The IANTD Advanced Nitrox Diver program qualifies divers to dive to 42m and to perform required decompression stops for up to 15 minutes using nitrox mixtures up to and including 100% oxygen as a decompression gas, subject to a PO2 limit of 1.5ata.

What do I need to start?

• Nitrox Diver
• Deep Diver
• 30 logged dives
• 18yrs or 15yrs with parent/guardian authorisation

You will complete the IANTD Tek Lite theory with your instructor, including content on oxygen exposure tracking for technical & gas switch dives, equipment set up & configuration, physiology & decompression as well as a gas switch decompression dive planning workshop.

You will then move to our 5.5m indoor heated pool (or a suitable confined water site abroad) where you will learn the skills required to safely conduct decompression, gas switch dives using a twinset and stage cylinder. This session also gives you the perfect opportunity to put the equipment changes made in the workshop to the test.

The IANTD Advanced Nitrox diver program culminates in 4 open water dives, during which you will demonstrate your ability to safely conduct at least two decompression dives to a maximum depth of 42 meters, including a switch to a rich nitrox mix to accelerate your required decompression. On each these dives you will carry out the drills which technical diving makes possible, including shut downs which enable you to deal with catastrophic gas loss in a safe manner and end your dive in a controlled manner. In doing so you will be becoming a self sufficient diver able to deal with buddy separation and/or equipment malfunctions. Completion of the course requires passing the IANTD Advanced Nitrox diver exam, please note that the certification fee is not included and must be purchased upon successful completion of the course at a fee of £25.

For divers wishing to complete the course on a rebreather (semi-closed or closed-circuit) additional skill requirements may apply, depending on the type of rebreather. Please contact us for details.

What's Next?
For those wanting to dive with less narcosis, the IANTD Advanced Recreational Trimix Diver course offers diving to 48m but with a substantial narcosis reduction to the equivalent of a 24m dive. If you'd like to dive deeper, you can continue on to IANTD Technical Diver (a 55m/180ft air and nitrox certification, and the end of the "air" certification ladder) or IANTD Normoxic Trimix Diver (a trimix qualification offering diving to 60m/200ft with Trimix's narcosis reduction).