Background: The American Thoracic Society has published general guidelines for sterility when testing for bronchodilator responsiveness. However. the extent to which practicing allergists implement sterility measures is currently unknown. Objective: This study aims to understand the adherence to the American Thoracic Society guidelines for sterility among practicing allergists. https://www.roneverhart.com/Blauer-Hi-Vis-B-Dry-Response-Parka/