Choose your inhaler by category or by the device image.
In the main page you can slide with your finger or mouse to select the intended inhaler.
By pressing on the inhaler it will show an option the view the inhaler technique either in a pdf file or through an animation.
The plus icon in the animation page allows you to open it in a new page and by doing that you can save your favorite inhaler :), and also see the documentation that supports each inhaler technique.