Enflurane or isoflurane were used to induce anaesthesia in children (4-12 ages) scheduled for outpatient surgical procedures. The characteristics of induction with and recovery from enflurane and isoflurane anaesthesia were evaluated. Enflurane and isoflurane were used in equipotent concentrations. There was no difference between the induction times of the agents. But isoflurane anaesthesia had a shorter recovery period compared to enflurane anaesthesia.