A compressed gas cylinder is a high-pressure container designed to store gases in a compressed form. These cylinders are typically made of steel or aluminum and are used in various applications, including industrial, medical, and laboratory settings. The gas inside is stored at pressures that can exceed 3,000 psi, allowing for a significant amount of gas to be stored in a relatively small space. Safety is crucial when handling compressed gas cylinders. They must be properly secured to prevent tipping and should be stored in well-ventilated areas away from heat sources. Common gases stored in these cylinders include oxygen, nitrogen, and argon, each serving specific purposes in fields like welding, healthcare, and scientific research.