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.
Images of 222 nm germicidal ultraviolet radiation deployed in indoor settings. Red circles indicate fixtures. (A) Child care setting. (B) Classroom. (C) University commencement ceremony. (D) School bus. (E) Workout room. (F) Healthcare setting. (G) Nightclub. Images (A)-(F) used with permission by PJ Piper.
