Are there other gasses that could be used. E.g some of the noble gasses like argon or neon?
Ah very interesting, and yes theoretically I believe. Some people are experimenting with other gases due to the price and low availability of Helium.
Rebreathers are becoming a lot more accessible these days and so are making dives much cheaper, but they're still $20k so it takes a while to recoup the cost.
Are there other gasses that could be used. E.g some of the noble gasses like argon or neon?
Ah very interesting, and yes theoretically I believe. Some people are experimenting with other gases due to the price and low availability of Helium.
Rebreathers are becoming a lot more accessible these days and so are making dives much cheaper, but they're still $20k so it takes a while to recoup the cost.
https://www.wikipedia.org/wiki/Argox
Hydrogen is used at extreme depths, but isn't so good at moderate depths, and has its own issues, like being flammable as all fuck