血气分析仪是临床诊断中不可缺少的监护仪器,其中空气过滤器是该仪器的一个重要部件,其主要功能是过滤进入膜性泵的空气,该泵出现堵塞后常造成分析结果不准确,甚至会造成气体混合部件的损坏。在临床使用过程中通常需每季度更换一次,若实验环境条件差应月月更换,由于这一部件价 Blood gas analyzer is an indispensable monitoring instrument in clinical diagnosis. The air filter is an important part of the instrument. Its main function is to filter the air that enters the membrane pump. After the blockage of the pump, the analysis result is often inaccurate, even It will cause damage to the gas mixing parts. In the clinical use process, it is usually necessary to change it once every quarter. If the experimental environment is poor, it should be replaced every month due to the price of this component.