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NIOSH Respiratory Protective Device Information

Subject: Effective Immediately: Voluntary Rescission of 48 Honeywell International Inc. Approvals

NIOSH CA 2023-1071
November 2023


The National Institute for Occupational Safety and Health (NIOSH) has honored a request by Honeywell International Inc. to voluntarily rescind 48 NIOSH respirator approvals issued to Honeywell International Inc.

As of November 29, 2023, any respirator marked with a NIOSH approval label with the below approval numbers are no longer NIOSH approved. The NIOSH Certified Equipment List no longer includes these approval numbers:

NIOSH approval label with the below approval numbers are no longer NIOSH approved
23C-3483 23C-3510 23C-3511 23C-3512 23C-3513 23C-3528
23C-3529 23C-3534 23C-3535 23C-3536 23C-3537 23C-3580
23C-3581 23C-3582 23C-3583 23C-3584 23C-3590 23C-3591
23C-3592 23C-3593 23C-3596 23C-3597 23C-3598 23C-3600
23C-3602 23C-3603 23C-3604 23C-3605 23C-3610 23C-3611
23C-3612 23C-3613 23C-3618 23C-3620 23C-3622 23C-3624
23C-3630 23C-3631 23C-3632 23C-3633 23C-3638 23C-3639
23C-3640 23C-3641 23C-3644 23C-3645 23C-3648 23C-3649

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

Please reach out to Honeywell International Inc. for additional details related to their decision to voluntarily rescind 48 approvals issued to Honeywell International Inc. identified in this notice. The Certified Equipment List can be used to locate other NIOSH Approved® respirators.

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