How long will frequent face recognition in health system disappear?

As long as you register, it will basically not disappear automatically.

Generally, systematic face recognition will not disappear automatically as long as you register, and it will always exist as long as you are using it.

Face recognition is a biometric identification technology based on face feature information. A series of related technologies, usually called portrait recognition and face recognition, are used to collect images or video streams containing faces, automatically detect and track faces in images, and then recognize the detected faces.