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Online Medical Reviewer: Deborah Pedersen MD
Online Medical Reviewer: Jessica Gotwals RN BSN MPH
Online Medical Reviewer: Rita Sather RN
Date Last Reviewed: 06/01/2025
© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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Using Single-Dose Dry-Powder Inhalers (DPIs)
You have been prescribed a single-dose dry-powder inhaler (DPI). It uses a powdered medicine capsule. You must put a new capsule into the inhaler each time you use it.
Step-by-Step: Using a Metered-Dose Inhaler With a Spacer
Here are images that show the steps for using a metered-dose inhaler with a spacer.
Using a Peak Flow Meter
A peak flow meter measures how fast you can push air out of your lungs. This tells you how well you are controlling your asthma. Measure your peak flow as many times a day as your healthcare provider tells you to.
Using Dry-Powder Inhalers (DPIs)
Dry-powder inhalers (DPIs) deliver measured doses of powdered medicine into your lungs. Read on to learn how to use yours correctly.
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