Inhalation profiles for pediatric subjects with asthma inhaling maximally through another dry powder inhaler show a mean PIF of 75.5 L/min (range: 49.0 to 104.8 L/min) for the 4-year-old subject set (N = 20) and 107.3 L/min (range: 82.8 to 125.6 L/min) for the 8- year-old subject...