Sevoflurane consumption level Table 3.21: The average amount of sevoflurane consumed per minute (ml / min) Group Parameters N0.5 (n = 37) N1 (n = 37) p The average amount of sevoflurane consumed (ml / min) 0.14 ± 0.03 0.19 ± 0.05 < 0.001 Comments: The average amount of consumed Sevoflurane of Group N0.5 was lower than that of group N1 and has a statistical significance with p <0.001.