To prevent carbon monoxide poisoning, it is necessary to do a good job of indoor ventilation, choose gas appliances that meet national safety standards and standardize their operation, and not to repair gas equipment. Carbon monoxide is the product of incomplete combustion of carbon-containing substances, which can be inhaled through the respiratory tract. Since the affinity of carbon monoxide and hemoglobin is hundreds of times higher than the affinity of oxygen and hemoglobin, it can cause carbon monoxide poisoning. Poisoning is manifested by tissue hypoxia, leading to asphyxia, with the most severe effects on the cerebral cortex, thus affecting self-rescue. Prevention of carbon monoxide poisoning includes: 1. Choose gas burning appliances that meet national safety standards, and don’t use gas equipment that exceeds its service life and is out of date. 2. Operate gas equipment and gas-burning appliances in strict accordance with specifications, and avoid continuous use for a long time. 3. Pay attention to indoor ventilation, especially in winter to keep warm under good sealing conditions, so that air circulation. 4. Do not privately install or repair gas burning appliances and other gas equipment. 5. Regularly check the gas equipment, if there is any hidden danger, report it to the police in time. After carbon monoxide poisoning, open the windows in time to ventilate the room and go to the emergency department of the hospital in time.