Fit testing is a breakthrough method of verifying the amount of noise protection that each worker is receiving. Regular screening reinforces the safety culture of the workplace. Issues of poor fit, incorrect insertion, or improper choice of earplug will result in an unacceptable PAR, indicating the need for follow-up. Testing your population ensures that you are delivering the right amount of noise protection for the work environment. Works in conjunction with a CCA-100 or CCA-200 audiometer.