Hollis Prism2 Rebreather

Description

Hollis Prism 2 Closed Circuit Rebreather

Silent, efficient and built for serious technical diving – the Hollis Prism 2 is a fully featured eCCR designed for demanding wreck, cave and deep trimix dives.

The Hollis Prism 2 is a modern electronically controlled closed-circuit rebreather (eCCR) aimed at experienced divers who want longer bottom times, warm breathing gas and precise control of PO₂. With a proven track record in wreck, cave and exploration diving, the Prism 2 combines robust engineering with a clean, modular design that can be configured for both recreational and advanced technical profiles.

Whether you’re progressing through PADI Rebreather / Advanced Rebreather or heading towards Tec 40/60/100 CCR, the Prism 2 offers a stable platform for training and serious project diving.

Key features

• Electronically controlled CCR (eCCR) with manual override for precise PO₂ management

• Radial scrubber design for efficient CO₂ absorption and longer scrubber durations

• Integrated ADV (automatic diluent valve) for automatic loop gas addition

• Dual independent oxygen sensors with handset monitoring (plus HUD, depending on configuration)

• Modular frame and harness system – configurable for backmount bailout and different cylinder sizes

• Streamlined hose routing to keep the chest area clear and reduce entanglement risk

• Robust construction suitable for wreck, cave and cold-water diving environments

Who the Hollis Prism 2 is for

• Technical divers moving from open circuit to CCR for longer bottom times and reduced gas costs

• Existing rebreather divers looking for a well-supported, widely used eCCR platform

• Wreck and cave divers who value redundancy, reliability and clean hose routing

• Divers planning to progress through PADI Tec / CCR training on a single, consistent unit

Benefits of diving the Prism 2

• Extended bottom time: dramatically improved gas efficiency compared to open circuit, especially on deeper and longer dives.

• Warm, moist breathing gas: reduced work of breathing and improved comfort on long runtimes.

• Optimised decompression: constant PO₂ control helps streamline decompression profiles under appropriate training and planning.

• Quieter, bubble-reduced operation: ideal for wildlife encounters, photography and wreck or cave environments where noise and bubbles are a disadvantage.

Training & support

The Hollis Prism 2 should only be used by divers who have completed unit-specific rebreather training with a recognised agency. Introductory and advanced courses (e.g. PADI Rebreather Diver, Advanced Rebreather Diver, Tec 40/60/100 CCR on the Prism 2) are available separately.

If you need advice on whether the Prism 2 is the right unit for your diving and training goals, please contact us before purchasing.