To prevent carbon monoxide poisoning in the home, avoid using outdated water heaters, use coal fires with safety devices, and install carbon monoxide alarms. 1. Do not use out of water heaters: flue water heaters and direct-vented water heaters have certain hidden dangers, and it is also recommended not to close doors and windows tightly when taking a shower in winter. 2. Use of gas fires need to have safety devices: indoor use of gas fires need to have safety devices, such as small ventilation windows, chimneys, but also need to understand the possible symptoms of gas poisoning and some first aid common sense, chimney installation needs to be reasonable. 3. Installation of carbon monoxide alarms: Carbon monoxide alarms can effectively detect the concentration of carbon monoxide in the air, once found that the concentration of carbon monoxide exceeds the limit, you can timely alarm. Carbon monoxide poisoning is a very serious situation, once you find the phenomenon of poisoning, you need to open the window to ventilate, get out of the scene environment, and go to the emergency department of the hospital in time for treatment.