Image of a male and a female each wearing a mask covering the nose and mouth.While masks are no longer required in most settings, many people continue to mask up indoors and on public transportation. The Cambridge Public Health Department (CPHD) strongly supports this practice, especially when the virus is widely circulating in the community.

When masking up indoors, CPHD recommends wearing high-quality disposable masks. These masks, also known as “high-filtration” masks, do a much better job of blocking the virus than cloth or even surgical masks.

CPHD Mask Guides

Updated: May 17, 2022