A practical guide to inhalers

5) Inhaled medicine you get using different devices

Here are some of the percentages showing how much (or how little) of the inhaled medicine you get using different devices

Percentage of inhaled medicines, depending on device used.

Percentage of inhaled medicines, depending on device used.

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  • Blue inhaler <10%
  • Aerochamber 25-60%
  • Spacer 50-85%

You will see that with both spacers you get up to 6o or 85% of the medicine into your child’s lungs. that means that you lose approx 15 – 40% of the medicine from every puff. This is normal, so don’t worry if you see some vapour coming out of the end of the spacer or inhaler.