
Novus Oxygen Breathing Apparatus
The Novus rebreather from Siebe Gorman was primarily developed for the Siebe Gorman submersible decompression chamber. In this chamber, the diver can decompress at various depths by turning a valve on the device to first vent the excess nitrogen into the environment, after which the valve can be turned to another position to allow oxygen to flow in. The Novus has a limited oxygen supply and is equipped with a two-hose breathing system with separate inhalation and exhalation lungs. Technical data on the Novis is very scarce. If you have a manual or additional information, I would be happy to add it to this page.





Therebreathersite was founded by Jan Willem Bech in 1999. After a diving career of many years, he decided to start technical diving in 1999. He immediately noticed that at that time there was almost no website that contained the history of closed breathing systems. The start for the website led to a huge collection that offered about 1,300 pages of information until 2019. In 2019, a fresh start was made with the website now freely available online for everyone. Therebreathersite is a source of information for divers, researchers, technicians and students. I hope you enjoy browsing the content!
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