Carpenter D R, Willeke K
Department of Environmental Health, University of Cincinnati, OH 45267-0056.
Am Ind Hyg Assoc J. 1988 Oct;49(10):492-6. doi: 10.1080/15298668891380114.
A noninvasive, fast, inexpensive new fit testing method has been invented which relates the slope of the pressure decay inside a respirator during breath-holding to the fit of the respirator on the wearer's face. The dynamic pressure test has been compared with the conventional aerosol test at different leakage levels. The results of this comparison show that the sensitivity of the dynamic pressure test is similar to that of the aerosol test. The pressure test, however, is independent of leak site and probe location and can be performed on respirators before and after their use.
一种非侵入性、快速、廉价的新型适合性测试方法已被发明，该方法将屏气期间呼吸器内部压力衰减的斜率与呼吸器在佩戴者面部的贴合度相关联。已在不同泄漏水平下将动态压力测试与传统的气溶胶测试进行了比较。该比较结果表明，动态压力测试的灵敏度与气溶胶测试相似。然而，压力测试与泄漏部位和探头位置无关，并且可以在呼吸器使用前后进行测试。
