em_saenz profile image 79

What's the longest time you have kept helium in a balloon?

I was surprised to find a helium balloon I bought six months ago was still partially inflated!

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peachpurple profile image78

peachy (peachpurple) says

2 years ago
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  • em_saenz profile image

    em_saenz 2 years ago

    I wonder if anyone can explain what is behind this?