Helium vs nitrogen

[sserafim]

What's the best gas to use for the inert gas method? I've heard about helium and nitrogen. What are the pros and cons of using each? Why would someone use one over the other? Are there any other gases that you would recommend?

 

[ClownWorld2023]

Helium with the required purity (99% or higher) can be much harder to source and is more expensive.

Nitrogen is recommended for this reason, as it's easier to source and cheaper.

 

[Black Sheep One]

Helium for balloons may contain 20 percent Oxygen. It will lift a balloon into the air but it is still breathable. It keeps the kids from accidently killing themselves when making funny noises by inhaling and talking. Nitrogen should be the cheapest. Argon should be second.

 

[username8888]

What's the best gas to use for the inert gas method? I've heard about helium and nitrogen.

Can you afford Inert gas option where you are from? And is it legal to buy them?