Fig. 4.
Cumulative mass-weighted APSDs for DPI inhaler “A”—the mass of API collected only by the size-fractionating components of the cascade impactor is considered in this analysis—a NGI at 60 L/min, b ACI at 60 L/min
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.