Effect of various carrier gases on the halothane output of the Fluotec Mark 3 vaporizer.

The carrier gases--air, nitrous oxide/oxyten (50%/50%), and nitrous oxide (100%)--decreased the halothane output from Fluotec Mark 3 vaporizers an average of 87.9%, 85.4%, and 70.9%, respectively, as compared with the halothane output when oxygen was used as the carrier gas.