ClearWater Tech, LLC’s eco-friendly OXUS 8 SCFH and 15 SCFH oxygen concentrators provide clean oxygen on demand, quietly and reliably. The small, compact design of OXUS, engineered for applications that require high levels, produce oxygen onsite through a pressure-swing adsorption process, providing a constant flow without storage or cylinder handling. Both concentrators produce 93-percent oxygen, include gas flow meters for quick and easy reference, and are easy to service. http://www.cwtozone.comsales@oxusoxygen.com