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...

Why Dive PRISM 2? Nick Hollis Explains

The PRISM 2 is a simple and reliable rebreather that can be used for all types of diving from the shallowest photography dives to the deepest exploration dives. P2 owners are the silent stormtroopers of the underwater world. On a recent liveaboard trip (pre-Covid) there were a number of rebreathers from different manufacturers and a...

Women That Dive: 6 Questions for Marina Bozinovic

Marina Bozinovic, Dive Officer at Cal Academy, has worked (and trained) her way into becoming a leader on the Cal Academy dive research team.

How the Prism 2 is Used for Research

When the typical scuba rig isn’t enough, underwater pros turn to a rebreather—such as the Prism 2—to increase the amount of time they can spend underwater.

What’s new with the Prism 2 CE version?

So, what’s new with the Prism 2 CE version? The answer is...not a whole lot. Why mess with a good thing? After all, if it ain't broke, don't fix it.

5 First Steps for Getting Rebreather Certified

What are the best ways to get started on the path to rebreather certification? How does one get primed and ready for a rebreather course?

Prism 2 Receives CE Certification

After much hard work and anticipation, Hollis Rebreathers is proud to announce the Prism 2 Rebreather has just received CE approval by SGS in UK. Both the front mounted counterlung and back mounted counterlung variants passed all tests in accordance with EN 14143:2013. We are beyond pleased to present the Prism 2 to our European...

Greg Asner Wants Your Help To Fight Coral Bleaching

Greg Asner Wants Your Help To Fight Coral Bleaching

Huish Ambassador, Greg Asner, wants your help to fight coral bleaching. Here is how you can help, how it is done, and how to keep our oceans healthy

Jill Heinerth’s Top Rebreather Safety Tips

Jill Heinerth’s Top Rebreather Safety Tips

Rebreather Safety Tips: Accomplished author and cave diver Jill Heinerth shares her rebreather safety tips. Read as she shares her top safety tips.

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...

Hollis Rebreathers