Why does a balloon inflated with helium end up falling without necessarily being deflated?

Latex helium balloons float on average for 5-6 hours, aluminum balloons can float for several days.

Latex helium balloons float on average for 5-6 hours, but for a floating time that lasts several days, it is better to opt for aluminum balloons . The choice between these two types of balloons depends on the occasion and the duration desired for your decoration. Latex balloons provide a pop of fleeting color perfect for one-night parties, while foil balloons offer a more robust and durable solution, ideal for events that last a whole weekend or even longer.

If the balloon falls, it is because it has started to deflate, because if it had kept all its helium, it would remain on the ceiling.

All helium-filled balloons deflate within a few hours or days. Helium is the element with the smallest atoms, it eventually diffuses through almost all materials, and it is difficult to make a thin wall that is impervious to helium.

IMPORTANT : If you want to inflate latex balloons with helium for an event or other, the balloons will float for 5-6 hours on average. Of course everything will depend on the quality of the latex, some balloons will be able to float for 10 hours while others only last 3 hours.

Aluminum balloons last several days so you can inflate them 1 day in advance for example.

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