How can I wear the mask to keep my glasses from fogging up?
The trick is positioning and using the wire nose piece effectively. Fit the mask farther down your nose toward the tip (closer to where the "bulb" of your nose starts) rather than the bridge of your nose. Pinch the wire piece tight in that position. Then, place the nose piece/bridge of the glasses right behind/above where the mask sits. While it may seem a bit strange at first, the positioning allows more air to escape while you breathe so the glasses do not fog.
Do the masks have care labels? How can you remove them easily?
All masks have TEARAWAY care labels that can easily be ripped off. Lay the mask flat, grip the outer edge firmly in your left hand just forward of the tag, take the tag in your right hand, and pull it down and away. It will tear off completely right at the top.