With the City Council scheduled to vote to end the sale of Mylar balloons filled with helium at 7 p.m. on Aug. 5 at City Hall, Florian said she plans to renew her push for the plastic bag and Styro… ...

“Can I tell you the worst, Mylar balloons, you know those metal balloons that are filled with helium, that kids have at big events. “Instead of other balloons are latex, Mylar balloons are ...

It's a latex balloon filled with hydrogen or helium. As it goes up into the sky, the instrument that is attached will gauge all of the conditions. Once that balloon reaches a certain point, it bursts.

The balloons from South Korea which can cost up to $1,000 each, are filled with helium or hydrogen and contain about 1,500 leaflets, ready to be scattered across the North to encourage defectors ...