A physician wants to deliver a therapeutic aerosol to the central and lower airways. To help en-sure maximum deposition in this area, you would select an aerosol generator with an MMAD in what range?
a. 5 to 20 µm
b. 2 to 5 µm
c. 1 to 3 µm
d. Less than 1 µm
ANS: B
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