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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



Cambridge Public Health Department
119 Windsor Street
Cambridge, MA 02139
617-665-3800 (main)
617-665-3888 (fax)
617-643-0744 (TTY)

Hours: Monday-Friday:
8:30 a.m.–5 p.m.
After Hours

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Derrick Neal
Chief Public Health Officer



Cambirdge Health Alliance

Cambridge City
City of Cambridge