The document discusses the components and use of a metered dose inhaler (MDI) with spacer. An MDI contains salbutamol and propellant that are mixed by shaking. Using a spacer allows the medication particles to remain in the respirable 1-5 micron range to effectively deliver the dose to the lungs. Different types of spacers are available to use with MDIs.

1. Barry Kidd 2010 1
Metered Dose Inhaler With
Spacer

2. Barry Kidd 2010 2
MDI Components
 Metered dose
Salbutamol
 Inhaler with Cap

3. Barry Kidd 2010 3
Why use a Spacer?
 Allows particles to remain concentrated
and “respirable” (1-5 micron range) to be
delivered
 What does respirable mean?

4. Barry Kidd 2010 4
How Does It Work?
Shake
• mixes propellant and medication
Waste
•1st Dose – contains < 100 mcg
Insert into Spacer
•Using a spacer allows the droplets
to stay “respirable”
Hold
•To patients mouth/face
Deliver Dose
•Push aerosol container
SWISH

5. Barry Kidd 2010 5
Various Types of Spacers