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An incentive spirometer is a medical device used to help improve lung function after surgery – especially lung surgery – or after an illness such as pneumonia. It’s also commonly prescribed to patients recovering from heart surgery or any other surgery involving prolonged anesthesia and/or post-operative, in-bed recovery.
The incentive spirometer helps retrain your lungs to take slow, deep breaths, which can be difficult and/or painful following surgery or prolonged illness. The device measures how well your lungs fill up with air and helps the lungs maintain patency thus preventing atelectasis (collapse of the alveoli [air sacs] of the lungs).1
The incentive spirometer is an effective, prophylactic tool for most people but may be contraindicated for the following groups of patients:2
Please note: the presence of an open tracheal stoma is not a contraindication but requires adaptation of the device.2
When used properly, the incentive spirometer has amazing effects on the lungs. One of the most important benefits includes the absence of, or the improvement in, signs and symptoms of atelectasis as evidenced by the following:1
Moreover, the device can also help improve the muscles that control inspiration as evidenced by the following:1
The incentive spirometer is a plastic device that consists of a clear tube with a moveable piston. The tube is marked with a gradient scale to measure your progress. The tube is connected to an inhalation nozzle and another tube with a small ball in it to indicate whether you are inhaling with sufficient force. Benefits of the device are fully dependent upon its proper use.
To follow are step by step instructions on how to use an incentive spirometer:
Please note: if you’ve just had surgery and have an incision on your chest or abdomen, try holding a pillow over the incision while you’re using the incentive spirometer and/or when you cough. This will help support the area and minimize pain.1
A number of experts suggest using the incentive spirometer 5 to 10 breaths per session, at a minimum, every hour while you’re awake. Your doctor may recommend a different schedule and it’s always best to follow her instructions.
Tip: to keep track of your progress, write down each time you perform this exercise and how far the piston moves upward in the larger column. Then, show the record to your doctor at your follow-up appointment.
For more information about using an incentive spirometer, talk to your primary care provider, pulmonologist or respiratory therapist.
 COPD Foundation. What is an Incentive Spirometer and How Do I Use It? Accessed March 18, 2018.
 WebMD. Breathing Exercises: Using a Manual Incentive Spirometer. Last updated September 9, 2014.
 AARC Clinical Practice Guideline: Incentive Spirometer. Respir Care 1991;36(12):1402–1405.