Hard Hyperbaric Chamber is a specialized device designed to provide a high-pressure oxygen environment. Its principle involves creating a closed environment with a pressure higher than normal atmospheric pressure, allowing users to inhale high-concentration oxygen. This can improve the function of tissue cells, promote blood circulation, and aid in the recovery of damaged cells. Typically constructed from hard materials like steel or plexiglass, the hard shell hyperbaric chamber includes a pressure-resistant closed cabin and safety accessories to ensure user safety.