Safety device for the practice of sports in apnea (Machine-translation by Google Translate, not legally binding)

摘要

Safety device for the practice of sports in apnea based on a lifejacket that consists of air chambers placed strategically characterized by a certain curvature, which allows the inflating to occur in three stages. In this way the subject can rotate, stop the descent and ascend conveniently. (Machine-translation by Google Translate, not legally binding)