If it flies or explodes, it's illegal in Minnesota, but even something as simple as a sparkler makes up 30% of injuries in the state.
"They get anywhere between 1,000 and 1,600 degrees, which is hot enough to melt metal," said Nathan Layne, operations supervisor for Allina Health. "A lot of times it’s third-degree burns."
Layne often spends his holiday weekend responding to injuries, and he said around 45% involve children.