Researchportable oxygen concentratorliquid oxygenpressure swing adsorptionspo2 titration
Portable Oxygen Devices Reveal Performance Gaps
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6.2
Researchers led by Shohei Kawachi report a scoping review (search to September 2025) mapping ambulatory oxygen devices, technologies, and performance across 166 eligible records. They identified 33 portable oxygen concentrators, 10 cylinders, and 6 liquid oxygen systems, noting trade-offs between portability, flow (2–6 L/min), and operating time; liquid oxygen offered best endurance but high cost, highlighting limited innovation and need for lightweight higher-flow devices.
Scoring Rationale
Comprehensive device mapping supports clinical and R&D decisions; scope limited by English sources and descriptive comparisons.
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