Helium is only good for talking funny...like Munchkins.
Actually you are wrong....but..hey...we’ve all been wrong.
Actually, no. Helium is by far the preferred carrier gas for use in gas chromatography...which is probably, by the numbers, the most widely used analytical instrument type that there is. Folks who depend on GC analyses will be ecstatic with this news.
Its used in commercial diving. He02 surface gas diving or Saturation Diving. We used to go through thousands of dollars a day of gas on open circuit. Now most Saturation Diving systems us a gas reclaim system where the exhaled gas is scrubbed of CO2 replinished with 02 and sent back to the diver.
Helium is used as a shielding gas to allow metals to be welded without oxidation in the joint. A large fabricator, such as a shipyard, uses LOTS of helium. There are other gases that work, but they are more expensive and don't work as well. This is good news for fabricators.