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Dr. Rachel Noble is a microbiologist at UNC Chapel Hill. She says one of the most important things is how the mask fits. “If the mask is adjusted incorrectly, air is channeled down and in to the sides of the mask and directly into the nostrils and nostrils. That’s exactly what we don’t want.”
Material also matters. The Center for Disease Control (CDC) advises that all masks must allow unrestricted breathing. The mask should also be snug and comfortable. Comfort is the key; If you itch or you are adjusting the mask, you are touching your face, which is not recommended.
It is also important to have several layers on your homemade mask. Well-woven fabric, such as cotton or a scarf, is ideal. Looser knitting, such as a sweater, has oversized holes and germs can pass through them. But if the fabric is too thick, breathing can be restricted. And we encourage you to stay away from the most stylish fabrics, like string and glitter. Those discharges can harbor bacteria. And don’t forget to wash the masks. It is recommended to wash them at least every day or two, depending on the use.
