NIOSH Respiratory Protective Device Information
Subject: Self-contained breathing apparatus user information regarding compressed breathing gas containers (cylinders), NIOSH approval holder user instructions, and Department of Transportation (DOT) permit and marking
This notice has been superseded. For the latest NIOSH guidance on this topic, please see the updated notice:
https://www.cdc.gov/niosh/npptl/resources/pressrel/letters/respprotect/CA-2018-1006-R1.html
Page last reviewed: August 31, 2018
Content source: National Institute for Occupational Safety and Health