This course is to provide the diver with the information necessary to utilize EANx as a breathing medium. The course may be taught as a stand-alone specialty course to certified divers or the knowledge and skills training may be integrated into other NAUI certification courses including the NAUI Open Water Scuba Diver course.
Upon successful completion of this course or program, graduates are considered competent to utilize EANx (up to EAN40) in open water diving activities without direct supervision, provided the diving activities and the areas dived approximate those of training.