Fig. 6From: Contemporary portable oxygen concentrators and diverse breathing behaviours -- a bench comparisonPOC triggering for 3 POC devices treating a simulated sleeping adult COPD patient breathing oronasally (nasal 53%, 182 mL); (a) POC setting 1, (b) POC setting 2, (c) POC setting 3, and (d) POC setting 4Back to article page