The FitCheck® Technology comprises our range of sensor-enhanced, wireless fit-checking devices and corresponding apps, designed for autonomous daily monitoring of industrial respirator performance. FC6110 is the first on-mask quantitative fit and user seal check device, and FC6120 can be integrated within masks. All models are designed to be used in conjunction with a recognized Fit Test program. The FitCheck® Technology evolves subjective fit checks by providing customized monitoring and digital records. It enables informed decisions, prioritizes user safety, and empowers through process ownership.