Air embolization up to 10 mL or more has the potential to be fatal. The danger period for air embolism is usually within half an hour and is generally safer after 24 hours. An air embolism is a type of embolism that occurs when air enters the body’s vascular system and causes a blood vessel embolism. A venous air embolism can be severe enough to cause a pulmonary embolism, leading to respiratory failure and even death. Arterial air embolism may cause coronary or intracranial artery embolism, which can be life-threatening. An air embolism of 10 milliliters or more can be fatal, if it reaches 50 milliliters or more it can lead to death very quickly, if it reaches 100 milliliters or more it can lead to sudden death, and the higher the amount of air embolism, the more dangerous and fatal it is. The danger period for air embolism is usually within half an hour and is generally safer after 24 hours. Air embolism is usually a complication of improper intravenous fluids and surgical procedures. Rarely associated with diving activities, air embolism can lead to shortness of breath, confusion, progressive coma, and even death by shock.