Respirator studies for the Nuclear Regulatory Commission. Protection factors for supplied-air respirators. Progress report, October 1, 1976--September 30, 1977. [Demand type]

Abstract

This report describes the work performed during FY 1977 for the Nuclear Regulatory Commission. The Protection Factors (efficiency) provided by 25 NIOSH approved supplied-air respirators were determined while the devices were worn by a panel of anthropometrically selected test subjects. The major recommendation was that demand-type respirators should neither be used nor approved.