Figure 2From: Control of positive end-expiratory pressure (PEEP) for small animal ventilators Airways opening pressure waveforms. a) The airways opening pressure (Pao) for a target PEEP of 5 cmH2O controlled by PEEP-old method; b) and c) The Pao for the targets PEEP of 5 and 15 cmH2O, respectively, controlled by PEEP-new method. Note that for a target PEEP of 5 cmH2O the PEEP-new closes at a Pao around 2 cmH2O.Back to article page