Does the helium method work with any cylinder?

[blackheart3]

I have no idea about the size and the gas quantity.

 

[SomewhatLoved]

A lot of helium in the modern day is mixed with O2, and isn't pure. It's appealing because it's more accessible than nitrogen or argon, but it's less reliable in a lot of ways because finding good quality helium can be an issue.

 

[locked*n*loaded]

Right. Helium needs to be 100% pure helium.

 

[blackheart3]

I found one, its from an industry so i believe its 100 % , i only dont know the size, the quantity, if this quantity will last for hours...