In addition, she said that healthcare workers must continue "to wear a well-fitted mask at all times when in the same room as patients, clients, residents, or people who are incarcerated." and strongly recommended use of non-vented N95, KN95, or KF94 respirator masks.

Both orders noted that "violation of or failure to comply … is a misdemeanor punishable by fine, imprisonment, or both."

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While California, Oregon, and Washington plan to drop requirements that healthcare workers wear face masks in indoor health facilities on April 3, San Francisco continues to enforce this rule, along with vaccine requirements.

In the first of two orders issued February 28, Susan Philip, MD, MPH, health officer for the city and county of San Francisco, said healthcare workers must continue "to wear a well-fitted mask at all times when in the same room as patients, clients, residents, or people who are incarcerated," and strongly recommended use of non-vented N95, KN95, or KF94 respirator masks.

The second order called for healthcare workers to be vaccinated and, when eligible, to receive a booster.