In the Before Time I think they usually only wore them at specific times and would throw them away after, so I imagine they naturally would just get replaced at regular intervals. But I'm not a healthcare professional so I don't know exactly how that works, nor do I know what they do in situations like hours-long surgeries.
Normally I see people in the workplace wear them on their chin when no one's around. Hope your chin is clean...
Aren't you supposed to switch those medical masks out every 30 minutes or so? How often do you see people doing that in the work place?
In the Before Time I think they usually only wore them at specific times and would throw them away after, so I imagine they naturally would just get replaced at regular intervals. But I'm not a healthcare professional so I don't know exactly how that works, nor do I know what they do in situations like hours-long surgeries.
Normally I see people in the workplace wear them on their chin when no one's around. Hope your chin is clean...