肺功能检测仪是一种无创医疗诊断设备。通过检测人在呼吸时的指标数值，来评估肺功能的状况。既可以用于病人检查，也可用于健康人群（包括运动员）的肺健康情况。

Spirometer is a non-invasive diagnosis equipment. It is used to evaluate the lung function by testing some respiratory parameters.  It can be used both in medical diagnosis and normal people (including athlete) health evaluation.