Course overview

Dive longer and shorten your surface intervals with the PADI Enriched Air (Nitrox) Diver specialty in Phuket, one of the most popular add-ons for divers heading to the Similan Islands and busy multi-dive days. You learn to analyse and plan dives on enriched air, extending no-decompression limits at the reef and wreck depths typical of the Andaman Sea. The course can be completed without any training dives.

What you’ll learn

• Understand the benefits and limits of enriched air
• Analyse a cylinder's oxygen content
• Set your dive computer for enriched-air mixes
• Calculate maximum operating depth and oxygen exposure
• Plan dives to extend no-decompression limits
• Recognise oxygen-toxicity considerations

Prerequisites

• Minimum age 12
• PADI (Junior) Open Water Diver or equivalent
• Diver medical clearance where required

What's included · What's not

Not included? Sort the rest of your trip

Flights and accommodation aren’t part of the course price, here’s how to book them around your dates.

Probability of sightings · month-by-month

What you're likely to see each month, based on historic operator logs.

Day-by-day itinerary

1. Day1
   Enriched air essentials

   Theory, exam and hands-on gas analysis, then computer set-up and dive planning; optional enriched-air dives at a local reef confirm the procedures and earn certification.

Verified through iDive

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Frequently asked questions