JJ-CCR rebreather MOD 1 course (Up to 40m)

This course is a first step into the world of closed-circuit breathing apparatus (CCR), using one of the world's most reliable and popular apparatuses - the JJ-CCR. The course is designed for experienced divers who want to extend their underwater time, reduce gas consumption and enjoy complete silence under […]

JFD Stealth Multi-Role (SMR) CCR Review

Developed by JFD Global (a subsidiary of James Fisher and Sons), the Stealth Multi-Role is designed to solve a key problem for today’s military divers: the need to use different systems for different missions. It combines deep-sea mine countermeasures (MCM/EOD) and shallower, but sustained, special operations (SOF) functionality […]

KISS Xdeep Sidewinder 2, the new era in sidemount CCR diving and CE certification

The wait is over. The diving world, especially technical divers and cave explorers, has long been looking forward to the successor to the legendary KISS Sidewinder. At the Boot Düsseldorf 2026 exhibition, the long-awaited novelty was announced – the KISS Xdeep Sidewinder 2 has officially received CE certification. This is not […]

Buoyancy training and acquisition with the JJ-CCR rebreather

Learning buoyancy with a closed-circuit rebreather (CCR) is a significant and necessary paradigm shift for divers transitioning from open-circuit (OC) systems. The key difference is that the CCR breathing circuit is of fixed volume, which makes the traditional OC technique of using lung volume […]

Oxygen toxicity management with JJ-CCR, insight into CNS and OTU tables

The JJ-CCR (Closed-Circuit Rebreather) is an advanced technical diving tool that, by maintaining an optimal partial pressure of oxygen PO2, significantly extends dive time and improves decompression efficiency. However, these benefits require understanding and tight control over the silent but potentially lethal enemy – oxygen toxicity. […]

Rebreather JJ CCR, technical diving in the Baltic States

The Baltic Sea region and the inland waters of the Baltic States offer unique opportunities for technical diving, which attracts experienced divers. Technical diving is defined as diving beyond the limitations of normal recreational diving (non-stop recreational diving), which involves greater depths, longer dive times, and specialized gas […]