Using a dry powder inhaler (DPI) correctly comes down to one core principle: your breath is the engine that delivers the medicine. Unlike a standard press-and-breathe inhaler that sprays medication in a mist, a DPI releases a fine powder that you pull into your lungs with a quick, deep inhalation. Getting the technique right matters more than you might expect. Studies of inhaler use find that nearly half of people skip a full exhale before inhaling, about a third don’t hold their breath afterward, and roughly 29% don’t prepare the device correctly. Each of those mistakes reduces the amount of medicine reaching your airways.
Step-by-Step Technique
The exact way you load a dose depends on your specific device, but the breathing technique is the same across all DPIs. Here’s the full sequence:
- Remove the cap and load a dose of medicine as directed for your device (more on device differences below).
- Breathe out slowly and completely, pushing as much air from your lungs as you can. Hold the inhaler away from your face while you do this. Do not exhale into the mouthpiece.
- Seal your lips tightly around the mouthpiece.
- Inhale quickly and deeply through your mouth for two to three seconds. This forceful breath is what breaks up the powder and carries it into your lungs. A slow, gentle breath won’t do the job.
- Remove the inhaler from your mouth.
- Hold your breath for 5 to 10 seconds. This gives the powder time to settle into your airways.
- Breathe out slowly through pursed lips.
If you need a second dose, close and reset your device, wait the amount of time your pharmacist or prescriber recommended, then repeat the full sequence from the beginning.
Why Exhaling First Is So Important
That full exhale before you inhale is the step people skip most often, and it’s one of the most consequential. DPIs rely entirely on your ability to produce strong airflow. Emptying your lungs first gives you the maximum possible volume and speed on the inhale that follows. If you only breathe out partway, your next breath in will be shorter and weaker, and less powder will reach deep into your lungs where it needs to go.
Loading Your Specific Device
DPIs come in several designs, and each has its own way of preparing a dose. The most common types:
Diskus
Hold the Diskus in one hand and place your thumb in the thumb grip. Push the grip away from you as far as it goes to open the device and expose the lever underneath. Keep the Diskus level and flat, then slide the lever away from you until it clicks. That click means the dose is loaded, and the dose counter will decrease by one. After inhaling, close the Diskus by sliding the thumb grip back toward you. This resets it for the next use.
Ellipta
The Ellipta loads automatically when you open the cover. Slide the cover down until you hear a click, inhale your dose, then close the cover. Keeping it simple is part of the design.
Turbuhaler
Remove the cap, hold the device upright, and twist the base in one direction then back again until you hear or feel a click. That click confirms the dose is loaded. With a Turbuhaler, you won’t feel or taste the powder the way you might with other DPIs, so trust the click rather than waiting for a sensation in your mouth.
If you’re unsure which device you have or how to load it, the package insert has illustrations specific to your model. Your pharmacist can also demonstrate it in person.
Rinsing After Steroid Inhalers
If your DPI contains a corticosteroid (a preventer medication you use daily to control inflammation), rinse your mouth with water and spit after every dose. Steroid particles that settle on your tongue, throat, and the inside of your cheeks can cause oral thrush, a fungal infection that shows up as white patches and soreness. Rinsing removes the residue before it becomes a problem. This doesn’t apply to rescue inhalers that contain only a bronchodilator.
Keeping Your Inhaler in Working Order
Moisture is the enemy of a dry powder inhaler. Humidity causes the fine powder to clump together, which can clog the device and reduce the dose you receive. Store your inhaler in a cool, dry place and avoid leaving it in the bathroom, where steam from showers creates exactly the wrong environment.
This is also why exhaling into the mouthpiece is a problem beyond just blowing powder out. The moisture in your breath can cause clumping inside the device over time. Always turn your head away from the inhaler when you breathe out before your dose.
Some powder may build up around the mouthpiece with regular use. You don’t need to clean the inhaler daily. Follow whatever cleaning schedule came with your device, and when you do clean it, use a dry cloth or tissue rather than water.
Tracking Your Remaining Doses
Most modern DPIs have a built-in dose counter that ticks down each time you load a dose. Check it regularly so you’re not caught off guard when it runs out. On a Diskus, for example, the counter decreases by one each time you slide the lever. Some devices change the color of the counter numbers when you’re getting low, typically in the last 5 to 10 doses. Refill your prescription before the counter hits zero, not after.
Who May Need a Different Inhaler Type
DPIs aren’t the right fit for everyone. Because they depend entirely on your inhalation strength to deliver medicine, they require a moderate to high inspiratory flow rate. People who can’t manage a quick, deep breath in, whether because of severe lung disease, physical frailty, or very young age, may get better results from a metered-dose inhaler with a spacer, which doesn’t require the same level of effort.
Young children generally lack the coordination and lung capacity to use a DPI effectively. Older adults with cognitive impairment or limited hand dexterity may also struggle with the loading mechanism. And during an acute asthma attack or COPD flare, when your breathing is already compromised, a DPI may not deliver a reliable dose. A rescue inhaler in metered-dose form is typically a better choice for emergencies. If you find yourself consistently unable to inhale forcefully enough, that’s worth raising with whoever prescribes your medication so they can match you with a device that works with your breathing ability rather than against it.