The PADI Enriched Air Diver course is PADI's most popular diving course, and it's easy to see why. Scuba diving with enriched air nitrox gives you more no decompression dive time. This means more time underwater, especially on repetitive scuba dives. The Fun Part: You can typically stay down longer and get back the water sooner. No wonder many divers choose this as their very first specialty. What you learn: Techniques for getting more dive time by using enriched air nitrox Enriched air scuba diving equipment considerations 6000PHP without dives 10000PHP with 2 dives