Results from the annual questionnaire and the focus groups have been previously reported (Williams & Rabinowitz, 2011). Of individuals who consistently used the device, 89% believed it helped them control their noise exposure and 96% say it helped preserve their hearing. In focus groups, volunteers reported they were often surprised at their level of noise exposures and that the daily monitoring led them to use their HPDs more conscientiously or change the way they performed a task, and that this has improved their hearing protection. One group of workers reported being able to identify a noisy area in the factory and worked with management to make hearing protection mandatory in that area.