire, smoke is the biggest cause of death, far exceeding open flames. Smoke contains high temperatures, toxic gases, and dust; inhaling a few breaths can lead to unconsciousness or even death. If you find smoke in the escape route of a high-rise building during a fire, how should you bail-in? 1⃣ Immediately retreat and assess the situation.