@Arrakis_Surfer This systems have been out for a long time. https://www.browniedive.com/ I agree with you that a proper training will help to avoid accidents, same apply for snorkeling, a lot of people forget about it. Eventually the hoses are not too long and if they run out of air naturally they will surface. In any case scenario, training will help. #ScubaDive #scubadiving #ScubaTraining