Table 4.

Examples of possible critical errors performed during dose preparation and loading for device models included in the study.

Device model	Examples of possible critical errors
Breezhaler/Handihaler	• No capsule was inserted into the device • The patient pressed the side button(s) more than once
Diskus (Accuhaler)	• The device was not held with the mouthpiece toward the patient • The lever was slid more than once • The device was turned upside down after sliding the lever
Easyhaler	• The device was not shaken before loading • The device was not held in an upright position after being shaken • The button on top of the device was not pressed down until a click was heard • The button was pressed more than once • The device was shaken after the button was pressed
Genuair/Novolizer	• The device was not held horizontally when loading the dose • No click was heard when the button was pressed down
Respimat	• The cap was not held closed during loading • The device was not loaded by turning the clear base
Turbuhaler	• The device was not held upright (>45° from the vertical axis) during loading • No click was heard when the device was loaded by turning the coloured grip • The grip was turned more than once