Metal-coated balloons, or Mylars, can cause electric infrastructure problems and pose a public safety risk. They are linked to thousands of power outages each year.

The metallic coating can conduct electricity and cause a short circuit or power surge when in contact with power lines. This can lead to large-scale power outages, melting of electrical wires, and fires. Any of these can lead to injuries and property damage.

To reduce the risk of outages and injuries, keep Mylar balloons away from power lines. To stop them from floating away, tie helium-filled balloons to a weight. Keep the weight attached until the balloons are deflated.

If you see a Mylar balloon in contact with a power line or in an electric substation, never attempt to retrieve it yourself. Keep yourself and all other items and people at least 20 feet away. Call the electric utility or 911.