MMWR Report: Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure 2021

MMWR Report: Maximizing Fit for Cloth and Medical Procedure Masks to Improve Performance and Reduce SARS-CoV-2 Transmission and Exposure 2021

What is already known about this topic?

Universal masking is recommended to slow the spread of COVID-19. Cloth masks and medical procedure masks substantially reduce exposure from infected wearers (source control) and reduce exposure of uninfected wearers (wearer exposure).

What is added by this report?

CDC conducted experiments to assess two ways of improving the fit of medical procedure masks: fitting a cloth mask over a medical procedure mask, and knotting the ear loops of a medical procedure mask and then tucking in and flattening the extra material close to the face. Each modification substantially improved source control and reduced wearer exposure.

What are the implications for public health?

These experiments highlight the importance of good fit to maximize mask performance. There are multiple simple ways to achieve better fit of masks to more effectively slow the spread of COVID-19.

LeadingAge Washington has reached out to Dept of Health to find out what implications this report has for residents wearing masks.  As of now, DOH has not changed the guidance for mask use in WA State.

Read full report here.

 

Questions?

Contact: 

Laura Hofmann, MSN, RN – Director of Clinical and Nursing Facility Regulatory Services
c: 425-231-4804

PrintArchiveLibrary

February 10, 2021