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...

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.

Tragic Coral Bleaching Discovered in French Polynesian Islands

The French Polynesian islands of Tahiti and Moorea are reporting more than 50% of their coral reefs have been bleached. As water temperatures remain unusually high for this time of year, coral bleaching is occurring despite the absence of El Niño. Hollis Rebreathers Ambassadors and biologists from the California Academy of Sciences Mesophotic Dive Team...

Hollis Rebreathers