The small-particle aerosol generator (SPAG) produces a small monodisperse aerosol through which of the following?
a. Aerosol impaction by sequential baffling
b. Particle evaporation in a glass drying chamber
c. Use of an inert liquefied gas propellant
d. Aerosol generation using vibrational ener-gy
ANS: B
The device is unique in clinical respiratory care practice in that it incorporates a drying chamber with its own flow control to produce a stable aerosol.
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