Close-up of an elderly woman using an electronic thermometer in a hospital

A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. A spirometer measures ventilation, the movement of air into and out of the lungs.

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圖片庫的A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. A spirometer measures ventilation, the movement of air into and out of the lungs. 圖片 Image 115374446.

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A Spirometer Is An Apparatus For Measuring The Volume Of Air Inspired And Expired By The Lungs. A Spirometer Measures Ventilation, The Movement Of Air Into And Out Of The Lungs. 免版權照片，圖片，畫像及圖片庫. Image 115374446.

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A spirometer is an apparatus for measuring the volume of air inspired and expired by the lungs. A spirometer measures ventilation, the movement of air into and out of the lungs.

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