NIOSH-approved abrasive-blasting respirators include other than "continuous flow air-line respirators."
NOTICE: This is an OSHA Archive Document, and may no longer represent OSHA Policy. It is presented here as historical content, for research and review purposes only.
OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at https://www.osha.gov.
April 15, 1999
Mr. Larry L. Janssen, CIH
Technical Service Specialist
3M Occupational Health & Environmental Safety Division
3M Building 260-3B-09
St. Paul, MN 55144-1000
Dear Mr Janssen: