TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver Course

The TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver Course builds upon entry-level CCR certification and introduces divers to planned decompression diving on a closed-circuit rebreather using air as diluent. This course marks the transition from non-decompression CCR diving into technical CCR diving with mandatory decompression obligations.

At Extreme Watersports, this course is conducted on the Dive Rite O₂ptima CM, a proven CCR platform well suited for structured technical training and future mixed-gas CCR progression.

What Is the TDI Air Diluent CCR Decompression Procedures Course?

This course trains certified CCR divers to plan and execute decompression dives using a closed-circuit rebreather with air diluent. Divers learn to manage increased task loading, execute controlled decompression ascents, and apply disciplined CCR procedures in a technical diving environment.

The course establishes the core skills required for all subsequent advanced and mixed-gas CCR training.

Course Objectives

By the end of the TDI Air Diluent CCR Decompression Procedures Diver Course, divers will be able to:

• Plan and execute CCR dives with planned decompression

• Maintain precise buoyancy, trim, and depth control during decompression stops

• Manage PPO₂ manually and electronically throughout the dive

• Plan bailout strategies for decompression CCR dives

• Execute gas switches and bailout ascents correctly

• Identify and manage CCR failures under increased task loading

• Apply standardized technical CCR procedures and team protocols

Course Structure

The TDI Air Diluent CCR Decompression Procedures Course consists of:

Knowledge Development

• CCR decompression theory and planning

• Gas management for decompression CCR dives

• Oxygen exposure and PPO₂ control

• Bailout planning and contingency strategies

• Risk management for technical CCR diving

Confined / Controlled Water Training

• Advanced CCR skill refinement

• Manual PPO₂ control under task loading

• Bailout drills and failure scenarios

• Ascent control and stop discipline

Open Water Technical CCR Dives

• Planned decompression CCR dive execution

• Multiple decompression stops

• Task-loaded skill performance

• Real-world application of technical CCR procedures

TDI Course Requirements

To enroll in the TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver Course, students must meet the following requirements:

• Minimum age: 18 years

• Certification prerequisite:

  • TDI Air Diluent Closed Circuit Rebreather Diver (or equivalent)

• Experience:

  • Minimum number of CCR dives as required by TDI standards

• Medical:

  • Medical clearance for diving (if required)

Depth & Decompression Limits

• Maximum depth: 40 meters / 130 feet

• Decompression: Planned decompression required

• Diluent: Air

Equipment Requirements

• Closed-circuit rebreather (Dive Rite O₂ptima CM)

• Bailout cylinder(s) appropriate for decompression dives

• CCR-compatible technical dive computer

• Redundant monitoring and safety systems

• DSMB, reels, and decompression accessories

All equipment configurations are standardized and reviewed before diving.

Training Platform – Dive Rite O₂ptima CM

The Dive Rite O₂ptima CM is used for this course due to its:

• Manual and electronic PPO₂ control capability

• Robust design suitable for technical CCR diving

• Compatibility with future mixed-gas CCR training

• Proven reliability in demanding dive environments

Training on the O₂ptima CM ensures skills transfer smoothly into higher-level CCR courses.

Certification & Progression

Upon successful completion, divers receive TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver certification, qualifying them to:

• Conduct CCR dives with planned decompression

• Dive to 40 m / 130 ft using air diluent

• Participate in guided CCR decompression dives

• Progress to TDI Mixed Gas CCR or equivalent advanced CCR training

Who Is This Course For?

This course is ideal for CCR divers who:

• Are ready to move into technical CCR decompression diving

• Want formal training in planned decompression on CCR

• Seek structured progression beyond no-decompression CCR dives

• Plan to advance toward mixed-gas CCR diving

• Value discipline, planning, and controlled execution

Book the TDI Air Diluent CCR Decompression Procedures Course

If you are ready to transition into technical CCR decompression diving, the TDI Air Diluent Closed Circuit Rebreather Decompression Procedures Diver Course provides the essential foundation for safe and disciplined progression.

📲 Contact Extreme Watersports to Book the TDI Air Diluent CCR Decompression Procedures Diver Course