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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medically reviewed by WellAlly Editorial TeamLast reviewed October 19, 2026Editorial policy
Medication21 min read

Proper Inhaler Technique: Step-by-Step Guide

Published: October 19, 2026Updated: October 19, 2026

Mastering the correct inhaler technique ensures your respiratory medication reaches deep into your lungs rather than depositing on your tongue or throat. Whether managing asthma or COPD, using your metered-dose inhaler correctly maximizes symptom relief and reduces medication side effects. Follow these evidence-based steps to optimize your daily inhaler administration.

Quick Summary

Inhale slowly and deeply while pressing the canister, hold your breath for up to 10 seconds, and always rinse your mouth after using steroid inhalers.

Important Medical Disclaimer

This guide is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with qualified healthcare providers for medical concerns.

Step-by-Step Guide

1

Prepare and Shake the Inhaler

Remove the protective mouthpiece cap and inspect the opening to ensure it is clean and free of dust, lint, or foreign objects. Shake the inhaler vigorously up and down for 3 to 5 seconds to thoroughly mix the medication and propellant. If the inhaler is brand new or has not been used in several days, prime it by releasing test sprays into the air according to the manufacturer's instructions.

Important: Never skip shaking a metered-dose inhaler, as failing to mix the suspension can result in an inconsistent dose.

2

Exhale Completely Away from the Device

Sit up straight or stand to allow your lungs to expand fully. Turn your head away from the inhaler and exhale gently and completely to empty your lungs of air. This creates sufficient lung capacity to inhale the aerosolized medication deeply and effectively.

3

Position the Mouthpiece and Form a Tight Seal

Bring the inhaler to your mouth, keeping the canister upright. Place the mouthpiece between your teeth above your tongue, taking care not to block the opening with your tongue or teeth. Close your lips tightly around the mouthpiece to form an airtight seal, or attach a valved holding chamber (spacer) if prescribed.

4

Press Canister and Inhale Slowly and Deeply

Begin breathing in slowly and steadily through your mouth, then immediately press down firmly on the top of the canister once to discharge one dose. Continue inhaling smoothly and deeply over the course of 3 to 5 seconds. Breathing in too rapidly can cause the drug particles to hit the back of your throat instead of reaching the lower airways.

Important: Do not press the canister multiple times in a single breath; administer only one puff per inhalation cycle.

5

Hold Your Breath for 10 Seconds

Remove the inhaler from your mouth and close your lips. Hold your breath for up to 10 seconds, or for as long as is comfortable, without straining. This pause gives the microscopic drug droplets time to settle onto the bronchial tissues rather than being exhaled immediately.

6

Exhale Gently and Wait Before a Second Dose

Breathe out gently and normally through your nose or mouth. If your healthcare provider prescribed a second puff, wait approximately 30 to 60 seconds before repeating the process from the beginning. Waiting allows the first dose to open the airways slightly, improving the delivery of the second dose.

7

Rinse Your Mouth and Store Properly

Replace the protective cap over the mouthpiece immediately after use to keep it clean. If your inhaler contains an inhaled corticosteroid (such as fluticasone or budesonide), swish water around your mouth and spit it out thoroughly. Store the inhaler at room temperature away from excessive heat or moisture.

Important: Always spit the rinse water out; swallowing it increases systemic absorption of the steroid and can lead to side effects.

Frequently Asked Questions

Why should I consider using a spacer with my metered-dose inhaler?
A spacer is an attachment that holds the mist between the inhaler and your mouth. It removes the need for perfect coordination between pressing the canister and breathing in, reduces throat irritation, and significantly increases the amount of drug that reaches your lower lungs.
What does it mean if medication mist escapes from my mouth or nose?
Seeing mist escape usually means your lips were not tightly sealed around the mouthpiece or you breathed in too late after pressing the canister. If this occurs, reposition the device, ensure a snug seal, and repeat the dose properly.
How do dry powder inhalers (DPIs) differ from metered-dose inhalers (MDIs)?
Unlike MDIs, which require a slow, deep breath alongside a canister press, dry powder inhalers are breath-activated and require a fast, forceful, and deep breath to draw the powder from the chamber. DPIs should generally not be shaken, and you must never exhale into the device.
How often should I clean my inhaler and spacer?
Most plastic inhaler actuators and spacers should be cleaned once weekly. Remove the metal canister (never wash the canister), rinse the plastic casing under warm running water, and let it air dry completely overnight.
  1. 1
    CDCSource
  2. 2
    NHSSource
  3. 3
    NIH / NHLBISource
  4. 4
    Mayo ClinicSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed October 19, 2026. · Read our editorial policy