Review (3/5): Adequate, with limitations
These are decent looking thick cotton masks. They're washable in cold water, should be air dried rather than dried with any heat at all. Their big limitation is that there's no metal band allowing the mask to conform to your nose, so your exhaled air fogs your glasses. That also means that there's some unmasked air inhaled through the top edge of the mask, meaning that the mask probably isn't very protective. It's also sized for a very small person. I have quite a small head and face, but the mask just barely covers the area from my nostrils to just below my mouth. It doesn't cover the area below the chin, as most masks do. It's certainly better than nothing. If you do wear this for protection, I strongly recommend that you tape the mask to your face on the bridge of your nose, and to your cheeks.