When it comes to managing asthma, inhaler technique makes all the difference. Even with the best medicines, incorrect technique reduces effectiveness. That’s where a spacer comes in. A spacer is a simple add-on device that helps deliver inhaled medication more effectively, especially for those using MDI (Metered Dose Inhalers).
In this blog, we’ll cover what a spacer is, how to use it properly, the right MDI spacer cleaning method, and the most common asthma device mistakes to avoid.
What is a Spacer?
A spacer is a tube-like device that attaches to your inhaler. It holds the medication for a few seconds, allowing you to inhale it slowly and deeply. This prevents the medicine from hitting the back of your throat and ensures more reaches your lungs.
- Best for: Children, elderly, or anyone struggling with coordination.
- Compatible with: Most MDIs (Metered Dose Inhalers).
- Not usually needed for: Dry Powder Inhalers (DPIs).
Benefits of Using a Spacer
- Better drug delivery to the lungs.
- Reduces medicine loss in the mouth and throat.
- Easier coordination between pressing the inhaler and breathing in.
- Lower side effects (such as oral thrush from corticosteroids).
Spacer Inhaler Technique: Step-by-Step
Using a spacer correctly is key to its effectiveness. Here’s the right method:
- Shake your inhaler well before use.
- Insert the inhaler mouthpiece into the back of the spacer.
- Exhale fully before placing the spacer in your mouth.
- Seal lips tightly around the spacer mouthpiece.
- Press the inhaler once to release the medicine into the spacer.
- Breathe in slowly and deeply through the spacer.
- If you hear a whistling sound, you’re inhaling too quickly.
- Hold your breath for 5–10 seconds.
- Exhale gently away from the spacer.
👉 Tip: If you find it hard to take one deep breath, you can take 5–6 normal breaths in and out of the spacer after pressing the inhaler.
MDI Spacer Cleaning: Best Practices
Keeping your spacer clean is essential to ensure medicine delivery and hygiene. Here’s how to do it:
- Frequency: Clean once a week.
- Method:
- Remove the inhaler and separate spacer parts.
- Wash the spacer in warm water with mild dish soap.
- Do not scrub the inside, this can cause static, making medicine stick to the walls.
- Leave it to air dry vertically without rinsing (a thin film of detergent helps reduce static).
- Once dry, reassemble and store in a clean, dry place.
Common Asthma Device Mistakes to Avoid
Even with spacers, many people make small errors that reduce the effectiveness of their inhalers. Watch out for these mistakes:
- ❌ Not shaking the inhaler before use.
- ❌ Spraying multiple puffs into the spacer at once (always do one puff at a time).
- ❌ Breathing in too fast (causing medicine loss).
- ❌ Forgetting to clean the spacer regularly.
- ❌ Not replacing old/damaged spacers (they wear out over time).
My Personal Experience
When I was younger, I often struggled with using an inhaler correctly. Pressing and inhaling at the same time felt like a juggling act. Once I started using a spacer, I noticed my symptoms were better controlled. But one mistake I made early on was not cleaning it regularly which actually reduced medicine delivery because of static buildup. Learning the right mdi spacer cleaning method made a big difference.
Conclusion
A spacer is a simple but powerful tool for anyone using a metered dose inhaler. By learning the right spacer inhaler technique, following proper MDI spacer cleaning steps, and avoiding common asthma device mistakes, you can make sure your medication works as intended.
If you’re new to spacers or struggling with your inhaler, talk to your doctor or asthma educator about the best way to use and maintain your device. Please share your experience with everyone in the Asthma Friend community.
FAQs on Spacer Use
No, spacers are mainly recommended for people using MDIs who have trouble coordinating inhalation. They’re especially useful for children and older adults.
No, spacers are designed only for MDIs. DPIs don’t require them.
Once a week is usually enough, unless your doctor suggests otherwise.
Replace it every 12 months or sooner if it cracks, becomes cloudy, or stops fitting properly.
No, spacers should never be shared, even among family members, as it increases the risk of infections.










