What should you know about a single-ball incentive spirometer?

It has a mouthpiece, a clear chamber and a movable ball. As you breathe in through the mouthpiece, the ball rises. The movement gives you a simple visual guide for taking a steady inhalation rather than a quick, shallow breath.

The ball is a breathing indicator, not a measurement of blood oxygen or a diagnosis. It should rise with a controlled breath and may stay lower when pain, tiredness, congestion or breathing difficulty limits your inhalation.

The device is different from spirometry. An incentive spirometer helps you practise a deep breath; spirometry is a breathing test that measures how much air you can move and how quickly.

Sit upright and relax your shoulders. Hold the device upright, seal your lips around the mouthpiece, and breathe in slowly through your mouth. Keep the ball moving in the target range recommended by your clinician, then hold the breath briefly if you have been instructed to do so. Remove the mouthpiece and breathe out normally.

Repeat the breathing practice according to the schedule given by your healthcare team. Coughing gently after a deep breath may help clear mucus, but stop if you become dizzy, very breathless or unwell. Clean and store the device as directed, and do not share the mouthpiece.

Seek urgent medical help for severe or rapidly worsening breathlessness, blue or grey lips, new confusion, fainting, or chest pain that is severe or persistent. After surgery or an illness, contact your care team promptly if breathing becomes harder, you develop a fever, cough up blood, or cannot use the device because of worsening symptoms.

A low ball movement on its own does not tell you why breathing feels difficult. Pain control, positioning and the device technique may need review, so report a persistent change to your clinician.

Ask which target level and practice schedule apply to you, whether you should pause for pain or coughing, and how the mouthpiece should be cleaned. If you have asthma, chronic lung disease, recent chest surgery or an injury, ask whether this device is suitable and what warning symptoms should prompt a call.