- Saint John, Indiana, United States
- Mar 2nd
The FitTester 300 CE Introduction The FitTester 3000 CE measures face-to-facepiece fit of a respirator. With a perfect respirator and fit, all inhaled air is forced through the filter system, thereby providing maximum respiratory protection for the individual. If the face-to-facepiece seal leaks, unfiltered air bypasses the filter system and enters the individual’s lungs during inhalation, thus reducing respiratory protection.