February 10, 2021

CDC: Double-Masking Helps Reduce Exposure To The Coronavirus-Politico

Wearing a cloth mask over a medical procedure mask significantly helps reduce exposure to the coronavirus, according to a new CDC study. Researchers determined double-masking or wearing tightly fitted medical masks can reduce exposure to infectious aerosols by 95 percent — demonstrating that the better the masks fit, the better protection they provide. Medical procedure masks don’t always provide robust protection alone because air can leak around their edges, according to the study, which CDC researchers conducted using dummies fitted with different types of masks. Politico, 02/10/2021