The researchers used regular cotton T-shirts to make no-sew face masks. First ... and eight inner layers covering the nose and mouth. The mask could be tied around the head to get a snug fit ...

It should be sealed around the nose and mouth, since any ... cotton is preferable to face coverings made from a single dishcloth or cotton T-shirt. "A cotton mask offers far less protection ...

mouth, sides of the face and under the chin, according to the Centers for Disease Control and Prevention. "The best performing masks will have two or more layers of heavyweight fabric like cotton ...

This might be a hot take, but I’d say that hydrogel masks are the best kinds of sheet masks out there—full stop. Sure, there are certain cotton or ... six best hydrogel face masks.