Hollis Rebreathers Blog

Jill Heinerth: How to Calibrate Your PRISM 2 Rebreather

People often ask me how to calibrate a PRISM 2 Rebreather. Proper calibration ensures you are referencing an accurate PO2 reading. It is one of the most critical procedures for preparing a rebreather. Each time you calibrate your rig, you are teaching the unit to read PO2 correctly. A particular...

LP Hose Quality Alert

Hollis Rebreather LLC has been notified of a safety concern regarding specific lots of low-pressure regulator hoses we have supplied to our customers. The manufacturer of these hoses, Danicorp, is conducting a hose recall of all low-pressure hose assemblies purchased between February 22 through September 30, 2018. This product is suspected of not adhering to...

Firmware V65 Software Release Notes

Shearwater Firmware v65 is now available. This update is applicable to the NERD 2, Petrel, Petrel 2, Perdix, and Perdix AI as they share a common firmware base. Due to hardware differences, not all features are available on all models. The following changes apply to all models unless otherwise noted. This update includes new features:...

Customize Your Prism 2 Rebreather

The new PRISM 2 Rebreather Builder from Hollis Rebreathers now allows rebreather divers to fully customize their PRISM 2 Rebreather online. Choose Counterlungs, Cylinders, MOD-1 Mask, Harness, Wing options and more. The PRISM 2 Builder is ideal for rebreather divers who want total control over their rebreather package. “We designed the PRISM 2 Rebreather builder...

Less is More with the Prism 2 Back Mounted Counterlungs

Divers are often looking for new ways to reduce drag and improve streamlining, and now they can with the new PRISM 2 Back Mounted Counterlungs from Hollis Rebreathers! Our new BMCL design allows divers to improve streamlining with less drag and better horizontal trim while leaving the chest free for attachment of additional tanks and...

Motorcycle Diaries

A few years ago, I completed a Motorcycle Safety Class and was struck by the similarities to training rebreather divers. It was really good to be a student instead of an instructor for a change. It's one of those experiences that reminds you what performance pressure feels like and reinforces the qualities of good instruction. I...

Mixed Team Diving

When CCR divers and open circuit (OC) divers dive together, they are referred to as a mixed team. OC divers are often shy about asking a CCR diver how procedures may differ so it is up to you to ensure that gas management and emergency procedures are clear prior to entering the water. There are...

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