Review (3/5): Works, but not comfortable
These definitely keep the mask from touching my nose or mouth, but they're not very soft, so they don't form fit to your face either. Therefore they can be a little uncomfortable if you have to wear them for a long period of time. I don't have the need to wear a mask often (I'm at home most of the day) and will still use them when I wear a mask, but they are not as good as I was hoping.