What to do: The CDC recommends knotting, folding then tucking the ear loops of 3-ply masks for a better fit — making the edges of the mask fit more tightly to your face. First, fold the mask in half lengthwise, lining up the corners and edges. Second, tie a knot with the elastic loops, as close as you can to the mask, according to an instructional video from the University of North Carolina’s UNC Health. Next, bend the metal nose mold so it fits the shape of your nose. Next, the knot will make the sides of the mask near the tied ear loops puff out. Fold those puffed-out edges in a pleat so it lays flat on your cheek. When putting on the mask make sure it fits snugly.
What not to do: Don’t wear more than one disposable mask at a time; handle the mask only by its ear loops, cords or head straps.
What about KN95: A KN95 shouldn’t need any modifying of the straps. Ideally, this type of mask can filter up to 95% of particles in the air; however, counterfeit KN95 masks make it hard to distinguish real KN95s from fake ones just by looking at them. Do not wear a KN95 mask with an exhalation valve, which can allow respiratory droplets to leak in or out of the mask. If you have facial hair, then this type of mask might not make a good fit. Do not combine a KN95 mask with another KN95 mask or any other type of mask.
