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. 2017 May 26;12:1565–1577. doi: 10.2147/COPD.S115886

Figure 4.

Figure 4

Inhalation flow profiles.

Notes: The profiles in full (Respimat, spontaneous inspiration), dotted (Breezhaler, forced inspiration), and broken thick lines (Genuair and Ellipta, forced inspiration) were used in this study and represent fit curves to average inhalation profiles of patients with the indicated severity of disease and taking into account the different flow resistances of the devices and the breathing modes. Reproduced with permission from Respiratory Drug Delivery 2006, Virginia Commonwealth University and RDD Online.5

Abbreviation: COPD, chronic obstructive pulmonary disease.