A group of healthcare professionals from the American Thoracic Society and the European Respiratory Society are working together to agree on the best and most appropriate spirometry testing methods. They are asking lung patients from around the world who have taken a spirometry test (a test that measures the amount of air in your lungs and how quickly you can breathe it out) to participate in a short survey about experiences taking the test. If you would like to participate, please go to: https://www.surveymonkey.co.uk/r/spirometry_experience?platform=hootsuite