See and compare accurate results from pulmonary function tests in seconds with the Welch Allyn PC-Based SpiroPerfect Spirometer. Clearly evaluate pulmonary obstruction or restriction, increase success rates of patients who are undergoing smoking cessation, show progress, and help pediatric patients comply with test procedures. This powerful and accurate Windows®-based software solution interfaces with EMR or patient management systems for onsite or offsite review of key data. Part of the CardioPerfect® Workstation suite.