NIOSH Respirators User Notice
Issue Date: April 20, 2010
From: Heinz Ahlers, Chief, Technology Evaluation Branch, National Personal Protective Technology Laboratory
Subject: Voluntary Rescission of Champak Enterprise Co. Ltd Certificate of Approvals TC-84A-4363 and TC-84A-4364
At the request of Champak Enterprise Co. Ltd. (CHP), The National Institute for Occupational Safety and Health (NIOSH) has rescinded certificates of approval TC-84A-4363 and TC-84A4364.
As of April 20, 2010, no CHP respirator model bearing the NIOSH approval numbers listed above is approved and will not be manufactured, assembled, sold or distributed as a NIOSH approved product.