Scavenging systems do not need to be as powerful as medical vacuum systems, and can be maintained around -50 to -65 kPa (-15 to -19 inHg).
麻醉氣體回收系統無須像抽真空般強力，可維持氣壓在約-50 至 -65 kPa（-15 至 -19 inHg）。