A hyperbaric chamber is a sealed environment where the air pressure is increased beyond normal atmospheric levels. This setup allows patients to breathe pure oxygen, which can help treat various medical conditions, such as decompression sickness, carbon monoxide poisoning, and certain infections. The increased pressure enhances oxygen absorption in the bloodstream, promoting healing and recovery. These chambers can be found in hospitals and specialized clinics. Treatments typically last from 30 minutes to two hours, depending on the condition being treated. While generally safe, hyperbaric therapy should only be administered under medical supervision to avoid potential risks, such as oxygen toxicity.