Asthma: Using a metered-dose inhaler (MDI) with a spacer
How to use an inhaler - with spacer Information | Mount Sinai - New York
Amazon.com: Spacer for Using Puffer - Adaptive Aid for Better and Deeper Puff Delivery Into Lungs - Coordinates Puff Inhalation with Natural Breath : Health & Household
How to Clean Your Asthma Spacer | Allergy & Asthma Network
Spacer for metered-dose inhaler
Asthma care: how to use your spacer device, benefits and tips
Using an inhaler with a spacer: How to use, benefits, and tips
Spacer use and care - National Asthma Council Australia