![Carnegie Institution of Washington publication. SPIROMETER UNIT. 35 Oxygen is admitted after the air leaves the carbon-dioxide absorber and between this point and the spirometer connection is made with the respiratory Carnegie Institution of Washington publication. SPIROMETER UNIT. 35 Oxygen is admitted after the air leaves the carbon-dioxide absorber and between this point and the spirometer connection is made with the respiratory](https://c8.alamy.com/comp/RFRMC3/carnegie-institution-of-washington-publication-spirometer-unit-35-oxygen-is-admitted-after-the-air-leaves-the-carbon-dioxide-absorber-and-between-this-point-and-the-spirometer-connection-is-made-with-the-respiratory-tract-of-the-subject-the-general-plan-of-the-apparatus-with-its-different-parts-is-shown-in-figure-10-from-the-rotary-pump-the-air-passes-in-turn-into-a-trap-two-williams-bottles-containing-sul-phuric-acid-a-soda-lime-container-a-sulphuric-acid-container-or-will-iams-bottle-a-can-containing-dry-sodium-bicarbonate-to-remove-acid-fumes-and-finally-reaches-the-respiratory-RFRMC3.jpg)
Carnegie Institution of Washington publication. SPIROMETER UNIT. 35 Oxygen is admitted after the air leaves the carbon-dioxide absorber and between this point and the spirometer connection is made with the respiratory
![Family Use Portable Spirometer Connected by Bluetooth with Smart Devices Spirometry Device for Lung - China Hand Held Spirometer, Family Use Spirometer | Made-in-China.com Family Use Portable Spirometer Connected by Bluetooth with Smart Devices Spirometry Device for Lung - China Hand Held Spirometer, Family Use Spirometer | Made-in-China.com](https://image.made-in-china.com/2f0j00PhRlbiVggAeQ/Family-Use-Portable-Spirometer-Connected-by-Bluetooth-with-Smart-Devices-Spirometry-Device-for-Lung.webp)
Family Use Portable Spirometer Connected by Bluetooth with Smart Devices Spirometry Device for Lung - China Hand Held Spirometer, Family Use Spirometer | Made-in-China.com
![Portable Spirometer Connected by Bluetooth with Smart Devices Spirometry Device for Lung - China Compact Design Spirometer, Light Weight Spirometer | Made-in-China.com Portable Spirometer Connected by Bluetooth with Smart Devices Spirometry Device for Lung - China Compact Design Spirometer, Light Weight Spirometer | Made-in-China.com](https://image.made-in-china.com/44f3j00fjwPgNDlEkBr/Portable-Spirometer-Connected-by-Bluetooth-with-Smart-Devices-Spirometry-Device-for-Lung.webp)