This virtual assistant provides information on spirometry, a diagnostic test used to measure lung function. It explains how the test is performed, where the patient breathes deeply and exhales into a device called a spirometer to measure the volume of air they can inhale and exhale, as well as how quickly they do so. Spirometry is useful for diagnosing lung conditions such as asthma, COPD (chronic obstructive pulmonary disease), and other respiratory diseases. It also describes the parameters measured, such as forced expiratory volume (FEV1) and forced vital capacity (FVC), and how to interpret the results. It is aimed at both patients undergoing the test and healthcare professionals interested in its application.