A typical metered dose inhaler produces which of the following particle distributions?
a. 2 to 6-µm mean mass aerodynamic diam-eter (MMAD)
b. 1- to 3-µm MMAD
c. 6- to 9-µm MMAD
d. Less than 1-µm MMAD
ANS: A
Pressurized metered dose inhalers can produce particles in the respirable range (MMAD 2 to 6 µm).
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a. deductible b. deficient c. past-due d. payable
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