US Patent 12121844 System and method for concentrating gas

Embodiments of gas concentrating systems and methods are provided. In one embodiment, the system includes, for example, a plurality of modules connectable and disconnectable from each other to thereby adjust the (gas) capacity and modality of the connected system. In this manner, a user need not maintain one system for on the go (ambulatory) scenarios and a wholly second system for stationary (e.g., at home) scenarios. The systems and methods further provide the ability to gradually upgrade the system capacity consistent with the user's lifestyle and medical needs.