Color:Red  |  Size:36 Helium Grade Latex Party Balloons- Perfect for your next party, birthday, wedding, anniversary, celebration, and fiesta! Suitable for use with helium or air. Helium inflated balloons will stay inflated for several hours, while air inflated balloons can last for a couple of weeks. When the balloon is inflated, the molecules stretch. The structure becomes more open as the walls become thinner, so molecules moving from inside the balloon travel a shorter distance through wider channels as they diffuse through the walls. Helium quality balloons are made of much less porous material. Although they may stay inflated for several days, they always deflate quicker than the same balloon filled with air. Air is a mixture of oxygen and nitrogen molecules, which are much larger and heavier than helium atoms.
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