VAM 4.0 O2 disconnect alarm sound added. A help page was created and a link to it was added. VAM 4.1 Bellows drive gas shown during manual ventilation. The gas scavenging system was changed to show a smoother and more consistent pressure relief and vacuum relief scenarios. Scavenging bag animated with mathematical manipulation instead of tweening.
Isoflurane fill cap leak shown.
VAM 4.3 Gas control knobs color-coded. O2 flow shown. Bellows drive gas valves controlled by mathematical equations instead of tweening. May 2000 Gradual onset of gas introduced into the system. Speed control modified to follow mouse movements.