Fig. 5From: Efficacy and safety of nasal high-flow oxygen in COPD patientsDetermination of lung function parameters under nasal high-flow oxygen therapy (HFOT) in 77 stable COPD patients. Dynamic and static lung parameters after both conventional oxygen therapy (COT; white bars) and HFOT (grey bars) were expressed in percent of the predicted value: FEV1 (forced expiratory volume in 1 s), ERV (expiratory reserve volume), IC (inspiratory capacity), VC (vital capacity), RV (residual volume), and TLC (total lung capacity)Back to article page