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.
Particle count outside (left-side panel) and inside (right-side panel) of the negative-pressure patient isolation hood during continuous aerosol generation. The middle horizontal line represents the median; the upper and lower borders of the box represent the upper and lower quartiles. The top and bottom horizontal lines indicate the range. Dots represent values outside of the 97.5 and 2.5 quantiles.
