Pulmonary function tests, also known as lung function tests, are noninvasive procedures that measure how well the lungs take in and release air and how effectively they transport oxygen into the bloodstream. Spirometry is a common pulmonary function test that measures how much air the lungs can hold and how quickly it can be expelled. A spirometer, the device used to perform spirometr... https://www.ukwebwire.com/respiratory-disease-testing-market-trends-size-and-share-analysis/