Charcoal will not be poisoned if it is burned fully, but it will cause carbon monoxide poisoning if it is not burned fully, especially in a closed environment.
In the case of incomplete combustion, charcoal will generate carbon monoxide, and carbon monoxide and blood hemoglobin binding capacity is particularly strong, 200 to 400 times that of oxygen, which will lead to oxygen can not be combined with hemoglobin, thus appearing in the human body tissue symptoms of oxygen deficiency.
Especially at home in this kind of doors and windows closed sealed environment, the air circulation will lead to the concentration of carbon monoxide is more likely to increase rapidly, resulting in carbon monoxide poisoning.
After poisoning, dizziness, headache, nausea, vomiting, fatigue and other symptoms will occur. If not rescued in time, coma, impaired consciousness, respiratory and circulatory failure may occur, resulting in death.
Therefore, immediately after the occurrence of poisoning, open the windows and ventilation, and timely transfer to the air circulation, if necessary, go to the hospital for hyperbaric oxygen therapy, to help the body of carbon monoxide discharge.