MR Portable Diagnostic Centre, We provide high-quality digital X-rays, ECGs, and all types of healthcare services across Pune and the PCMC region—right at the comfort of your home, we're just a phone call away. What is a PFT test? PFT stands for Pulmonary Function Test. It checks how well your lungs are working. How much air your lungs can hold. How fast you can blow air out. How well your lungs move oxygen into your blood. Why is it done? Find out if you have lung problems like asthma, COPD, or lung fibrosis. Check how serious the problem is. See if your treatment is working. What happens during the test? You will sit and breathe into a tube. You may need to take deep breaths and blow out hard.