AdvertisementCoronavirus FAQs: What Are Mask Braces? What If I Get COVID After 1 Vaccine Dose?February 26, 2021Pranav BaskarSheila Mulrooney EldredfacebookEmailAccording to the CDC using a brace or mask fitter over a disposable mask or a cloth mask is a good way to make your mask more secure and prevent leaks. (Michele Abercrombie/NPR)