The Nuvo 10 oxygen concentrator supplies oxygen at a flow rate of 2-10 LPM at an oxygen purity of 87-95% at all flow levels and comes with a ball-type flow meter which can be set between 2-10 LPM. This FDA, CE, and ISO-certified machine weighs 29.26 kg, emits sound at 58 dB, and gives an outlet pressure of 15 psi.