Computerized Spirometry, also known as a Pulmonary Function Test (PFT), is a simple test that checks how well your lungs are working. It measures how much air you can breathe in and out, and how quickly you can blow the air out of your lungs.
Doctors use this test to find out if you have breathing problems like asthma, bronchitis, or other lung conditions. The test is quick, safe, and painless — you just need to breathe into a special machine that records your lung performance.