A spirometer measures how well your lungs work to help doctors diagnose asthma and other breathing problems. This test is as easy as blowing out your birthday candles.
Note: All information on KidsHealth is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.
© 1995 - 2016 The Nemours Foundation/KidsHealth. All rights reserved.
© 2016 Rady Children's Hospital–San Diego