Michigan boy, 5, killed when his hyperbaric chamber exploded

A 5-year-old boy has died while his mother is recovering after a hyperbaric chamber exploded at a Troy medical facility on Friday. But what is a hyperbaric chamber?
A 5-year-old boy died in a hyperbaric chamber explosion at a Michigan medical center; an investigation is ongoing.
An explosion at a medical facility hyperbaric chamber in suburban Detroit Friday has left a 5-year-old boy dead, police ...