By Marie Rosenthal, MS
Wearing a paper medical mask under a high thread-count cloth mask increases protection against SARS-CoV-2, mak-ing double masking akin to the protection offered by an N95 respirator, according to John T. Brooks, MD, a medical epidemiologist at the CDC.
“Double masking has been recently proposed as one means of improving the filtration efficiency of medical or cloth masks,” Brooks explained at a recent press briefing sponsored by the Infectious Diseases Society