Amphibian MK2 with neck pattern breathing bag
This apparatus is on the same principle as the Amphibian Mark 1, the main difference being in the breathing bag which is formed to fit round the neck and shoulders, as in the “Salvus” A.N.S., instead of on the wearer’s back, as preferred by some users. To meet special requirements, a sleeveless jacket is worn on which the oxygen cylinder and valves and CO2 absorbent cartridge are carried, instead of on the usual harness.
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!