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Core Points - The article highlights the increasing risk of carbon monoxide poisoning due to seasonal temperature drops and the rise in coal and gas heating methods [1][2] - It emphasizes the importance of awareness regarding common scenarios that can lead to carbon monoxide poisoning [2][46] Group 1: Carbon Monoxide Poisoning Cases - Case 1: An elderly woman suffered carbon monoxide poisoning while using charcoal for heating at home, with a blood carbon monoxide level of 21.9%, significantly above the normal range of 0-2% [5][9] - Case 2: A man experienced carbon monoxide poisoning after neglecting to properly close a gas valve while using a gas heater, leading to a dangerous accumulation of gas in a closed space [13][17] - Case 3: A family of three, including an elderly man, suffered poisoning after using an old gas water heater in a poorly ventilated bathroom [20][24] Group 2: Common Scenarios for Carbon Monoxide Poisoning - Scenario 1: Heating with charcoal in enclosed spaces can lead to high carbon monoxide levels, even with windows open [9][17] - Scenario 2: Using gas appliances without proper ventilation can result in dangerous gas accumulation, especially in small or closed areas [17][24] - Scenario 3: Cooking with charcoal in a closed room can cause poisoning, as demonstrated by a family who experienced symptoms after having a hot pot meal [33][37] Group 3: Prevention and Awareness - The article stresses the need for proper ventilation when using heating devices, especially in enclosed spaces [30][43] - It warns against common misconceptions about carbon monoxide, such as the belief that it only comes from burning coal or that it can be detected by smell [54][58] - Recommendations include installing carbon monoxide detectors and ensuring regular maintenance of gas appliances to prevent leaks [17][43]