Gas poisoning on-site first aid measures should immediately let the patient leave the poisoned environment, move the patient in a well-ventilated, fresh air place, pay attention to warmth, and immediately open the window drainage ventilation, the patient should be quiet and rest, to avoid activities that aggravate the burden on the heart and lungs, increase oxygen consumption. In a short period of time the patient to check the respiration, pulse, blood pressure, immediately give emergency treatment, immediately give oxygen, conditions can be transferred to the hyperbaric oxygen chamber to do hyperbaric oxygen therapy, especially for moderate and severe gas poisoning patients, not only to make the sick person resuscitation, but also may reduce the sequelae of the production. Cardiopulmonary resuscitation for those with cardiac respiratory arrest.