Decompression Training Frequently Asked Questions

Where can you get decompression diving training?

A number of training organizations offer decompression diving training. Training organizations such as, IANTD, GUE, NAUI, PADI, and TDI all offer decompression diving training. If you are looking for decompression diving training, finding a dive shop in your area with technical instructors may be difficult. Typically, only dive shops that categorize themselves as “technical” shops offer this type of training. You may have to travel out of your area to find a dive shop or instructor.

How much does decompression diving training cost?

Decompression procedures and extended range courses are $200 or more. Trimix courses, which also teach decompression procedures, range from $500 to $800+. These courses assume that you have all of your gear, which means gear is not included in the course price. Check with your training agency and instructor for detailed costs and breakdowns.

How long does the training take to complete?

Decompression procedures and extended range courses require two days to complete and require four dives. Trimix courses can take up to five days to complete. Many hours of classroom work as well as four to six dives must be completed. Each training organization has different requirements and time-to-complete can vary. Check with your training agency and instructor for a detailed time schedule for the class you are interested in taking.

How long does the certification last?

Certification in decompression procedures, trimix, and extended range never expires. There is no yearly requirements or payments to keep your certification current. If you haven’t done a decompression dive in a year or more, it’s recommended that you go through refresher training.

What do you learn in decompression diving training courses?

Decompression training involves learning about decompression procedures, decompression illness (DCI), decompression gasses, the use of oxygen, decompression theory, decompression tables, and dive computers. The student uses staged-decompression techniques and EANx mixtures and oxygen for decompression. The objective is to train you in the proper techniques, gas planning and management, equipment requirements, and hazards of decompression diving.