How to Use Your Asthma Inhaler: Start With Your Device

Unsure whether you’re using your inhaler correctly? Start by identifying the exact device you have. Inhalers can look similar but require different preparation and breathing techniques.

Keep the instructions supplied with your inhaler, and ask your clinician or pharmacist to watch you use it.

Your device determines the technique

Metered-dose inhalers release a measured spray. Some can be used with a compatible spacer or valved holding chamber. Preparation, priming and cleaning depend on the product.

Dry powder inhalers deliver powdered medicine and require a different inhalation technique. Follow your device’s loading instructions; do not attach a spacer.

Soft mist and breath-actuated inhalers have their own operating steps. Instructions for another inhaler may not apply to yours.

These metered-dose inhaler instructions and dry powder inhaler instructions from the National Heart, Lung, and Blood Institute explain the general differences. Your product’s instructions remain essential.

Ask for a technique check

Bring your inhaler and any spacer to your next visit. Show how you normally prepare and take a dose, then ask:

• Am I preparing this device correctly?
• Is my breathing technique right for this inhaler?
• Would a compatible spacer help?
• How do I check the remaining doses, clean the device and know when to replace it?

A technique review is especially useful when you receive a different device or remain unsure about a step.

Know your medication plan

The device tells you how to take the medicine. Your prescription and asthma action plan tell you when and how much to use.

Ask your clinician to explain the role of each inhaler in your plan. Do not change your dose based on this article.

Get help reviewing your asthma care

At your Asthmaniac appointment, we will discuss your symptoms, medication plan and inhaler questions during a non-emergency consultation.

See how online asthma care works →

Book an asthma consultation →

If you are struggling to breathe or your prescribed rescue treatment is not helping, seek urgent care. Call 911 for severe breathing difficulty. Do not wait for an online appointment.