The Drive Pure Oxygen Concentrator is an easy to use, service and maintain 5L concentrator proudly developed and manufactured in the USA. The compact, sleek, inconspicuous neutral color design offers a simple user interface, and easy to view and operate LED indicator lights and flow selector. The time pressure sieve bed oscillation helps to optimize performance, and the unique compressor housing reduces noise and more efficiently cools the compressor, reducing wear and tear. The Pure Concentrator also includes simple, single door access for the foam and HEPA filters, an exhaust system designed to direct airflow away from the user, and a transfill port. Easy to use and maintain 5L concentrator|Simple user interface with easy to view and operate power switch, LED indicator lights, and flow selector|Simple humidifier bottle connection within the compact, sleep, inconspicuous design|Superior mobility with top handle, easy roll casters, and minimal weight|Easy to connect transfill port on every unit|Simple single door access to both the foam and the HEPA filter|Exhaust system design directs airflow away from the user and reduces noise