It is normal for Mylar balloons to deflate over time. When this happens, the AirWalker can be refilled. If the decor calls for a balloon that hangs rather than floats, the AirWalker can also be filled with air using a hand pump or straw and hung from above by taping the ribbon to its...
bouquets made with helium filled latex balloons will last around 8-12 hours while bouquets with helium filled foil balloons can last up to several weeks.
How a street artist creates 3D balloons on flat walls that seem to pop out at youChris Snyder