Q. What is the lifespan of a metallic balloon?

Answer

Metallic balloons will remain inflated and tight for 3-5 days under ideal conditions. For at least two weeks, they'll keep floating. While these balloons may deflate when exposed to air conditioning, they will quickly recover if the temperature is increased. As a liquid sealant, Hi-Float is applied to the inside surface of metallic balloons to slow the rate at which helium escapes through the balloon's skin. It lengthens the life of a latex balloon by many days beyond its normal float lifespan of 12 hours. Inhaling helium gas from a balloon is dangerous. Though it is non-flammable and non-toxic, inhaling helium can cause death (loss of consciousness due to insufficient oxygen).