Original site: www.cdc.gov/niosh/npptl/resources/pressrel/letters/conformitymanuf/CA-2019-1014.html
RestoredCDC.org is an independent project and is not affiliated with, endorsed by, or associated with the Centers for Disease Control and Prevention (CDC) or any government entity. The CDC provides information free of change at CDC.gov. Note the following: 1) Due to archival on January 6, 2025, no information on recent outbreaks is available. 2) Videos have not been restored. 3) Use of this site implies acceptance of this disclaimer.

Español | Other Languages

Error processing SSI file

NIOSH Conformity Assessment Letter to Manufacturers

Subject: Issue Affecting Gas and Vapor Testing for NIOSH Respirator Approvals

This notice has been superseded.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/conformitymanuf/CA-2019-1015.html

NIOSH CA 2019-1014
March 2019

Issue Affecting Gas and Vapor Testing for NIOSH Respirator Approvals [PDF – 133 KB]

Error processing SSI file

NIOSH Conformity Assessment Letter to Manufacturers

Connect with NPPTL

Follow NIOSH

NIOSH Homepage