Editing Respirator (section)

==== Exercise protocols ====
With regards to fit test ''protocols'', it was noted by NIOSH that "time pressures" resulted in the exclusion of intense exercises meant to simulate workplace use:<ref name="page37">{{harvnb|NIOSH|1992|p=37}}</ref> {{blockquote|Part of the original test procedure called for test subjects to be stressed by treadmill, while undergoing a quantitative respirator leak evaluation. The purpose of this stressing was to simulate actual workplace use of the respirators. We accordingly abandoned the "stress" portion of the exercises, and substituted a period to be spent in a hot humid chamber, to work up a sweat, as a substitute for physical activity.<ref>{{citation |last=Douglas |first=D. D. |title=Respirator Studies for the National Institute for Occupational Safety and Health, July 1, 1974-June 30, 1975, Los Alamos Scientific Laboratory Progress Report LA-6386-PR |publisher=Office of Scientific and Technical Information|location=Los Alamos, New Mexico |pages=35–36 |date=August 1976}}</ref>}}
Neither exercise was included in the [[OSHA]] fit test protocols. Put another way, it has been said:<ref name="page37"/> {{blockquote|The exercise time limits are very short. The required exercises are sedentary and do not replicate movements of workers that may occur in workplaces.<ref>{{citation |first=W. H. |last=Revoir |title=Comments on OSHA's Proposal to Modify Existing Provisions for Controlling Employee Exposure to Toxic Substances Found in 29 CFR 1910.1000(3) and 29 CFR 1910.134(a)(1). Comments submitted to OSHA |date=1990-05-30 |page=20}}</ref>}}