Figure 3From: Inspiratory oscillatory flow with a portable ventilator: a bench studyFlow curve oscillation. Typical oscillatory flow curve of the Oxylog 3000™ (solid line) in comparison with the Evita-4 NeoFlow™ (broken line), with the same settings as Fig. 1. The minimal flow was calculated by dividing the expiratory tidal volume, measured by the Oxylog 3000™, through the time of inspiration.Back to article page