A hyperbaric chamber exploded at the Oxford Center in Troy, Michigan, killing a 5-year-old boy being treated and injuring his mother. What to know about the equipment.

A GoFundMe page identified the boy as Thomas Cooper. "He was the smartest and cutest kid that liked to zoom, zoom, zoom," the fundraiser said.

The family of a 5-year-old boy killed in a hyperbaric chamber explosion at an Oakland County healthcare facility has retained an attorney.