There is no such thing as the latest time an air embolism can be removed. Effective resuscitation within 20 minutes of an air embolism usually eliminates the danger. An air embolism is an embolism caused by air entering an artery or vein. There is no such thing as an air embolism. However, air embolism is clinically recognized as a potentially fatal condition, so in the event of an air embolism, the risk can usually be eliminated if a series of effective first aid measures are administered within 20 minutes. The first aid treatment regarding air embolism is mainly hyperbaric oxygen therapy, which improves oxygen saturation, reduces the volume of the air embolus, and facilitates its absorption by the body. At the same time, it is necessary to keep the patient in the right lateral position, and when the patient shows signs of circulatory failure, cardiopulmonary resuscitation needs to be carried out immediately, as well as vasoactive drugs, such as epinephrine, dopamine, etc., which is conducive to improving cardiac output and saving lives. In conclusion, patients with air embolism require immediate resuscitation measures to prevent life-threatening conditions.