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Weighs just 2.3lb | 95±3% Oxygen Concentration |Pulse Dose & Fixed-frequency Oxygen Modes - HUALINGKANG is the lightest yet most practical outdoor oxygen supplement device. Weighing just 2.3lb with a compact size, it's ideal for any outdoor activity. With dual-mode oxygen delivery, and its high-performance bullet-style solenoid valve design overcomes altitude limitations. As long as there’s power, the device starts up reliably in any environment, providing continuous oxygen supply with a stable concentration of 95±3%, helping you regain a healthy rhythm.Important DisclaimerThis
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