The lifespan of helium balloons can vary depending on several factors such as the quality of the balloon, the amount of helium used, the temperature and humidity of the environment, and the altitude of the location.
In general, helium balloons can last anywhere from a few hours to a few weeks. Standard latex balloons filled with helium will typically last for about 8 to 12 hours, while foil balloons can last for several days or even weeks.
However, it’s worth noting that the helium gas inside the balloon will gradually leak out over time, causing the balloon to become less buoyant and eventually deflate. This process can be accelerated by factors such as exposure to sunlight, heat, or cold temperatures.
To extend the lifespan of helium balloons, it’s important to keep them in a cool, dry place away from direct sunlight and heat sources. Additionally, using a sealant or special treatment on the balloon can help to slow down the rate of helium leakage and keep the balloon afloat for longer.