Abstract: A portable incentive spirometry monitoring device and method of use. The device connected to the base of an incentive spirometer and is capable of monitoring inspiration within the incentive spirometer. The portable incentive spirometry monitoring device has a user interface for inputting a variety of different parameters, including a desired air volume, as well as attempt thresholds. Results can be stored such that medical personnel can review attempts by a patient to monitor therapeutic use, as well as encouraging patient use. The portable incentive spirometry monitoring device may be reused with different incentive spirometers without the need for extensive sterilization.