One would think that a person would have to perform this kind of drill again, and again and again to even begin to become comfortable in such a situation. Maintaining a calm, rational approach to rescue and survival would be very difficult if both vision and breathing were impaired.
AFP - Getty Images
Chinese police undergo fire rescue training in a smoke-filled train at a railway station in Beijing on Dec. 18. Thousands of people are killed every year in deadly fires in China due to lax safety measures.