Acceptable Breathing Resistance for Respirator Use.
NIOSH 1980 Sep:181-202
Research which has been conducted on acceptable degrees of resistance to breathing in respiratory protective devices is reviewed. Four categories of acceptability are defined and factors contributing to the determination of the boundaries between these categories are discussed. Studies which have investigated degrees of resistance which are physiologically first detectable, subjectively first noticeable, noticeable but tolerable, and just barely tolerable are reviewed. The relationship between the evidence available in the literature on acceptable levels of breathing resistance and various current national standards is examined. The author concludes that allowable breathing resistance should not be any greater than that which is noticeable but well tolerated during the hardest work likely to be performed by wearers of the device.
Respiratory-protective-equipment; Ergonomics; Personal-protective-equipment; Safety-engineering; Pulmonary-function;
Control Technology and Personal Protective Equipment; Research Tools and Approaches;
Papers from the NIOSH International Respirator Research Workshop, September 9-11, 1980, Division of Safety Research, NIOSH, Morgantown, WV