Fig. 2.
The outlet velocity of the generating ways of the particles from respiratory system. (a) Normal respiration process, (b) sneezing or coughing process ( or 100 m/s).
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.