What if some air enters the water?

During the infusion process, a small amount of air enters the blood vessels, which generally does not cause damage to the human body. However, if the amount of air entering exceeds five milliliters, air embolism will occur, and the patient will feel difficulty breathing; if the air enters the blood vessels If the amount exceeds one hundred milliliters, air embolism will occur immediately, and even sudden death may occur.