A gas cartridge is a small, portable container that holds compressed gas for use in various applications. They are commonly used for camping stoves, portable gas torches, and other outdoor activities that require a small, convenient source of fuel. Gas cartridges typically consist of a metal canister filled with liquefied gas, such as propane or butane. The canister is sealed with a valve that allows the gas to be released when needed. Some gas cartridges also feature a safety system that prevents accidental release of the gas, such as a self-sealing valve or a pressure relief system. Gas cartridges are a popular choice for outdoor enthusiasts because they are lightweight and easy to transport. They also offer a convenient source of fuel that can be quickly and easily replaced when needed. However, it is important to use caution when handling gas cartridges and to follow the manufacturer's instructions for safe use and disposal.