Nitrox (EANx) Specialty Enriched air is increased oxygen in the air mix allowing you longer bottom times. Great for cruising around the 30-meter base of local dive sites like Chumporn Pinnacle. This two-dive specialty will take you thoroughly into the advantages and disadvantages of nitrox (EANx), analysing oxygen percentages, and dive planning. Easy and price effective to combine with any specialty, Advanced or Adventure Diver courses. An important stepping-stone into the world of technical diving, the EANx specialty is also great to get more time out of those dive sites.