Reminder to get an emergency helium tank if you don't have one already, its only getting more and more expensive as time goes on and less pure so companies can save more money.
You can use any biologically inert gas. E.g. nitrogen.
I actually tried to look into this back in December and I'm pretty sure you can't find commercially available pure helium anymore. The best you'll get is 80% helium 20% air, which is enough to probably leave you with brain damage from lack of oxygen but not kill you.
>>36963408
Get any gas that is used as a protective atmosphere for welding from any shop that sells welding supplies. Guaranteed oxygen free and much cheaper in most cases.
>>36965231
What should you ask for?
should I wear a diaper so I don't get shit everywhere when I die?
>>36966108
Argon>>36966108
Best to ask for Argon. Sometimes you can get Nitrogen as well. But nearly every place should carry Argon.