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. 2018 Aug 29;276:437–446. doi: 10.1016/j.snb.2018.08.133

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Fig. 4 — (a) Experimental corona current (μA) versus applied voltage (V). (b) Experimental differential pressure (psi) versus flow rate (L/min). (c) Experimental ozone concentration (ppm) versus flow rate (L/min) for MIRI-1. (d) Experimental ozone concentration (ppm) versus flow rate (L/min) for MIRI-2.