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This page provides user notices issued by approval holders and industry partners. User notices are written notices provided to inform users of a condition or risk that may exist with a NIOSH Approved® product. NIOSH has reviewed and concurs with the facts in the below user notices.
User notices
- April 2026 – User Notice: Walter Surface Technologies acquired ArcOne in February 2020 and Allegro Industries in January 2022
- April 2026 – User Notice: PIP Global Safety recently observed non-conforming product variations in certain lots of 7583P100L and 7582P100L North™ filter cartridges
- April 2026 – User Notice: Technical Bulletin #TB115 BioPak 240R PRO PP Facemask Adapter Interface
- February 2026 – User Notice: GVS acquired RPB Safety LLC in 2021 and has been integrating its business and products
- December 2025 – User Notice: This letter addresses recent inquiries regarding respirators formerly manufactured under the Honeywell International Inc. ("HON") brand, specifically those that hold active NIOSH approvals
- December 2025 – User Notice: INTERSPIRO S9 AND S9 INCURVE SCBA – This product advice refers to NIOSH Approval Number TC-13F-0962 issued by Interspiro and relates to identification of the 45-minute composite cylinder with part number 35689-01
- October 2025 - User Notice: 3M Personal Safety Division has identified that certain 3M™ Versaflo™ TR-800 Powered Air Purifying Respirator (PAPR) motors/ blowers manufactured between September 2024 and April 2025
- October 2025 - User Notice: Draeger PSS 5000 and 7000 Series Self Contained Breathing Apparatus (SCBA)
Archived user notices
As of January 2025, NIOSH only lists manufacturer user notices for one year from date of issue. For user notices issued prior to 2024, please visit the links below.
Disclaimer
Links to non-Federal organizations do not constitute an endorsement of these organizations, their products, or programs by NIOSH and none should be inferred. NIOSH is not responsible for the content of the individual organization web pages found at these links. They are provided solely as a service to our users. A NIOSH certificate of approval is not an endorsement of the respirator by NIOSH. Such endorsements are not to be stated or implied by manufacturers in advertisements or other publicity. NIOSH certification represents that the equipment has met the requirements of Title 42, Code of Federal Regulations (CFR) Part 84.
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The information on this page was last reviewed by subject matter experts to ensure accuracy.
- NIOSH Approved is a registered certification trademark of the U.S. Department of Health and Human Services (HHS) in the United States and several other countries.