2 years old air in steel tank; safe to use?

[GF99/99]

I have steel tank filled with air 2 years ago. Can not fill it now (lockdown). Safe to use?

No reason why it would not be safe as long as what was put in it originally was safe.

Often deep mix BO are stored for years since they never get used.

 

[jale]

Gas in a tank is not like a yogurt with an expiration date
Like a lot of people, got some BO tanks unused for years and I wouldn't think twice about breathing from them

 

[Water_is_my_blood]

Thanks!