Metal-coated balloons, or mylars, can cause power outages and pose a public safety threat.
The metallic coating can conduct electricity, and can cause a short circuit or power surge when in contact with power lines. This can lead to largescale power outages, melting of electrical wires, and fires, leading to possible injuries and property damage. Helium-filled balloons that float away can
drift for days and miles and can come down anywhere.