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.
Keep oxygen tanks at least 5 feet from a heat source, open flames or electrical devices. Never use a candle, match, lighter or other open flame near medical oxygen.
The images below are displayed in the order in which they were tested for comprehension.