Comparability of portable and desktop spirometry: a randomized, parallel assignment, open-label clinical trial.

Introduction: Portable spirometers are often perceived as inaccurate. We aimed to evaluate the performance of AioCare®, a new portable spirometer, by comparing it with a reference desktop spirometer.

Materials And Methods: Sixty-two patients diagnosed with asthma or chronic obstructive pulmonary disease performed spirometry examinations on a portable and the reference spirometer.