AbstractBackground: Differences in measurements between spirometers can be a challenge in patient diagnostics and follow-up, and in research studies.Aims: The aim was to perform a pilot study to compare spirometric values obtained with different types of spirometers, spirometers of same type, and repeated measurements with the same spirometer.Methods: 12 healthy volunteers performed spirometry on 4 hot-wire (SensorMedics) (HW), 2 ultrasonic (Spirare) (US) and one wedge-bellows (Vitalograph)...
