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NIOSH Respiratory Protective Device Information

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Subject: Effective Immediately: Voluntary Rescission of one Merilogy Inc. Approval

NIOSH CA 2023-1063
August 2023

The National Institute for Occupational Safety and Health (NIOSH) has honored a request by Merilogy Inc. to voluntarily rescind one NIOSH respirator approval issued to Merilogy Inc. 

As of August 16, 2023, any respirator marked with a NIOSH approval label with approval number TC-84A-9294 is no longer approved by NIOSH. The NIOSH Certified Equipment List no longer includes this approval number.

Due to the voluntary rescission of this NIOSH approval, respirators bearing this NIOSH approval number may no longer be used, manufactured, assembled, sold, or distributed.

Please reach out to Merilogy Inc. for additional details related to their decision to voluntarily rescind one approval issued to Merilogy Inc. identified in this notice. The Certified Equipment List can be used to locate other NIOSH Approved® respirators.

Effective Immediately: Voluntary Rescission of Merilogy Inc. Approval [PDF – 182 KB]

NIOSH Approved® is a certification mark of the U.S. Department of Health and Human Services (HHS) registered in the United States and several international jurisdictions