Over the last couple of weeks we have been very lucky to have our friends Rob and Dianne Haas from San Francisco Scuba Schools to teach us about Hollis Rebreather in Lembongan. As well as being a delight to have around, they brought with them a couple of Hollis Semi-Closed Rebreather units for the Twin Island Dive team to train on.
If you don’t know what that is, not to worry, suffice to say you can dive without bubbles while looking very cool underwater 🙂
A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user’s exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user. This differs from an open-circuit breathing apparatus, where the exhal