Powered air-purifying helmets are personal protective equipment, not engineering controls.
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.
August 13, 1981
Mr. David W. Morris
Division Manager, Human Resources
Chloride Automotive Batteries
3507 50th Street South
P.O. Box 1124
Tampa, Florida 33601
Dear Mr. Morris:
Your letter to Mr. Loren B. Canada, Sr., of our Macon, Georgia, Area Office has been forwarded to OSHA's National Office for a response because an issue of nationwide significance is involved.