[header] How to use an inhaler [title] Remove the cap. [step] The cap is a small covering located over the mouthpiece of the inhaler to prevent foreign objects from getting in the inhaler. Pull the cap to remove it and set it in a safe place. 
[substeps] An uncapped inhaler can pick up germs and debris, which you will then pump into your lungs. Make sure that you don't lose your cap while you're using your inhaler.