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Standard Interpretations
08/13/1981 - Powered air-purifying helmets are personal protective equipment, not engineering controls. |
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Standard Number: | 1910.1025(e) |
August 13, 1981
Mr. David W. Morris 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. You request in your letter that OSHA regard powered, air-purifying helmets as a form of engineering control. We do not feel that the Agency can adopt this position. Powered, air-purifying helmets are a form of protection worn by employees against hazardous airborne substances. Clearly, forms of protection that must be worn are personal protective equipment. In order for a device or method to qualify as an engineering control for an airborne substance, it must reduce the amount of the airborne substance in the surroundings in which individuals move about. For that matter, the ultimate objective of an engineering control is to improve the environment to the point that personal protective equipment need not be worn. Thus, powered, air-purifying helmets must be considered personal protective equipment, and not engineering controls. We appreciate the opportunity to comment on your concern. If we can serve you again, we shall be glad to do so.
Sincerely,
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