The Centers for Disease Control and Prevention released new research on Wednesday that found double-masking offers more protection against the coronavirus.
The public health agency explored different methods to optimize the fit of cloth and medical masks, in order to improve their performance and reduce transmission of particles carrying SARS-CoV-2.
The research found that wearing a cloth mask over a medical mask significantly boosts protection. Researchers also found that tying knots on the ear loops of medical masks where they attach to the mask substantially improves protection, by pulling the mask closer to the face.
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