NIOSH Respirator User Notice
NOTE: This page is archived for historical purposes and is no longer being maintained or updated.
Issue Date: Octobert 21, 2011
From: Heinz Ahlers, Chief, Technology Evaluation Branch, National Personal Protective Technology Laboratory
Subject: Voluntary Recission of Qiaohong Optical Industry Co., Ltd. Certificate of Approvals TC-84A-4532 and TC-84A-4630
At the request of Qiaohong Optical Industry Co., LTD. (QHO), the National Institute for Occupational Safety and Health (NIOSH) has rescinded certificates of approval TC-84A-4532, TC-84A-4630.
As of October 21, 2011, no QHO or private label version respirator model bearing the NIOSH approval numbers listed above is approved and respirators with these approval numbers will not be manufactured, assembled, sold or distributed as a NIOSH approved product.
- Page last reviewed: October 24, 2011 (archived document)
- Content source:
- National Institute for Occupational Safety and Health National Personal Protective Technology Laboratory