What is the primary fate of inhaled aerosol particles that are between 1 and 0.5 µm?
a. Most are cleared during exhalation.
b. Most deposit in the central airways.
c. Most deposit in the upper airways.
d. Most deposit in the alveoli.
ANS: A
Particles between 1 and 0.5 µm are so stable that most remain in suspension and are cleared with the exhaled gas.
Health Professions
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