Quantitative Fit Testing
Quantitative Fit Testing : A method of assessing the effectiveness of a particular size and brand of respirator on an individual. Instrumentation is used to measure both the test atmosphere (a gas, vapor or aerosol, such as DOP) and the concentration of the test contaminant inside the facepiece of the respirator. The quantitative fit factor thus obtained is used to determine if a suitable fit has been obtained by referring to a table or to the software of the instrumentation. Quantitative fit factors obtained in this way do not correlate well with ssigned Protection Factors, which are based on actual measurements of levels of contaminant inside the facepiece during actual work
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